Ecsenius

Ecsenius is a large genus of fish in the family Blenniidae. Several species, including Ecsenius midas, the Midas blenny, and Ecsenius bicolor, the bicolor blenny, are commonly sold at aquarium stores as pets.

Species
There are currently 53 recognized species in this genus:
 * Ecsenius aequalis V. G. Springer, 1988 (Fourline blenny)
 * Ecsenius alleni V. G. Springer, 1988
 * Ecsenius aroni V. G. Springer, 1971 (Aron's blenny)
 * Ecsenius australianus V. G. Springer, 1988 (Australian blenny)
 * Ecsenius axelrodi V. G. Springer, 1988 (Axelrod's clown blenny)
 * Ecsenius bandanus V. G. Springer, 1971 (Banda comb-tooth)
 * Ecsenius bathi V. G. Springer, 1988 (Bath's comb-tooth)
 * Ecsenius bicolor (F. Day, 1888) (Bicolor blenny)
 * Ecsenius bimaculatus V. G. Springer, 1971
 * Ecsenius caeruliventris V. G. Springer & G. R. Allen, 2004 (Bluebelly blenny)
 * Ecsenius collettei V. G. Springer, 1972 (Collete's blenny)
 * Ecsenius dentex V. G. Springer, 1988
 * Ecsenius dilemma V. G. Springer, 1988
 * Ecsenius fijiensis V. G. Springer, 1988
 * Ecsenius fourmanoiri V. G. Springer, 1972
 * Ecsenius frontalis (Valenciennes, 1836) (Smooth-fin blenny)
 * Ecsenius gravieri (Pellegrin, 1906) (Red Sea mimic blenny)
 * Ecsenius isos McKinney & V. G. Springer, 1976
 * Ecsenius kurti V. G. Springer, 1988
 * Ecsenius lineatus Klausewitz, 1962 (Linear blenny)
 * Ecsenius lividanalis W. M. Chapman & L. P. Schultz, 1952 (Blue-head combtooth-blenny)
 * Ecsenius lubbocki V. G. Springer, 1988 (Lubbock's combtooth-blenny)
 * Ecsenius mandibularis McCulloch, 1923 (Queensland blenny)
 * Ecsenius melarchus McKinney & V. G. Springer, 1976 (Yellow-eyed comb-tooth)
 * Ecsenius midas Starck, 1969 (Persian blenny)
 * Ecsenius minutus Klausewitz, 1963
 * Ecsenius monoculus V. G. Springer, 1988
 * Ecsenius nalolo J. L. B. Smith, 1959 (Nalolo)
 * Ecsenius namiyei (D. S. Jordan & Evermann, 1902) (Black comb-tooth)
 * Ecsenius niue V. G. Springer, 2002
 * Ecsenius oculatus V. G. Springer, 1988
 * Ecsenius oculus V. G. Springer, 1971 (Ocular blenny)
 * Ecsenius ops V. G. Springer & G. R. Allen, 2001
 * Ecsenius opsifrontalis W. M. Chapman & L. P. Schultz, 1952 (Comical blenny)
 * Ecsenius pardus V. G. Springer, 1988
 * Ecsenius paroculus V. G. Springer, 1988
 * Ecsenius pictus McKinney & V. G. Springer, 1976 (White-lined comb-tooth)
 * Ecsenius polystictus V. G. Springer & J. E. Randall, 1999
 * Ecsenius portenoyi V. G. Springer, 1988
 * Ecsenius prooculis W. M. Chapman & L. P. Schultz, 1952
 * Ecsenius pulcher (J. A. Murray, 1887)
 * Ecsenius randalli V. G. Springer, 1991
 * Ecsenius schroederi McKinney & V. G. Springer, 1976
 * Ecsenius sellifer V. G. Springer, 1988 (Saddle blenny)
 * Ecsenius shirleyae V. G. Springer & G. R. Allen, 2004
 * Ecsenius stictus V. G. Springer, 1988 (Great Barrier Reef blenny)
 * Ecsenius stigmatura Fowler, 1952
 * Ecsenius taeniatus V. G. Springer, 1988
 * Ecsenius tessera V. G. Springer, 1988
 * Ecsenius tigris V. G. Springer, 1988 (Tiger blenny)
 * Ecsenius tricolor V. G. Springer & G. R. Allen, 2001
 * Ecsenius trilineatus V. G. Springer, 1972 (Three-lined blenny)
 * Ecsenius yaeyamaensis (Aoyagi, 1954) (Yaeyama blenny)