Plesiosaurian SS models Check

Since Scott Mardis was doing his comparisons with Plesiosaurs on Loch Ness Monsters and Lake Champlain Champs, I decided to do a few of the same with the Plesiosaurian Sea serpent Sighting sketch by L.S. Larkin from Ivan Sanderson's files  to some of the standard sea-serpent sightings composites.

Oudemans' model from The Great Sea Serpent, 1892

The comparison to Oudemans' Sea Serpent from above and then a comparison to Sanderson's model in profile. Unfortunately, Sanderson does not provide a view from above for his composite. Except for the great length of tail allowed by Oudemans, the relative lengths of the head and neck, body and tail are all in the same general comparative proportions. The real differences are in the size and placement of the flippers and in the width of the body. Larkin seems to have exaggerated the relative widths of the neck and back to something approaching caricature. Below is the comparison to my composite model (Final composite, all Longneck sightings worldwide, final average statistics)

 

My composite has been run on this blog before, This time I chose to darken it in, but it seems to have made a problem with the photoshop. Nonetheless the results are similar: longitudinal measures are similar but Larkin has exaggerated his relative widths, and there is an ambiguity about the size and the placement of the limbs. Larkin says he had trouble making the limbs out because of the movement in the water. And because we have made note of another couple of particularly Plesiosaur-shaped Sea Serpents on this blog before, I reproduces them below for further comparison.

The Alvin (Submarine) one below differs somewhat in having a larger head and longer tail than usual, but these might only be false impressions due to poor viewing conditions. I do have one report of what sounds like a legitimate Plesiosaur-Sea-serpent corpse washed ashore and which was reported to me personally, and the witness said it looked like The Alvin Plesiosaur (Charles Berlitz got duplicate documents as stated on my copies)

The top end of Oudemans' Sea-serpent scale

 

I have been indicating Oudemans' table of sizes and proportions on page 492 of the Great Sea-Serpent and I have indicated that I think that proportions of the more visible parts of the Sea Serpent's body are correct in the first few (Smallest) columns (Always remembering that the long tail probably means the wake in most cases) Why then does the table continue on to what are truly monstrous sizes? To quote Oudemans' text that refers to this table: "I have ventured to draw up the following table of the animal's proportions for ten individuals [10 sample sizes-DD], differing in age or sex.
I am far from asserting that these dimensions will [Absolutely] prove to be correct if ever an individual should fall into the hands of men, but I am sure that they are approximately correct .
Perhaps you will in no case admit the possibility of the existence of an animal of 250 feet [in length]! Well, I leave it to you to fix yourself the utmost possible length of our Sea-serpent!"

[By Oudemans' count, the number of sightings estimating a total length of over 100 feet is around 10% of the total number of reports, and of course that '100 feet' now has to be reduced for some length of tail. Dropping off that top 10% of size estimates makes the largest legitimate size range of sightings equivalent to the HMS Daedalus Sea-serpent and in fact the text does state exactly that]

What I think has happened (And as a matter of fact, what I think I can prove about what happened) is that the largest reports that Oudemans tallies refer mainly to mistaken views of big whales, taking them for Sea-serpents, either singly or several in a line at once. In the instance above at far right, the actual sighting taken to be the midsection of a Sea-serpent is actually a sighting of the whale, and the extended lengths of head and tai are imaginary. The two figures in the center are Oudemans' reconstruction drawing for the Sea-serpents and the whale figure is repeated at far left purely for scale. This is a humpbacked whale.

In the case of the largest Sea-serpent tabulated, Oudemans clearly states above the table that the measurements are from the HMS Osborne Sea serpent sighting. The blog entry dealing with the HMS Osborne sighting is the earlier one on " VOID Sea Serpent categories", and the link to the discussion is below:

http://frontiersofzoology.blogspot.com/2011/06/void-sea-serpent-category-4-many-finned.html