Gobiosoma spes (Ginsburg, 1933)


photo by J. Van Tassell
top - male
bottom - female


IDENTIFICATION

Head Pores - Cephalic canal system with pores B',C(s),D,E,F,H' and possible K',L' preopercle with pores M',N'

Scales - 7-14 along caudal peduncle; no modified basicaudal scales; no scales on head or most of body. There are no scales on the base of the caudal fin or the end of the peduncle itself (especially the dorsal and ventral most sections).

Fins - D1 - VII, with elongate filament in males only; D2 - 11-12(10-12); caudal rounded with 17 segmented rays; pectoral 15-16(14-17); anal 10(9-11); pelvic I,5 all rays branched, disk complete with well developed frenum.

Head - No barbels or rostral frenum;

Papillae - A transvers patterns with 3 vertical rows before row b

Color - Males, particularly adults, are rather uniformily dark, at least at first glance,little paler below than above. The head, particularly in the breeding seaon (?) is blackish. The ventral and vertical fins are blackish with pale markings above in the form of numerous spots and vermiculations which are apparent on females. Females have the belly and ventral fins whitish and the vertical fins distinctly mottled or barred. Most have five bands across the back and upper sides, the first across the nape, the second and third through the anterior and posterior base of the spinous dorsal, the fourth under the middle and the fifth under the posterior rays of the second dorsal fin. A final dark bar occurs along the caudal base. Some males have this barred pattern but it is more subdued. (B&R 68)

Distribution - Puerto Rico, Jamaica, Costa Rica, Panama and Venezuela (near Maracaibo)

Habitat - coast bays and lagoons

Notes -