Ecsenius

Victor G. Springer & Gerald R. Allen, 2004, Ecsenius caeruliventris and E. shirleyae, two new species of blenniid fishes from Indonesia, and new distribution records for other species of Ecsenius., Zootaxa 791, pp. 1-12 : 3

[[ Ecsenius ]]

Key to the species of the Prooculis group

1 Two linearly arranged dark spots present on side of abdomen .................. bimaculatus

- No dark spots on abdomen ........................................................................................... 2

2 Two linear rows of dark spots on body at least in area ventral to segmented-ray portion of dorsal fin .................................................................................................................. 3

- No rows of dark spots on body .................................................................................... 4

3 Black stripe extending posteriorly from orbital margin across opercle; one to three fine dark vertical bands present or absent on body anterior rows of dark spots ...... randalli

- No black stripe extending posteriorly from orbital margin; dark spot present dorsally on opercle; no dark vertical bands on body ....................................................... collettei

4 Body with pale stripes alternating with broader dark stripes ....................................... 5

- Body without distinctive markings .............................................................................. 6

5 Pale stripes narrow, depth much less than one-fourth orbital diameter; dorsal pale stripe on body at or dorsal to level of lateral line; ventral pale stripe on body midline; dusky spot on post-orbital margin indistinctly, if at all, leading to stripe across head ... ......................................................................................................................... taeniatus

- Pale stripes deeper, about one-third orbital diameter; dorsal pale stripe on body ventral to level of lateral line; ventral pale stripe on body ventral to body midline; dusky stripe extending posteriorly from orbital margin across head ................................... prooculis

6 No dark stripe extending posteriorly from orbital margin across head (a dark spot may be present on postorbital margin) ............................................................. caeruliventris

- Dark stripe extending posteriorly from orbital margin across head ............................. 7

7 Dark stripe on head narrower (Figures 1d, 2b), bordered ventrally by pale white stripe in life; in life, stripes in interorbital area and iris of eye white or faintly tinged with yellow .......................................................................................................................... shirleyae

- Dark stripe on head deeper (Figures 1e, 2d), bordered dorsally and ventrally by bright yellow in life; in life, stripes in interorbital area and iris of eye bright yellow ............... ......................................................................................................................... bandanus