Lythrypnus

Lythrypnus is a genus of gobies native to the Atlantic and Pacific coasts of the Americas including Cocos Island and the Galapagos Islands. Lythrypnus is a hermaphroditic fish that is able to change sex. Depending on its size and shape, Lythrypnus Dalli is able to have both male and female reproductive function.

Lythrypnus
Bluebanded Gobies Lythrypnus dalli, San Clemente Island, Channel Islands, California.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Gobiiformes
Family:	Gobiidae
Genus:	Lythrypnus D. S. Jordan & Evermann, 1896
Type species
Gobius dalli C. H. Gilbert 1890

Species

There are currently 20 recognized species in this genus:^[1]

• Lythrypnus alphigena W. A. Bussing, 1990
• Lythrypnus brasiliensis D. W. Greenfield, 1988
• Lythrypnus cobalus W. A. Bussing, 1990
• Lythrypnus crocodilus (Beebe & Tee-Van, 1928) (Mahogany goby)
• Lythrypnus dalli (C. H. Gilbert, 1890) (Bluebanded goby)
• Lythrypnus elasson J. E. Böhlke & C. R. Robins, 1960 (Dwarf goby)
• Lythrypnus gilberti (Heller & Snodgrass, 1903) (Galapagos blue-banded goby)
• Lythrypnus heterochroma Ginsburg, 1939 (Diphasic goby)
• Lythrypnus insularis W. A. Bussing, 1990 (Distant goby)
• Lythrypnus lavenbergi W. A. Bussing, 1990
• Lythrypnus minimus Garzón & Acero P., 1988 (Pygmy goby)
• Lythrypnus mowbrayi (T. H. Bean, 1906)
• Lythrypnus nesiotes J. E. Böhlke & C. R. Robins, 1960 (Island goby)
• Lythrypnus okapia C. R. Robins & J. E. Böhlke, 1964 (Okapi goby)
• Lythrypnus phorellus J. E. Böhlke & C. R. Robins, 1960 (Convict goby)
• Lythrypnus pulchellus Ginsburg, 1938 (Gorgeous goby)
• Lythrypnus rhizophora (Heller & Snodgrass, 1903) (Spotcheek goby)
• Lythrypnus solanensis Acero P., 1981
• Lythrypnus spilus J. E. Böhlke & C. R. Robins, 1960 (Bluegold goby)
• Lythrypnus zebra (C. H. Gilbert, 1890) (Zebra goby)