FISHES OF SINALOA. 451 



narrow, ^-^ width of eye. Interorbital area convex, its 

 width 4^ in head. Nostrils small, the posterior scarcely 

 the larger, separated from the anterior by one diameter. 

 Angle of preopercle scarcely salient, but provided with 

 coarser teeth; a small sharp notch above it. Opercular 

 spine flat and divided into about six teeth at the end. 

 Gill-rakers moderate g-\-iS. Scales moderate, scarcely 

 ctenoid. Dorsal spines low, the outline of the spinous 

 dorsal gently convex, the fourth spine longest, 3 in head. 

 Soft dorsal high, its outline angular, the tenth ray pro- 

 duced, i| in head. Anal fin formed as in Mycteroperca 

 falcata, its seventh ray produced and falcate, i|- in head, 

 its posterior outline concave. Caudal subtruncate, the 

 outer rays slightly produced. Pectoral i^ in head. 



Color plain dark olivaceous, the edges of the fins 

 scarcely darker ; no evident markings on body. 



115. Paralabrax maculatofasciatus (Steindachner). 

 Cabrilla Pinta. 



Rather common at Mazatlan. This is one of the very 

 few northern species which extends its range thus far to 

 the southward. It is found in some abundance about San 

 Diego, and its center of distribution is probably between 

 Mazatlan and San Diego, these two places being the lim- 

 its of its range, so far as now known. 



116. Diplectrum radiale (Quoy & Gaimard). 



This small species is about a foot in length and is gen- 

 erally common on the Coast. It is apparently not very 

 abundant at Mazatlan, the few specimens seen by us be- 

 ing all taken in the Astillero. 



Much cherry red on head and fins in life, sides salmon 

 color, streaks on head greenish. 



