Recently I had a slight adventure trying to identify an odd leather hide, and I thought it might be useful to start a relatively organized, definitive Exotic Hide Identification (EHI) thread here. We've had numerous threads in the past devoted to single items, but I thought one thread might be a good resource for members who find random, unique things. We all know what gator or ostrich looks like... but what about porpoise? Seal? Moose? Hippo? Elephant?
A few of the pics are my own, and others I found on the interwebz.
I'll start with several unique hides:
Walrus Skin (tricheco):

NOTE: other areas from the walrus have a more grained/"rougher" hide. I'm not sure which part of the animal the above hide comes from... but given the prominent follicles, maybe the softer underbelly area? not sure.
For example, see here (has a very different appearance, grain, etc.)

Hippopotamus:
Thick lines, similar to course adult bull hide, but thicker/gnarlier. I've seen it both as a regular leather, and "sueded":


Elephant:
Also thick lines, but depends on the area of the animal from which it comes. Tends to have tiny pockmarks all over the surface, instead of smoother skin beneath the wrinkles.


Elephant and sharkskin wallets (my own pics):

Sea Turtle:

Looks at first like a "cross" between alligator and snake. But, in person, the scales tend to be smaller than alligator. I've seen wallets and shoes in this hide in Japan; they're quite lovely but look rather delicate (the wallets I've seen tend not to age well, IMHO.)
Emu:
Like ostrich, only the quill is over the whole body, and the follicles are smaller. The hide is slightly rougher looking than ostrich.

Shark:
I tend to mistake this one a lot for hippo, walrus, seal, etc. A very thick, sturdy, gnarly sort of hide. Very tough. They used to cover the handles of samurai swords in this stuff. Very unique in person, but not particularly "elegant" for smaller leather goods.

Lizard:


What others? Feel free to post individual items in various hides.
Others I've seen, that others can add if they wish: Fish leather (salmon, etc.), Chicken, slink (fetal calf), stingray, water buffalo.
A few of the pics are my own, and others I found on the interwebz.
I'll start with several unique hides:
Walrus Skin (tricheco):

NOTE: other areas from the walrus have a more grained/"rougher" hide. I'm not sure which part of the animal the above hide comes from... but given the prominent follicles, maybe the softer underbelly area? not sure.
For example, see here (has a very different appearance, grain, etc.)

Hippopotamus:
Thick lines, similar to course adult bull hide, but thicker/gnarlier. I've seen it both as a regular leather, and "sueded":


Elephant:
Also thick lines, but depends on the area of the animal from which it comes. Tends to have tiny pockmarks all over the surface, instead of smoother skin beneath the wrinkles.


Elephant and sharkskin wallets (my own pics):

Sea Turtle:

Looks at first like a "cross" between alligator and snake. But, in person, the scales tend to be smaller than alligator. I've seen wallets and shoes in this hide in Japan; they're quite lovely but look rather delicate (the wallets I've seen tend not to age well, IMHO.)
Emu:
Like ostrich, only the quill is over the whole body, and the follicles are smaller. The hide is slightly rougher looking than ostrich.

Shark:
I tend to mistake this one a lot for hippo, walrus, seal, etc. A very thick, sturdy, gnarly sort of hide. Very tough. They used to cover the handles of samurai swords in this stuff. Very unique in person, but not particularly "elegant" for smaller leather goods.

Lizard:


What others? Feel free to post individual items in various hides.
Others I've seen, that others can add if they wish: Fish leather (salmon, etc.), Chicken, slink (fetal calf), stingray, water buffalo.















It looks very very robust (for some reason don't ask me why) My small contribution below is an alligator leather strap from my recently purchased Longines watch. I'll look up what kind of alligator it actually is.














