Discovery Channel lists 20 of them, which I will repeat here :
20. Longfin Catshark (Apristurus herklotsi) 12.2 inches
19. Peppered Catshark (Galeus piperatus) 11.8 inches
18. Arabian Catshark (Halaelurus alcocki) 11.8 inches
17. Dwarf Sawtail Catshark (Galeus schultzi) 11.8 inches
16. Fringefin Lanternshark (Etmopterus schultzi) 11.8 inches
15. Ornate Dogfish (Centroscyllium ornatum) 11.8 inches
14. Bristly Catshark (Halaelurus hispidus) 11.4 inches
13. Combtoothed Lanternshark (Etmopterus decacuspidatus) 11.4 inches
12. Lollipop Catshark (Cephalurus cephalus) 11 inches
11. Longnose Pygmy Shark (Heteroscymnoides marleyi) 11 inches
10. Granular Dogfish (Centroscyllium granulatum) 11 inches
9. Pygmy Shark (Euprotomicrus bispinatus) 10.6 inches
8. Broadnose Catshark (Apristurus investigatoris) 10.2 inches
7. Atlantic Ghost Catshark (Apristurus atlanticus) 9.8 inches
6. Spined Pygmy Shark (Squaliolus laticaudus) 9.8 inches
5. African Lanternshark (Etmopterus polli) 9.4 inches
4. Shorttail Lanternshark (Etmopterus brachyurus) 9.4 inches
3. Green Lanternshark (Etmopterus virens) 9 inches
2. Panama Ghost Catshark (Apristurus stenseni) 9 inches
1. Pale Catshark (Apristurus sibogae) 8.27 inches
Well done, Discovery. HOWEVER, they have missed a small shark (that I have found in my research… and I did a LOT of research for this post): let me introduce the aptly named dwarf lantern shark (Etmopterus perryi), which has the maximum length of 8.3 inches.
Because of this, I will discuss both the Pale Catshark and the Dwarf Lantern shark.
Some call it the smallest shark, and I can't blame them since this dogfish shark in the family Etmopteridae, can literally be held in your hand.
I measured my hand out. This thing fits in my hand and I have creepy, small child-sized hands. So you know this is a small shark. Like most deepwater sharks (they hang around 283-439 meters or 928-1,440 feet), little is known about these tiny things, as they have only been seen a handful of times in northern South America near Columbia and Venezuela.
So, like Green Lantern.
As mentioned in the previous lanternshark post I did, the light helps the animal camouflage with the brighter water when in shallower areas to feed, and in darker water, can attract prey.
It also has the characteristics big eyes to see in the...
Because it is very small and very rare, they have no economic value—which is a good thing, seeing how they reproduce slowly. However, there are no species specific fishery data on these animals and no assessment can be done on the population(s).
That’s it. That’s ALL we know about the dwarf lantern shark. And THIS is why the IUCN cannot assess it beyond Data Deficient (DD).
If you were looking for more information on the supposed smallest shark, the Pale Catshark, you are wrong, my friend. IUCN has also noted these little fishies as Data Deficient (DD).
Like, there isn't even a picture for these little guys.
In fact, these deepwater catsharks are SO rare, all we know about them is from one female juvie (who was the 21 cm TL, or 8.27 inches). She was picked up by scientists at around 655 m in the Makassar Straits (between Bornea and Indonesia).
Again, that’s all I have for you. I wish I had more! I would go and interview these little sharks, but I’d have to find one first in order to do so.
You would think I’d appreciate them more, seeing as I can relate with the whole length issue (except it’s called height for humans... and I lack it).
Again, thanks! This one was especially fun!