John Conway, CM Kosemen, Darren Naish
Cryptozoologicon, The Biology, Evolution and Mythology of Hidden Animals, Volume I
(Irregular Books, 2013)

This is strange book. It is one I wanted to read and I was given a copy for Christmas. It sounded as if it would be interesting.
What the authors set out to do, and they are up front about stating this, is to look at some of the myths of strange animals unrecorded by science and then to look at how plausible the myths are and what the animal might be. They write a couple of pages about each of the 28 creatures they choose. All of which is fine, if eccentric.
What they then go on to do is to speculate wildly about history, evolution and taxonomy of each creature as if it were real. They do say repeatedly that what they are indulging in is speculation, but they acknowledge that it will be misinterpreted by the wilfully minded.
As they say on the cover blurb:

Cryptozoologicon is a celebration of the myths, legends, evolution and biology of hidden animals. Always sceptical, but always willing to indulge in speculative fun, Cryptozoologicon aims to provide a new way to approach cryptozoology: as fictional biology.

And in their Introduction:

For each cryptid, our entries consist of three sections. We consider it important that people understand exactly what we have done. In the first section of text, we briefly review what people have said beforehand about the given cryptid. We refer to the key accounts and describe what the creature is supposed to look like.
In the second section, we present an evaluation of the reports, make a conclusion about the identity of the given cryptid, and decide whether the accounts refer to a real creature or not. Given that we have included quite a range of mystery animals in our book — some of which are fairly ridiculous and others of which have essentially been debunked — our conclusions range from the open-ended to the “case closed” type.
Finally, we include a third section of text in which we deliberately jump onto the bandwagon of speculation, and wax lyrical about the identity, evolution and biology of the cryptid concerned, tongue firmly planted in cheek.

Yeah, “fictional biology” is about the size of it. I had hoped that it might present some interesting new evidence for something. It doesn’t.
And I had hoped that even if it didn’t the book might be amusing. It isn’t that either.
I found it tedious beyond belief. There is nothing here except a regurgitation of the already known myths and their debunking with some wildly speculative and very tedious fiction. The text is extremely dull; not especially poorly written just unimaginative and not sparkling. On top of that I dislike the large colour illustrations; that’s down to their style rather than content; for me they didn’t add a great deal.
The book could, indeed should, have been interesting; and this could have been done with very little extra effort.
For me this book just didn’t work. I found it incredibly tedious and in fact gave up reading attentively no more than half way through and skipped through the remainder.
Unless you have to read this book for some reason, frankly I’d give it a miss.
Overall Rating: ★☆☆☆☆