Coryogalops

Kovačić, Marcelo, Bogorodsky, Sergey V. & Mal, Ahmad O., 2016, A new species of Coryogalops (Perciformes: Gobiidae) and the first adult record of Feia nympha from the Red Sea, Zootaxa 4097 (3), pp. 341-352 : 343-344

Key to the species of Coryogalops , adapted from Kovačić et al. (2014)

1a Pelvic fins separate........................................ C. anomolus (western Indian Ocean including Red Sea)

1b Pelvic fins united, forming pelvic disc..................................................................... 2

2a Upper margin of orbit with prominent tentacle.................................... C. bulejiensis ( Oman to Pakistan)

2b No tentacle on upper margin of orbit...................................................................... 3

3a Prepectoral area scaled.................................................... C. sordidus (eastern coast of Africa)

3b Prepectoral area naked................................................................................. 4

4a Head and body mostly uniform dark brown with indistinct bars on body; a large dark blotch dorsally on pectoral-fin base......................................................................... C. bretti ( Mauritius and South Africa)

4b Colour not as above.................................................................................... 5

5a A large dark maroon or black spot on basal part of first 2 or 3 membranes of first dorsal fin........................... 6

5b No black blotches or spots on membranes of first dorsal fin.................................................... 7

6a Longitudinal scale series 38–39; transverse scale rows 16; pectoral-fin rays 19; black spot larger than pupil on first dorsal fin covering first two membranes, extended downwards as brown oblique band at third membrane to base of fin............................................................................. C. monospilus (Arabian Gulf)

6b Longitudinal scale series 33–35; transverse scale rows 9; pectoral-fin rays 16–17; first dorsal fin with a nearly square, dark maroon blotch, larger than pupil, basally on second and third membranes, linked with first spine by a short dark band across the first membrane..................................................... C. pseudomonospilus (northern Red Sea)

7a Pectoral-fin rays 12–14; head and body with small scattered orange-yellow spots, those in predorsal area containing melano- phores; internal row of small white spots along ventral midline of body above anal fin and on caudal peduncle........................................................................................... C. nanus sp. nov. (Red Sea)

7b Pectoral-fin rays 15–23; coloration not as above............................................................. 8 8a Longitudinal scale series 34–46; pectoral-fin rays 19–23 (usually 21–22); free rays in pectoral fin 5–8; two broad transverse dark brown bars across nape; first dorsal fin with two oblique, moderately broad, dark bands; caudal-fin base with a dark brown arc............................................................................................ 9 8b Longitudinal scale series 26–35; pectoral-fin rays 15–19; free rays in pectoral fin 2–3; no bars across nape; no bands present in first dorsal fin, if present bands narrow; triangular dark mark may be visible on caudal-fin base...................... 10 9a Dorsal-fin rays VI + I,12–13; longitudinal scale series 38–46; eye diameter 3.6–3.8 in head length.......................................................................................... C. adamsoni (Arabian Gulf to Pakistan) 9b Dorsal-fin rays VI + I,10–11; longitudinal scale series 34–36; eye diameter 4.0– 4.1 in head length......................................................................................... C. william ( Mozambique to South Africa) 10a Dorsal-fin rays VI + I,12; pelvic disc weakly emarginate; numerous scales of lower half of body covered with dark orange spots........................................................................ C. guttatus (southern Red Sea) 10b Dorsal-fin rays VI + I,10–11; pelvic disc elliptical; scales of lower half of body without dark orange spots.............. 11 11a Transverse scale rows 11; side of body with narrow midlateral stripe of alternating double white and black spots; scales ventrally on body with dark brown edge.................................. C. tessellatus (Arabian Gulf to central Oman) 11b Transverse scale rows 8–10; no midlateral stripe visible; scales ventrally on body outlined with dark orange

........................................................................... C. ocheticus (northern Red Sea)