380 —_Storer’s Synopsis of the Fishes of North America. 
8. Eleotris mugiloides, Cuv. 
Blackish brown ; bands or series of black spots upon the fins ; upon the dorsal there are 
six or seven rows arranged obliquely ; there are three or four rows upon the anal towards its 
base, and eight or nine upon the caudal. The extremities of the rays of the second dorsal 
and anal, whitish. Height, at the origin of the dorsal, one fourth its length ; thickness half 
its height. The number of scales in a longitudinal line upon the side not more than thirty- 
five ; in a vertical line, rarely more than twelve. 
D.7,1-8. P.14. V.1-5. A.1-9o0r10. C.15. Length, 7 inches. 
Caribbean Sea, Cuv. 
Called ‘‘ Mulet,’’ at Martinique. 
Scizna maculata, Biocu, p. 299. 
L’Eléotris mulet, Eleotris mugiloides, Cuv. et VaL., xt. p. 226. 
4. Eleotris smaragdus, Cuv. 
More elongated than any other of the genus. Deep brown, slightly gray beneath; fins 
paler; browner points upon the dorsal rays. Height one tenth its length. The first dorsal 
has only very delicate rays. None of the three vertical fins exceed the height of the body. 
Scales very small. 
D.6-16. P.(?). V.(?). A-1-9. C.(?). Length, 5 to 8 inches. 
Gulf of Mexico, Cuv. 
Called ‘‘ Esmeralda negro,’’ at Cuba. 
L’Eléotris émeraude, Eleotris smaragdus, Cuy. et VaL., xu. p. 231. 
5. Eleotris sima, Cuv. 
The whole body greenish or blackish ; fins gray, with russet dots upon the rays. Snout 
obtuse. Lower jaw the longer. Thirty-two rows of scales upon the sides. The excretory 
milt orifice is situated before the genital papilla. 
D.8-9. P.14. V.1-5. A.10. C.15. Length, 3 inches. 
Mexico, Cuv. 
L’Eléotris A museau obtus, Eleotris sima, Cuv. et Vau., x1. p. 232. 
GENUS XII. PHILYPNUS, Cov. 
Differs from the Eleotris in having card-like teeth upon the vomer. 
1. Philypnus dormitator, Cuv. 
Elongated, cylindrical, head depressed. Lower jaw longer. Preopercular angle rounded 
at its entire edge. Back and sides of a deep brown, verging to olive, with large, irregular, 
blackish cloudings. Beneath yellowish. Fins olive; the vertical fins have three or four 
