Key to the eastern Pacific species of Chriolepis
by J. Van Tassell
modified from Findley 1983

1a

Scales on body restricted to caudal peduncle; first two spines of D1 in males generally prolonged; male with a longitudinal low fleshy "gular ridge" between mandibles ................................................................................................... minutillus

1b

Scales on body extending at least to below origin of second dorsal fin; first two dorsal spines not prolonged; "gular ridge" absent............................................................... 2

2a

Scales on body extending forward to at least under origin of D1; dorsal body scales extending to at least the last two spines of D1...........................................................3

2b

Scales on body reaching, at most, to under spine 2 or 3 of D1; no scales at dorsal midline under D1.......................................................................................................... 4

3a Pelvic fin rays reaching anus or slightly past; maxilla extending to no more than under middle of pupil; D2 with 10(rarely 11) rays; pectoral 15-17 rays; 8-9 gill rakers on first arch; 24-29 scales in lateral series ; no dark spots on lateral or ventral surface of head.......................................................................................................................... sp. S
3b

Pelvic fin rays not reaching anus; maxilla extending to below middle of pupil or beyond; D2 with 11 rays; pectoral with 20 rays; 11 gill rakers on first arch; 34-35 scales in lateral series; several dark spots on lateral and ventral surface of head................................................................................................................ lepidotus

4a D2 with 12 rays; anal 11 rays................................................................................... tagus
4b D2 with 10-11 rays; anal generally 10, rarely 9 or 11................................................ 5
5a Body with distinct narrow dark bands; distinct dark crescent band at base of caudal fin; caudal fin lanceolate; D2 with generally 10 rays................................................... 6
5b Body mottled and drab or with indistinct wide bands; no band at base of caudal fin or if present, indistinct and not crescent shaped; caudal fin rounded or elongate; D2 with generally 11 rays.............................................................................................................. 7
6a

Body with 7-8 bands; crescent band at base of caudal fin narrow, its width equal to or less than eye diameter; caudal fin with 3-5 thin wavy dark bands ..................... zebra

6b Body with 5-6 bands; crescent band at base of caudal fin wide, greater than eye diameter; no bands on caudal fin ...................................................................... cuneata
7a Maxilla extending to under posterior margin of eye; fourth pelvic ray longer than 5th ray; gill rakers on first arch generally 9-10; pectoral rays 17-18 (rarely 19); caudal fin long..............................................................................................................................sp. H
7b Maxilla extending to under posterior of pupil, at most; 4th pelvic ray shorter than 5th ray; gill rakers on first arch 12-13 (rarely 11 or 14); pectoral fin with 19-20 (rarely 17 or 21) rays; caudal fin short ....................................................................... dialepta

 

 

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