PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 25 



BATRACHIDiE. 



7. Porichthys poroslssimus (C. & V.) Giiutber. 

 Very common. 



BLENNIID^. 



8. Heterostichus rostratus Girard. 



Found in the "kelp" outside the harbor. 



9. Gibbonsea elegans Cooper, 



A sinftle specimen taken in the rock-pools on Point Loma. 



10. Hypleurochilus gentilis (Grd.) Gill. 

 With the preceding, and more common. 



GOBIID^. 



11. Gillichthys mirabilis Cooper. 



Exceedingly abundant in the shallow Abaters of the bay. Only small 

 specimens seen, the maxillary in these being much less developed than 

 in the adult. 



COTTID^. 



12. Leptocottus armatus Girard. 

 Common in the Bay of San Diego. 



13. OUgocottus aualis Grd. 



Allied, but not closely, to Ariedius quadriseriatus Lockington. 

 Body compressed, especially behind, not much depressed anteriorly ; 

 head comparatively small, scarcely depressed, narrowed and rather 

 pointed anteriorly, its outline triangular as viewed from above; snout 

 strongly decurved in profile; mouth moderate, horizontal, the lower 

 jaw included; maxillary reaching to opposite posterior margin of pupil; 

 premaxillarj^ anteriorly beloAv the level of the eye; eyes large, high up, 

 close together, as long as the snout, 3^ in head, their diameter double 

 the "width of the deep interorbital space, which has a deep lengthwise 

 groove; nasal spines iirominent; a doep cross-furrow behind them, which 

 forms with the interocular furrow a V-shaped figure; preopercle with a 

 blunt process, on which is a spine directed upwards and outwards; no 

 scales on the head; no other spines on the head. 



Branchiostegals G. Gill membranes broadly united, without isthmus. 



First dorsal beginning in front of the posterior edge of the opercle, 

 its first two spines fet close together at base, diverging above, and 

 shorter than the third. 



Dorsal fins contiguous, but not united, neither of them specially ele- 

 vated ; pectoral fin reaching beyond front of anal, its lower rays with 

 the skin tliickened, and projecting much beyond the membranes; cau 

 dal fin slightly rounded; anal i)apilla very conspicuous. 



Fin rays: D. IX 10; A. 13-14; V. I, 3; P. IC; C. 10 +. 



