PKOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 379 



cies. No other specimen of this genus lias been brought from the Pacific 

 coast of tropical America. 



3. Mugil albula L. 



o0932. Four small specimens, each about 5 inches long, from Cape 

 San Lucas. 



4. Mugil brasiliensis Agassiz. 



30933. Three half-grown and numerous young specimens were col- 

 lected in San Jose Eiver, near Cape San Lucas. 



5. Agonostoma nasutum Giinther. 



30934. Five sj^ecimens, the largest about 7 inches long, were collected 

 at San Jose, where they are known as trucha, or trout. These do not 

 differ essentially from the specimens described by Dr. Giinther; the 

 maxillary usually extends slightly beyond front of orbit; head 4^ to 4 J 

 in length (to base of caudal); eye 4^ in head; maxillary not longer than 

 interorbital width, contained 2f to 3;^ times in head; a band of pterygoid 

 teeth often but not always developed ; dorsal spines very strong, not 

 flexible, the origin of the fin nearer snout than tail ; caudal well forked, 

 the middle rays 1^ in outer. 



6. Remora squalipeta (Dald.) J. & G. 

 {Echoieis remora L.) 



30941. A single specimen, 6 inches long, from San Jos^. 



7. Centropomus robalito Jor. & Glib. 



30940. Two small specimens, 3J inches long, were obtained at San 

 Jose. 



8. Gobius banana Cuv. & Val. 



30935. Color light olivaceous, back and sides blotched and shaded 

 with dark brown ; a series of irregular roundish blotches along middle 

 of sides; narrow black streaks radiating from eye, two of these running 

 downwards and forwards to mouth, and oue backwards to upper pre- 

 opercular angle, with a similar i^arallel streak below it; a black streak 

 running across upper margin of opercle, and extending on base of upper 

 pectoral rays; dark markings on back, sometimes forming more or less 

 distinct cross-bars; belly vfhite; ventrals and anal immaculate; other 

 fins all more or less distinctly barred with wavy black lines. 



Head 3f in length ; depth 5§. D. VI-11 ; A. I, 10 ; scales Cl-21. 



Body subfusiform, long and low, scarcely or but little cou)i)ressed. 

 Head long and low, slender, much narrowed anteriorly, its greatest 

 breadth but little more than its greatest depth, and 1^ in its length ; 

 cheeks scarcely tumid; snout long, low, 2| in head, the profile very little 

 curved. Upper jaw very protractile; lips thick; mouth low, narrow, 

 subterminal, very variable in size, the maxillary from 2^ to 24 in head, 

 sometimes not reaching eye, sometimes to below middle of orbit; lower 



