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A baby sea-serpent no more: reinterpreting Hagelund’s juvenile Cadborosaurus


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Our efforts to get analyses of cryptozoological data into the technical, peer-reviewed literature continue, with the ‘our’ being myself, Michael Woodley and Cameron McCormick (aka Lord Geekington). I’m referring here to our new paper, titled ‘A baby sea-serpent no more: reinterpreting Hagelund’s juvenile “cadborosaur” report’, published within recent weeks in Journal of Scientific Exploration (Woodley et al. 2011).

What’s the point of this paper? We show, via an analysis of morphological character states, that the ‘baby Cadborosaurus’ encountered by Captain William Hagelund in 1968 was most likely…. a pipefish, not a baby sea serpent. Cadborosaurus, if you’re not familiar with it, is a long-bodied, horse-headed sea monster thought by some to exist in the waters of the north-east Pacific.

With apologies to those who already know everything I’m about to say, Cadborosaurus – or ‘Caddy’ – has been of extra-special interest to those who follow the literature on marine cryptids/sea monsters ever since Edward Bousfield and Paul LeBlond claimed to find support for its existence in a set of old, black and white photos. Taken at Naden Habour Whaling Station (British Columbia) in 1937, these photos [one is shown below] seemingly show the carcass of an unusual, long-bodied vertebrate, retrieved from the stomach of a sperm whale (Bousfield & LeBlond 1995, LeBlond & Bousfield 1995). Bousfield and LeBlond were so impressed by these photos that they decided to formally name ‘Caddy’ as a new species of extant reptile, Cadborosaurus willsi Bousfield & LeBlond, 1995. This has not been uncontroversial and several authors have criticised Bousfield and LeBlond’s proposals and even the way in which they published this research (e.g., Staude & Lambert 1995, Bauer & Russell 1996, Ellis 1996, Woodley 2008, Woodley et al. 2008).

Numerous ‘Caddy’ sightings are on record. To researchers like Bousfield and LeBlond, they likely represent the same sort of animal. I don’t agree with this hypothesis; as you can see from Cameron’s illustration (below), reported ‘Caddy’ sightings describe a rather diverse set of creatures. Rather than concluding that these are all slightly garbled references to the same animal, it seems more likely to me that people have been describing disparate sightings of assorted species and phenomena. The caveat is that this doesn’t necessarily negate the possible existence of an unknown animal species within the reports.

Assorted 'Caddy' creatures, image by Cameron McCormick. Hagelund's 'baby' is visible at bottom left.

As is also the case with other attempts to neatly classify sea monster reports (I’m thinking of Bernard Heuvelmans), accounts typically used to support the existence of Cadborosaurus have been cherry-picked in order that only those characteristics that conform to the favoured appearance of the alleged creature are emphasised; the others are ignored or downplayed. As for the Naden Harbour carcass, I’m now confident that it represents the decomposed remains of a known species and is not the body of a sea serpent descended from Mesozoic plesiosaurs. More on that to come, some other time.

The importance of ‘Hagelund’s baby’

Hagelund's baby and a pipefish; illustrations by Cameron McCormick.

Like at least a few other technical projects I can think of, our new paper (Woodley et al. 2011) had its genesis in the blogosphere – specifically, in the comments section of an article published over on Tet Zoo ver 2. Cameron happened to state, essentially in passing, that he noticed a very strong similarity between Hagelund’s drawing and pipefishes. In discussion, Michael and I realised that this was not only a fine hypothesis, but also one worthy of coverage in the technical literature.

Hagelund’s report is but one of many tens of Caddy reports, but it’s a significant one because Bousfield and LeBlond used it to endorse a specific view of cadborosaur biology and life history. So, Hagelund captures what he thinks is a baby sea serpent. Bousfield and LeBlond follow this interpretation, and argue that Hagelund’s baby is a juvenile of their Cadborosaurus. Because this ‘baby’ is (a) apparently precocial and living independently of adults, and (b) tiny compared to adults, they conclude that cadborosaurs produce tiny, precocial babies and do not indulge in any form of parental care – classic r-strategy reproduction. Because r-strategy reproduction is more typically associated with reptiles than with mammals, Bousfield and LeBlond used Hagelund’s ‘baby’ to endorse their view that Cadborosaurus is a reptile (specifically, a living plesiosaur).

Viviparity in the plesiosaur Polycotylus, illustration by S. Abramowicz.

It now seems rather ironic that – so far as we know – plesiosaurs actually produced extraordinarily big babies that involved substantial maternal investment and, plausibly, post-parturition parental care (O’Keefe & Chiappe 2011) [for some discussion of this research, go here].

Regardless, the fact remains that Hagelund’s story is an unsupported anecdote, written up decades after the actual event is supposed to have occurred. But – even if the story is true – is ‘baby sea serpent’ really the most likely identification for that little animal? Errr, no. We argue that Hagelund’s animal can be identified specifically as a Bay pipefish Syngnathus leptorhynchus. In an effort to analyse this proposal as objectively as possible, we tabulated a list of obvious external characters present in pipefishes, in Hagelund’s creature (24 different traits can be tabulated from Hagelund’s report), and in an assortment of other north Pacific animals that might, just might, be candidates for the identity of Hagelund’s baby (Woodley et al. 2011) [the table is shown below]. These included decapod crustaceans, poachers, cutlassfishes, sturgeons and seals. We also tabulated the morphological features ascribed to ‘Caddy’ by Bousfield and LeBlond, and also those of various fossil animals suggested at times to be something to do with modern ‘sea monsters’ (Woodley et al. 2011). The conclusion: yup, Bay pipefish is the best match.

It shouldn’t seem ridiculous that Hagelund was apparently unable to recognise a known, north Pacific fish species. Pipefishes are not all that familiar and are rarely encountered. They also do weird stuff that most people would find unexpected: they can produce a neck-like region by bending and raising the anterior part of the body (some pipefish taxa actually spend a lot of their time in a ‘necky’ posture)  and can even raise the head above the water surface, for example. Note also that Hagelund wrote about his encounter with the animal about two decades after the incident occurred, and that’s easily enough time for all kinds of memory slippage and distortion to affect an interpretation.

Greater pipefish (Syngnathus acus); image from wikipedia.

I often find the back-story to a scientific paper as interesting as the paper itself. In this case, we went through several different rounds of review, in one case getting rejected from an august journal simply because cryptozoology is mostly nonsense and hence our analysis must be nonsense too. We also got a bit of flack on another occasion for including an attempt to do cladistics on sea monster reports. Yes, contrary to popular misconception, character scoring and the generation of parsimony trees can be applied to any data set, since cladistics simply groups operational units together on the basis of shared characters – there’s no reason why it should be exclusively applied to datasets of units that undergo biological evolution (and indeed cladistics has been applied to galaxies, volcanoes, languages and ancient texts). Anyway, in the end we cut the cladistics section out and it’ll be salvaged elsewhere – we’ll come back to the classification of sea monsters some other time, oh yes.

Email me if you want the pdf. Oh, and I do know that pipefishes aren’t tetrapods…. the Cadborosaurus creature hypothesised to exist by Bousfield and LeBlond, however, is.

Cadborosaurus willsi, as imagined by Bousfield & LeBlond. Illustration by D. Naish.

I want to finish here by echoing sentiments made at Lord Geekington by Cameron. Bousfield and LeBlond knew full well that their conclusions and ideas about Cadborosaurus would get a rough ride in the technical community, and they did what they did because they found the evidence for the reality of Cadborosaurus fairly convincing. I don’t agree with their conclusions, but I do respect the guts and determination involved in publishing these ideas.

Cameron has written a series of articles about our new paper and about all those ‘Caddy’ reports: part 1 is here, then there’s part 2a, part 2b, part 3, part 4 and part 5. For various Tet Zoo articles on ‘sea monster’ mysteries of various kinds, see…

Refs – -

Bauer, A. M. & Russell, A. P. 1996. A living plesiosaur?: A critical assessment of the description of Cadborosaurus willsi. Cryptozoology 12, 1-18.

Bousfield, E. L. & LeBlond, P. H. 1995. An account of Cadborosaurus willsi, new genus, new species, a large aquatic reptile from the Pacific coast of North America. Amphipacifica 1 (Supplement 1), 1-25.

Ellis, R. 1996. Monsters of the Sea. Alfred A. Knopf (New York).

LeBlond, P. H. & Bousfield, E. L. 1995. Cadborosaurus, Survivor from the Deep. Horsdal & Schubart (Victoria, British Columbia).

O’Keefe, F. R. & Chiappe, L. M. 2011. Viviparity and K-selected life history in a Mesozoic marine plesiosaur (Reptilia, Sauropterygia). Science 333, 870-873.

Staude, C. P., & Lambert, P. 1995. Editorial . . . an opposing view. Amphipacifica 1 (Supplement 1), 2.

Woodley, M. A. 2008. In the Wake of Bernard Heuvelmans: An Introduction to the History and Future of Sea Serpent Classification. CFZ Press (Bideford, Devon).

- ., Naish, D., & Shanahan, H. P. 2008. How many extant pinniped species remain to be described? Historical Biology 20, 225-235.

Woodley, M. A., Naish, D., & McCormick, C. A. (2011). A baby sea-serpent no more: reinterpreting Hagelund’s juvenile “cadborosaur” report. Journal of Scientific Exploration, 25, 495-512

Darren NaishAbout the Author: Darren Naish is a science writer, technical editor and palaeozoologist (affiliated with the University of Southampton, UK). He mostly works on Cretaceous dinosaurs and pterosaurs but has an avid interest in all things tetrapod. He has been blogging at Tetrapod Zoology since 2006.

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Follow on Twitter @TetZoo.

The views expressed are those of the author and are not necessarily those of Scientific American.





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  1. 1. Jerzy New 7:46 am 09/26/2011

    Some of those armored sea monsters might be sturgeon or very damaged sturgeon.

    As of died specimens, characteristic is that no bones are ever preserved. Given lack of bones, it must be invertebrate animal. Since this invertebrate was clearly in parallel evolution to giant fish and reptiles in environment lacking these, it must have evolved outside Earth. I guess it was exotic pet flushed to the toilet by visiting Grey Aliens, as it outgrew its tank. ;)

    Link to this
  2. 2. Cameron McCormick 8:45 am 09/26/2011

    The other day I was startled to see how Hagelund specimen-like an Inshore Lizardfish (Synodus foetens) managed to be – it had a long body with roughly similar coloration and large scales, a raised head, big eyes, pectoral fins sticking out with the others (dorsal, anal, pelvic) folded and unnoticeable or overlapping (caudal). It of course lives in the wrong ocean, no similar species appear to live in the PNW, and was doing all this on the bottom. Phew.

    By the way, Jerzy, we did include a Green Sturgeon (Acipenser medirostris), but it wasn’t a great match, mostly on account of those fins being hard to hide.

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  3. 3. Dartian 9:15 am 09/26/2011

    Darren: “we went through several different rounds of review, in one case getting rejected from an august journal simply because cryptozoology is mostly nonsense and hence our analysis must be nonsense too

    It’s nice to get that kind of constructive criticism from the reviewers, isn’t it?
    /sarcasm

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  4. 4. DaleD 9:31 am 09/26/2011

    Hello to Darren and Lord Geekington!

    There are several people that I have talked to that do like the theory that some Sea-serpent reports are gigantic pipefishes, but the only major work that has been done on that score links Australian “Rainbow serpents” depictions to pipefish anatomy. Still, many people have a “Gut feeling” that the theory must “Have something to it”.

    I do think in this instance you have come up with by far the best explanation for this specific case. Cudos to you. Not all “Cadborosaurus” sightings are the same or should be expected to have the same creature at the base, but the “Baby Cadborosaurus” and the carcass pulled from a whale’s innards are particularly bad models to erect a type on, particularly for the reason that they match the majority of the other reports so little and so badly.

    Best Wishes, Dale D.

    Link to this
  5. 5. David Marjanović 6:42 pm 09/26/2011

    I hope you sent the pdf to the editors of the august journal.
    How big are pipefish (and the animal in question)?

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  6. 6. Cameron McCormick 7:18 pm 09/26/2011

    David – the Hagelund specimen was reportedly 16 inches (40 cm) long, including the tail. The Bay Pipefish (Syngnathus leptorhynchus) is commonly listed at 33 cm TL maximum, with some sources enigmatically adding “or more”. It does not seem uncommon for unpopular fishes to exceed the commonly given maximum sizes, and of course size can’t be treated literally in a fish story recalled after nearly a couple decades.

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  7. 7. Jerzy New 8:48 pm 09/26/2011

    @Cameron McCormick
    Hi, damaged, sick or decomposing sturgeons may have no fins. One needs to check how sturgeon decomposes – luckily there is a noble freak who decomposes animal carcasses around ;)

    Seriously, particular thing about some “sea monster carcass” incidents is that nobody had an idea to prepare skull or bones, or they positively lacked skeleton. Even the weirdest dead vertebrate should have skeleton inside, right? More likely they are rotting algae, rubber or similar man-made material long decomposing is sea water, bits of whale blubber etc.

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  8. 8. naishd 4:29 am 09/27/2011

    Thanks to all for comments (and thanks to Cameron for fielding the answers… I was kinda busy yesterday). Jerzy: as usual I might recommend that you read the research you’re commenting on before making assumptions :) However, I agree with you that sturgeons need consideration as goes some ‘sea monster’ carcasses. As for what you say in comment # 7: some ‘carcasses’ do lack bones (those increasingly labelled ‘globsters’); this is because they are amorphous lumps of whale tissue. As for the others, I don’t think they lack bones at all – I just think that people are stupid, and not interested enough to collect and retain any parts of the carcasses (after all, the average person is revolted by decomposing animals and sees no value in the retaining of an animal’s bones). So, people see carcass, report story to local media, carcass gets washed away/broken down.

    Darren

    Link to this
  9. 9. DaleD 7:13 am 09/27/2011

    There is a yes-and-no answer to the part about the bones: in most of the cases where there is any mention of bones at all, the bones are cartiliginous and the creatures are actually sharks (Although sturgeon skeletons have cartiliginous skeletons, too)-and the bones rot away soon after the rest of the carcass does, with nothing left to show its passage. Sometimes the bones are preserved, they are made up of cartilage and they typically come from basking sharks. However, the same arguments about the cartilage rotting away and leaving nothing also applies to potentially-sturgeon freshwater monsters inland, and this has been stated as a factor in the favor of considering sturgeons as explaining freshwater monster sightings.

    The Wikipedia gives the length of most pipefish species as 35-40 cm, and the specimen in question is stated to be about 40 cm.

    Best Wishes, Dale D.

    Link to this
  10. 10. Jerzy New 9:26 am 09/27/2011

    Evil, evil, evil Naish! You just made me waste my precious time again. ;)

    Thanks to a reminder to read articles. I still think that original account fits little sturgeon better than pipefish, with “seal-like head”, that is broad head, presence of two jaws and presence of whiskers on face.

    http://www.sturgeon-web.co.uk/treatments.php

    And if you go to above webpage, you see a picture of sturgeon from above very much reminding of “baby Cadborosaurus” plus an explanation of “fuzzy underside”: fungus disease, which looks like cotton wool on a fish.

    And. thanks to you, I just became a little more educated in diseases of sturgeons. Knowledge brings power, yeah ;)

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  11. 11. Geopelia 4:35 pm 09/27/2011

    How about the Loch Ness Monster?

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  12. 12. Andreas Johansson 4:46 pm 09/27/2011

    How about the Loch Ness Monster?

    Ropenine gorgonopsid with a bad case of hydrophilia.

    Link to this
  13. 13. naishd 5:45 pm 09/27/2011

    Now that’s more like it. Where were you in the guess-the-monkey comment thread?

    Darren

    Link to this

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