A new species of fish has been named after President Barack Obama

Etymology: Etheostoma: Greek, etheo = to strain + Greek, stoma = mouth; 

A new species of fish has been named after President Barack Obama by the researchers who discovered it. The freshwater fish has distinctive bright orange and blue colours and is generally found in fast-flowing rivers around America. It is one of five new species of darter - the smallest member of the perch family - to be discovered in recent months. This species is one of five distinct species were named after former U.S. presidents and a vice-president, based on their leadership in conservation. E. obama was named after Barack Obama, for his work "particularly in the areas of clean energy and environmental protection, and because he is one of our first leaders to approach conservation and environmental protection from a more global vision," according to one of the scientists, Steve Layman, who named the new species

Etheostoma obama  Mayden & Layman, 2012

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Percidae (Perches) > Etheostomatinae

Rafinesque said "various mouths", but Jordan and Evermann suggest the name might have been intended as "Heterostoma;  obama: Named for President Barack Obama, United States of America, for his environmental leadership, particularly in the areas of clean energy and environmental protection, and also for being one of the first leaders to approach conservation and environmental protection from a more global vision; noun in apposition.

Dorsal spines (total): 10 - 14; Dorsal soft rays (total): 10-13; Anal spines: 2; Anal soft rays: 8 - 11. This breeding male of this species (under the subgenus Doration) is distinguished by the following characters: a spinous dorsal fin with blue marginal and submedial bands, orange medial band, basal band with bright orange pigment; the soft dorsal, caudal, and pectoral fins have distinct bright orange spots on rays; soft dorsal and anal fins with blue in base of fin; anal fin sometimes with orange spots or streaks on rays; the face and lower head tangerine orange with blue on operculum, preoperculum, cheek, and suborbital bar (but not on lips and mid-gular region); quadrate lateral blue blotches extending ventrad from lateral line scale row; the basicaudal blue bar extending from dorsal to ventral margin of caudal fin; no frenum; incomplete lateral line, unpored scales modally >10 (12); cheek partially scaled; palatine teeth usually absent; present in 29% of specimens; modal counts for D XII-XIII,12, A 9, pectoral fin 15, principal caudal 15, caudal peduncle scales 16, preoperculomandibular canal pores 10; allozyme products of sIdh-A locus are characterized by relative mobilities b, e, and g. 

Distribution: North America: United States of America (Tennessee).