378 Storer’s Synopsis of the Fishes of North America. 
6. Gobius bacalaus, Cuv. 
The lateral spot more obvious than in the G. lanceolatus, and one still better marked, 
which is often triangular, at the base of the tail. In young specimens, the first dorsal and 
caudal are sometimes each one third its entire length. 
D. (?). P.(?). V.(?) A. (?). C.(2).. Length, (?). 
Gulf of Mexico, Cuv. 
Called ‘‘ Emeralda,’’ in Cuba. 
Le Gobie bacalaou, Gobius bacalaus, Cuv. et VAL., xu. p. 119. 
7. Gobius smaragdus, Cuy. 
Head almost as wide as high. Body and fins of a deep greenish brown, more particularly 
the head; sprinkled with small, yellow, round spots. Its tongue has the same colored base 
as the G. lanceolatus. 
D.6-11. P.16. V 1-5, A.1-11. C.15. Length, 4 inches. 
Gulf of Mexico, Cuv. 
Called ‘‘ Cabezona,’’ in Cuba. 
Le Gobie émeraude, Gobius smaragdus, Cuv. et Vau., x1. p. 120. 
8. Gobius crista galli, Cuv. 
Fawn-color ; the first dorsal black, particularly towards the middle of its margin; the sec- 
ond blackish ; the other fins gray. Numerous brownish points between the rays of the cau- 
dal. ‘Scales Jarge, smaller on the forepart of the back. A small, low membranous crest 
commences between the eyes, and terminates at the neck. 
D.6,1-9. P.18. V.1-5. A.1-8. C.15. Length, 24 inches. 
Gulf of Mexico,:Cuv. 
Called ‘‘ Mapo,’’ in Cuba. 
Le Gobie 4 créte de coq, Gobius crista galli, Cuv. et Vau., xu. p. 130. 
GENUS X. SICYDIUM, Cvuv. 
The ventrals form a sort of bell, or round, concave basin, almost equally ad- 
herent throughout. The jaws have a single row of equal, compact, flexible 
teeth, and some stronger teeth within, upon the lower jaw. The teeth are 
somewhat like those of the Salarias ; the ventrals resemble those of the Cy- 
clopterus more than those of the Gobius; but in other respects the fishes 
of this genus resemble the Gobius, with a round tail. 
1. Sicydium Plumieri, Cuv. 
Deep olive, tinged with yellow upon the sides, and whitish towards the belly. Dorsals, 
