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Showing posts with label Unknown Sharks. Show all posts
Showing posts with label Unknown Sharks. Show all posts

Thursday, 15 September 2011

Another Little Gold-Something or Other

 I was researching the Sinu culture of ancient Colombia, one of the sources where Ivan Sanderson would always be finding "Little Gold Airplanes" and such. I came across a couple of photos showing gold objects in the collections of the American Indian at the Smithsonian and not identified any further than that on their internet source (which was a catalogue of the collection)

The object at the top reminded me of a thresher shark with its long pectoral and tail fins, but it is unlike any known thresher shark in its very long dorsal fins also. This could represent a new Cryptid shark that lives in the Caribbean, but it is possible that it might live in the Pacific and tales travelled over the mountains.


This other gold statuette has a human face and an undefinable sort of a body. It just so happens that a tradition exists that the first ancestors of some Colombian peoples were a pair of Sea Serpents that emerged from Lake Maricaibo (Which is a large saltwater bay.) The tradition possibly means nothing more than the Ancestors arrived in a pair of boats with Seaserpent figureheads. In this case, the piece is interesting because the middle (actual body part) strongly resembles a Plesiosaur, and there are reports of Longnecked Plesiosaur-shaped Sea-serpents in the region that are also said to have fanned tailfins (the Hope On sighting is one example) So possibly this little gold whatsit represents a wereplesiosaur, and the first direct representation of such a thing that I have ever encountered (Although you do get stories where Merfolk can transform into Sea-serpents also)

Best Wishes, Dale D.

Wednesday, 31 August 2011

New Shark Species Announced

This came from Chad Arment with a link to the abstract; because we were just talking about a different, potentially new species of shark, I thought it was germane to the discussion.

Best Wishes, Dale D.

http://yalikedags.southernfriedscience.com/?p=796

New Dogfish Species Found in Taiwanese Fish Market
The new species of Dogfish (shark) from Taiwan (Squalus formosasus)




[Other Dogfish species for comparison]

Posted on August 30, 2011 by Chuck
The Order Squaliformes, home to the dogfish sharks, is one of the most diverse groups of sharks currently swimming the oceans, second only to the Carcharhiniformes in sheer number of species. Within that order is the Family Squalidae, made up of the very familiar spiny dogfish Squalus acanthias (the star of this blog) and a bunch of species that look pretty similar to it. New species tend to pop up in this group, since most of these sharks look pretty similar and the majority of them live in the deep sea. Recently one species was “rediscovered” in plain sight; the North Pacific spiny dogfish Squalus suckleyi had been considered a population of S. acanthias but has been restored to species status by genetic analysis. Now, researchers have found an entirely new Squalus species in the Tashi Fish Market in Taiwan. Say hello to Squalus formosus.

White and Iglesias (2011) gave Squalus formosus it’s pretty cool-sounding scientific name after the geographic location where, so far, all the specimens have been found. “Formosa” is the Portuguese name originally given to Taiwan. This species shares its range with at least four other similar-looking dogfish, including wide-ranging species such as the shortnose spurdog Squalus megalops, shortspine spurdog Squalus mitsukurri, Japanese spurdog Squalus japonicus, and longnose spurdog Squalus blainville.

When a new species is found, the first few specimens are classified as “type” specimens. The first specimen collected is called the “holotype”, and the next few are referred to as “paratypes” and are used to verify the measurements taken on the holotype. And everything, I mean everything, gets measured. Measurements as obscure as the number of fin rays or number of teeth can be the difference between a totally different species and a regional variety. Taxonomy may be dry and tedious, but you can’t say identifying a new species isn’t hard work.

Luckily, both male and female type specimens were available at the Tashi fish market, and White and Iglesias went to work dutifully measuring everything and comparing it to the other common deepwater dogfish found in Taiwanese waters. So what does this beast look like and how does it compare to its close relatives?


Squalus formosus. From White and Iglesias (2011).

Other common dogfish from Taiwanese waters. A.) S. brevirostris B.) S. japonicus C.) S. mitsukurri. From White and Iglesias (2011).
The most obvious feature of Squalus formosus is that it’s very well-armed. The first dorsal spine is huge (nearly the height of the fin), juts straight up, and is rather broad at the base, and the second is nearly as wicked. As someone who has handled hundreds of Squalus acanthias, those dorsal spines intimidate me. This is one of the features White and Iglesias (2011) use to distinguish this new dag from those already known in local waters. The dorsal fins are proportionally large and more upright on S. formosus than other East Asian dogfish, and the first dorsal comes up over the pectoral fins, giving this new shark a somewhat athletic appearance, like a spinner shark with spines. The white margin on its tail is also distinctive, but is shared by S. mitsukurri, but here again that gigantic dorsal spine is what sets S. formosus apart; S. mitsukurri has an absolutely pathetic spine by comparison.

New species are not uncommon news in marine biology, but mid-sized shark that is apparently vulnerable to fishing gear is noteworthy, mainly because it illustrates the urgent need for scientists to get out there and ID stuff. This entirely new shark was not found by multi-million dollar efforts like the Census of Marine Life, it was found for sale in a fish market in Taiwan. This is why the apparent lack of taxonomists coming out of grad school is distressing. This isn’t some obscure invertebrate (though those small squishy critters are also important), this is a cool-looking 3-foot shark that is already experiencing fishing pressure, and we’ve just figured out what it is. Taxonomy is tough and seems boring, but it is important, dammit.

Sources

White, W.T., & Iglesias, S.P. (2011). Squalus formosus, a new species of spurdog shark (Squaliformes: Squalidae), from the western North Pacific Ocean Journal of Fish Biology : doi:10.1111/j.1095-8649.2011.03068.x

Tip o’ the hat to David for sending this my way


Abstract for Scientific description of the species:
http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8649.2011.03068.x/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+3+Sep+from+10-12+BST+for+monthly+maintenance

Monday, 29 August 2011

Unusual Shark off Somalia 1931, Possible New Cryptid Category
















In frontiers-of-zoology@yahoogroups.com, "montalban767" wrote:

I found the folowing item in The Marine Obsever volume 9 1932 page 91:
"The following is an extract from the Meteorological Log of S.S Peshawar, Captain A.E McBryde,Colombo to Suez.Observer Mr D.Meikle, 3rd Officer.
"May 26th,1931, at 11.55am a shark of unusual dimensions was passed on the port side.The Commander, who has been over 35 years at sea,and who sighted the fish,stated that he had never seen a shark of this size or type before.

"At first sight,owing to its bulk,it appeared to be totally oblivious to the presence of the ship,which gave us the impression that it was dying.On inquiry,however,it would seem that this listless conduct was normal,and in accordance with the habits of the Basking Shark.

"It was heading in the a direction at right angles to the ship`s course,and before reaching the beam position the mouth was seen to be in the usual position,i.e well underneath the head,and as we got nearer,this appeared to be unusually large,probably about two feet in width,and greatly resembling that of a cat fish,having the usual whiskery appendages hanging down from the lower jaw or lip.

" The shark was of a reddish-brown colour,and was estimated to be not less than 25 feet long.The ship passed only about 40 feet in front of it,and from here,the full width of the head was thought to be about 4 feet;and,as nearly as we could see,this width extended for a distance of about 8 or 10 feet along the body almost as far as the dorsal fin,which protruded some 5 feet out of the water.

"The top of the head was absolutely flat,and the widely spaced white eyes lent it the characteristic evil appearance of its species. Position of ship,Latitude 11 degrees 49 N., Longitude 51 40 E"



Cape Guardafui is the eastern-most point in Africa, the apex of that area called the Horn of Africa.

The original reply I made was that the shark having whiskers under the snout sounded like the group of shallow-water sharks called the nurse sharks. They are relatives of the bottom-dwelling woebegongs of Australia but are larger, swim at medium depths and are more nearly the same shape as regular sharks. Atlantic nurse sharks grow to about fifteen feet long so this one is about ten feet longer than that. The large dorsal fin is also unusual (it would not be so unusual if it was actually the tail fin: nurse sharks have long tail fins) and the colouration is also unusual. So I do think this is a bona fide unidentified species; a cryptid. It is highly unusual as described and I would like to hear any more reports of it, if there are any.

My correspondant (who is actually CFZ Blogger Richard Muirhead in a secret identity) subsequently sent me the information that Francois de Sarre had written to him:
'I don't know this shark with appendages from the mouth like a cat-fish :-) Maybe it could be the 'nurse shark' (Gynglimostoma cirratum), but that is usually smaller'

And so I made the reply:
'So he said what I said, basically. Nurse sharks are related to both ther smaller carpet sharks and the larger whale sharks, and are in some ways intermediate between them; and the nurse shark species in the Atlantic [G. cirratum] is larger than the one that is normally present in East Africa. There is also another kind of shark that is called a nurse shark but not related, and it has not the projections near the mouth. And you may most certainly convey my thoughts to Francois as well.'


Best Wishes, Dale D.

http://en.wikipedia.org/wiki/Nurse_shark




Comparison made by adjusting Atlantic nurse shark species upwards to 25 feet long and enlarging the dorsal fin: the tail would still be in the size reported for the back fin and so it is possible there was a confusion about that in the sighting. Original artwork is by Michael Brough and made for a public-informational brochure: Copyright © 1999 The Cincinnati Post. My version makes some alterations to the original.

Monday, 2 May 2011

REPOST: DALE DRINNON: Modifications to the Aquatic Cryptids classifications as proposed by Heuvelmans



Sunday, June 27, 2010

DALE DRINNON: Modifications to the Aquatic Cryptids classifications as proposed by Heuvelmans

This is a general outline of my modifications to Heuvelmans, basically what I was distilling down at the opening of my article in the 2010 CFZ yearbook. The other work on the categories follows from this, and the range maps go with this.
Heuvelmans lists three opening categories:

1X) Vague or indeterminate reports, Mistaken observations and False reports or Hoaxes.


While I change the percentages of all the categories I allow those to stand, but I also add to the invalid reports the majority of the following categories:



VOID CATEGORIES






2X) Super Otter 13 definite and 15 possible sightings. It has the overall shape like an otter, a serpentine body which undulates vertically, and a short or medium-length neck. The Super Otter may be about 65-100 feet long, sometimes reported up to several hundred or over a thousand (!) feet long. The creature seen by Hans Egede was probably a Super Otter, and it is perhaps a primitive archaeocete with four legs. As of 1965, the last definite Super Otter was in 1848, so it might be extinct by now.

The Report credited to Hans Egede (actually made by his son Povel) was most likely a misunderstood view of a whale now thought to be extinct in the area, and the Sundsland Fisherman report a more normal view of another creature (whale) of the same type. The majority of the rest of the reports are mistaking waves in the water for living animals. As to the statement that the last one was seen in 1846, reports of the same type continue to the present day and it is permissible that NONE of these reports accurately describes any living creature. NONE of them would therefore be "definite" reports of a "Super-otter" or anything else.



3X) Many Humped 33 definite and 26 possible sightings. As the name suggests, this has several humps on it's back. It has a small head, short or medium-length neck, and (sometimes)a fin on its back as well as a pair of flippers. It seems to be about 60-100 feet long, and may be threatened or endangered, as there are very few recent sightings. It is probably an archaeocete.

The Super-Otter and Many-humped categories are hard to distinguish from one another. Most of the reports in this category are also mistaken impressions of waves in the water, even if a Plesiosaur-shaped creature is making the wave. The distinctively black-backed, white-bellied reports with a back fin come from mistaken views of killer whales.

4X) Many Finned 20 definite and 6 possible sightings. This has a round head with whiskers, short neck, and many fins along the sides. It is probably about 60-70 feet long. The many finned seems to have some kind of armored protection, and seems to be another kind of primitive archaeocete.

Many-finned reports are most often mistaken views of several small cetaceans in a line. Some of the reports included are even Plesiosaur-shaped creatures or large whales. The Along Bay Dragons and Tompandrano do NOT conform to Heuvelmans' description.


A) PLESIOSAURIAN







Longneck Identikit, average of most clear sightings world-wide conform to this pattern: Sightings at sea tend to be 50% again larger, presumably over-estimated to that degree.








Longneck Evidences Map, General












Probable Plesiosaurs, extracted from the last map. Red=range of Leatherback turtles, sightings of Plesiosaur-like creatures are almost always found within the same general range.




1) Longneck 48 definite and 34 possible reports. The Longneck has a long neck, a humped back, and little or no tail. Some Longnecks have two horns, and the creature has a fast speed. The Longneck has flippers (similar to those of a seal) and is probably about 15-60 feet long. The Longneck is probably a kind of pinniped (seals, sea lions, etc) and the first known sighting was in 1846 (Although Heuvelmans states it was known to the ancients as "Physeter" and the first Sea-serpent listed on his table in the back is possibly a ?LN)

1A, Male of 1) Merhorse 37 definite and 34 probable sightings. The Merhorse has a head similar to a horse, a long neck, and a mane. It has big eyes and a snake-like tail. Sightings suggest that ther Merhorse ranges in size from 30-100 feet. The Merhorse's big eyes suggest that it may normally live in the deeper parts of the ocean.








Sightings of Megalotaria - the hypothetical long-necked pinniped







Most other reporters regard Longnecked and Merhorse to be male and female of the same species. The sizes indicated are a clue to this, with the males much larger in size. The largest size estimates should probably be cut in half, AFTER the "Many-Humped" sightings are already dropped out.


It turns out the Merhorse's eyes are not proportionately larger, they are marked with circles around them in contrasting clour to the rest of the head and back, and this has been plainly stated since Pontoppidian the 1700s. Included separately in each category are separate series of reports of large pinnepeds: a kind of sea lion in the first instance and a large seal-elephant seal-in the second series. including these reports in with the others has corrupted the composites created for both of them. The standard Longneck also has a snakelike tail and is otherwise identical in shape to the Merhorse. The Merhorse in turn is also brighter-coloured as well as having a mane, ordinarily a reddish or mohagany brown but sometimes with a greenish colour variation instead. reports of distinctively reflective, silvery or greyish bodies, and distinctively long reddish manes, are due to mistaken observations of Oarfish.





Smithsonian Plesiosaur Model for Comparison


Consequently the total numbers of reports in each category comes down somewhat owing to the mistaken reports being culled out. Both categories are still by far the majority of "Unidentified" Sea-serpent sightings, counted either together or separately.





I consider that Heuvelmans' Longneck or "Megalotaria longicollis" combines two quite different creatures. Thus I call the two creatures provisionally "Megalotaria" for the large (Walrus-sized) and long-necked Sealion, and "Longicollis" for the larger Plesiosaur-shaped Longneck proper.




B) EEL-LIKE


5) Super Eel 12 definite and 11 possible sightings, equally well 12 larger and 11 smaller category sightings. The Super Eel may actually include different species. Most of them look like eels (the only sea serpents that actually are serpentine) though the description of their heads and coloration differ. Super Eels have large eyes and are said to be 20-100 feet long, in two bunches, one averaging about 30 feet and the other nearly 100 feet. Super eels are sometimes dying when at the surface, and are probably fish.


















Sea serpent depictions corresponding to titanoconger(left) and megaconger (right)






Picture - reconstructions of megaconger and titanoconger







The larger and smaller size categories I name Titanoconger and Megaconger, and they differ in ways other than size. The Titanoconger is a really big deepsea, free-swimming fish marked with a distinctively darker back and lighter belly. I doubt if it is actually abyssal. The Megaconger is a smaller fish, although at an average of 20-30 feet long it is still larger than any known eel. It has a more even colouration and seems to favor shallower waters near to the coast and on continental shelves. Two subcategories in the Mediterranean and around Fiji might be more like large moray eels instead, without pectoral fins and otherwise similar to larger editions of the more common local morays.
Heuvelmans also includes a category of reports he calls ?LN?SE because he considers them difficult to categorize as either Longnecks or Super-eels. It would seem to me that about two-thirds of these are Longnecks and possibly a third (or less) are Super-eels: some of them are also reports of whales or other mistaken observations.







Map - 'Megaconger' sightings
















Map - sightings of `Titanoconger`









C) MOSASAURIAN

























6. Marine Saurian When Heuvelmans designed his classifications, the Marine Saurian was known from only 4 definite, 5 possible sightings. It is described as looking like a gigantic crocodile (50-60 feet), and may be some kind of ancient marine reptile.I have subsequently broken this down into a larger-sized category including 6 of the original 9, The actual Marine Saurian although it grows much larger than Heuvelmans states, and a small-sized category including 2 of the 9 and which are similar to the African carcass known as Gambo. One of the reports is different, it is more definitely a crocodile like C. porosis but larger. I have subsequently added more reports to the Marine Saurians, and more recently especially to the largest-sized category. Curiously enough, some of the sightings now added to it were formerly called "Merhorse" and "Longnecked" reports.The Marine Saurians in Heuvelmans' collection reported to the furthest North of their range were always the largest, up to 100 feet long, and with the largest heads, reported as 10-15 feet long and with a neck commonly estimated at 6 feet thick. The dimensions match the creature said to have been killed by the Monogahela. The larger ones seem to prey on large sharks and small whales, and the reports seem to indicate that it follows whale migrations and breeds in warmer waters. A large one and a small one were seen together off South Carolina, and that is also the location of the smallest length otherwise reported (35 feet) It would seem that the larger adults are able to tolerate cold waters (down to freezing) the best. Total lengths for many of the most famous reports are not even estimated.



D) CHELONIAN


7x) Father-of- all-Turtles also known from only 4 possible sightings, is is described as a giant marine turtle. It may have some relation to the ancient giant turtle, Archelon. Heuvelmans considered the existence of the Father-of-all- Turtles to doubtful and the reports to be probably misidentifications.


There are independant reports of an outsized leatherback turtle of Archelon-size as printed by Ulrich Magin an an article to PURSUIT. This may or may not be the outsized giants of the known Leatherback species but in any event has nothing to do with Heuvelmans' category otherwise. Some may still wish to place the Soay beast here.

E) SHARK






8) Yellow Belly Known from only 3 definite, 3 possible sightings (as of 1965), this has a yellow color and is tadpole shaped. Its size is estimated at around 60-100 feet. Heuvelmans suggested that it might a shark or other fish, or even an amphibian[this last was the suggestion of the witness. I count it as a shark, much like a whale shark but with a longer tail and the markings run together to form stripes].Mackal subsequently tried to write off this category as sightings of marine invertebrates, but his arguments were flawed and he contradicted his own theory with other information elsewhere. In specific, he admitted that Salp chains were not known to come in that characteristic colouration.








Since I consider the basic creature described to be a kind of elongated shark, I also classify it loosely with the elongated basking sharks and even Eel-shaped sharks derived from reports of Seamonster corpses cast ashore periodically, which Heuvelmans insited on including as a possibility.


Posted by Jon Downes at 2:56 AM

2 comments:
Dale Drinnon said...
This represents a simplified tabulation of my results from running all of those dissections of the reports I did back in the 1970s and it is basically the only extensive publication OF those results to have seen print since then. I have referred to the evaluation of the sightings of In The Wake of the Sea-Serpents before, but this is the only time that they have been put up all in one place at the same time.

I do have a couple of very minor adjustments to make-the last map shows "Yellow-Belly" sightings with Heuvelmans' cases in yellow and other possible additions in orange squares. Many are questionable because they would have been tail-only and usually 40 feet long for just the tail. If some of the other reports are the same thing, then its couration has also been described as banded in brown-and-green or light-and-dark brown. Some people feel the Le Serrac phot represents this creature and that is about what Dinsdale says in Monster Hunt (The Leviathans in UK)

Apart from that omission, the Sacramento SS up top was not intended to go with the void categories, another old print was meant to show a "Super-otter" in its place. The Sacramento SS is the "Clasic" Marine-Saurian. Since both Jon and I were experiencing email problems and both of our accounts falsely called bouncing at the time we were arranging for this blog entry, I do not blame Jon for these problems at all but I simply say we had transmission problems.

And thanks to Jon for putting it up. This blog should be considered in conjunction to the comments on Bruce Champagne's Sea-serpent categories.

9:56 AM
Dale Drinnon said...
After I had made the map of Yellow-belly sightings, I also thought of another: the 1890 Annie Harper (ship) sighting off the end of Long Island with a 40-foot black-and-lighter-brown tail showing, NOT a head and neck "Periscope". if that were the head and neck it would have to have been swimming backwards. Indeed it seems the most common sightings of the type are the tail part, which might be seen more readily if it is closer to the surface. And I guess if the 40 feet often specified is actually right, the total length would be 80-90 feet.

There was another map without a caption earlier on, the second Longnecks map which has the red area. The red area is the approximate range of the Leatherback tutle and the items marked with lines and boxes were places where witnesses' drawings or photos indicated specific Plesiosaurian anatomy such as the Euryapsid skull or the flipper structure.The neck is of course the defining feature of the type and it is also specifically Plesiosaurian.

4:39 PM