264 CALIFORNIA ACADEMY OF SCIENCES. 



stead of being higher than the spinous dorsal and lower 

 than the anal. 



Head 3|, depth 3I in length; dorsal IV— I, 8; anal II, 

 10. Of specimens from Mazatlan, some have the anal II, 

 10, and some III, 9. The lateral line is faintly indicated; 

 scales 6-44-6, 19 before dorsal, extending forward to an- 

 terior margin of pupil. Preorbital serrate on lower edge, 

 the serrae not evident on larger specimens from Mazatlan. 

 Pectoral if in head, not quite equal to distance from nos- 

 tril to margin of opercle. All fins, except the spinous 

 dorsal, have scales on the basal part, and it has an elon- 

 gate accessory scale on each side. The fourth spine of 

 the dorsal is weak. 



3. Mugil albula Linnaeus. La Liza. 



Two specimens, 9 in. long, from fresh water at San Jose 

 del Cabo. Head 4 in length. Scales 38 and 39. Dor- 

 sal and anal scaled on anterior rays only. 



4. Mugil curema Cuvier & Valenciennes. Trucha: 

 Liza. 



Numerous specimens, 1 x / 2 to 8 in. long, from La Paz, 

 and from Rio San Jose, San Jose del Cabo. This and 

 the preceding are marine species, although frequently as- 

 cending rivers. 



5. Eucinostomus californiensis (Gill). La Majarra. 

 One specimen, 4^ in. long, from fresh water at San 



Jose del Cabo. It agrees with specimens from Panama. 

 Dorsal VIII, 9, its longest spine about 1^4 in head; 

 eye 2f in head, longer than snout. 



6. Philypnus lateralis Gill. 



One specimen, 3^ in. long, from fresh water at San 

 Jose del Cabo. 



Dorsal VI-I, 9; anal I, 11. 



