Terelabrus, Randall & Fourmanoir, 1998

Fukui, Yoshino, 2018, A new species of Terelabrus (Perciformes: Labridae) from the Philippines with a key to species of Terelabrus and new record of Terelabrus dewapyle, Zootaxa 4526 (1) : -

Key to species of Terelabrus

1a Scale rows in longitudinal series 41 or 42 (mode 41); pored lateral-line scales 39 or 40 (mode 39); space between upper and midlateral red stripes vivid yellow when fresh........................... Terelabrus dewapyle Fukui & Motomura 2015

1b Scale rows in longitudinal series>44; pored lateral-line scales>42; space between upper and midlateral red stripes white when fresh................................................................................................ 2

2a Gill rakers 14–15; main supratemporal sensory canal with 4–5 branches posteriorly; area bounded by main supratemporal and postotic sensory canals (dorsal view) with 4 scale rows; least distance between anteroventral margin of orbit and maxilla 0.5– 2.3% (mean 1.6%) of SL; about 10 superimposed red blotches protruding onto midlateral red stripe when fresh............................................................................. T. rubrovittatus Randall & Fourmanoir 1998

2b. Gill rakers 11–13; main supratemporal sensory canal with>8 branches posteriorly; areas bounded by main supratemporal and postotic sensory canals (dorsal view) with ±3 scale rows; no superimposed red blotches protruding onto midlateral red stripe when fresh........................................................................................... 3

3a. Area bounded by main supratemporal and postotic sensory canals (dorsal view) with embedded scales; least distance between ventral margins of orbit and interopercle 4.5 % of SL; dorsal and ventral series of caudal-procurrent rays both 7; predorsal bone small; vivid yellow stripe extending from below anterior margin of orbit to preopercle and vivid yellow blotch or band on lower opercle when fresh; distinct black stripe from center of upper lip to opercular margin through eye in preserved specimens................................................................... T. flavocephalus Fukui & Motomura 2016

3b Area bounded by main supratemporal and postotic sensory canals (dorsal view) with 3 scale rows; least distance between ventral margins of orbit and interopercle 7.0 % of SL; dorsal and ventral series of caudal-procurrent rays both 9; predorsal bone large; black blotch on opercle and 18 faint silver vertical bands on body (preserved specimens).......... T. zonalis sp. nov.