Scopelarchus analis
Scopelarchus analis, the short fin pearleye, is a species of fish that can be found circumglobal in warm waters.[1] It is a member of the Scoperlarchus, a genus of pearleyes.
| Scopelarchus analis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Aulopiformes |
| Family: | Scopelarchidae |
| Genus: | Scopelarchus |
| Species: | S. analis |
| Binomial name | |
| Scopelarchus analis (Brauer, 1902) | |
| Synonyms | |
|
Dissomma anale Brauer, 1902 | |
Size
This species reaches a max length of 12.6 cm (4.96 in).[2]
Biology
It has a unique cylindrical eye that it is directed dorsally. This allows the fish to gain a binocular view of the water column above.[3] The fish also possesses a unique adaptation where it has multiple retinae. The primary retina is located at the base of the cylinder, an accessory retina along the nasal wall, and between the two is a retinal diverticulum.[3]
References
- Davis, Matthew P. (March 2015). "Evolutionary Relationships of the Deep-Sea Pearleyes (Aulopiformes: Scopelarchidae) and a New Genus of Pearleye from Antarctic Waters". Copeia. 103 (1): 64–71. doi:10.1643/CI-14-139. ISSN 0045-8511.
- Johnson, Robert Karl (1974). "Five New Species and a New Genus of Alepisauroid Fishes of the Scopelarchidae (Pisces: Myctophiformes)". Copeia. 1974 (2): 449–457. doi:10.2307/1442536. ISSN 0045-8511.
- Pointer, Marie A.; Carvalho, Livia S.; Cowing, Jill A.; Bowmaker, James K.; Hunt, David M. (2007-08-15). "The visual pigments of a deep-sea teleost, the pearl eye Scopelarchus analis". Journal of Experimental Biology. 210 (16): 2829–2835. doi:10.1242/jeb.006064. ISSN 1477-9145.
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