no. 2075. FISHES FROM SOUTHERN CALIFORNIA— GILBERT. 36i 



laterally as a single series. Vomer and palatines toothless. Series of 

 large pores along sides of snout and on mandibles, all other pores on 

 head moderate or small; two of these conspicuously placed in the 

 same vertical behind the orbit, one on the preopercular margin above 

 its middle, and another nearly vertically above it at side of occiput. 

 Opercular membrane forming a wide flap which overlaps the basal 

 portion of upper pectoral rays. Lower end of gill slit scarcely 

 below base of pectoral, opposite the middle of the rather long ventral 

 fins. 



Posterior line of occiput midway between the front of dorsal and 

 front of eye. Axil of lower pectoral ray midway between the tip of 

 the snout and the vent. Pectorals reaching half way from their base 

 to the front of the anal fin; posterior margin of pectorals broadly 

 rounded, the rays all branched, the lower rays with thickened mem- 

 brane and exserted tips. 



Vertical fins scaled nearly to their tips; pectorals with about half 

 of the posterior face and the basal third of the anterior face scaled. 

 Occiput covered with reduced scales nearly as far forward as the eyes ; 

 opercles, subopercles, the upper branchiostegal ray, and the greater 

 portion of the cheeks and preopercles covered with densely crowded 

 very small scales. 



Lateral line running from shoulder obliquely downward to slightly 

 below middle of body, traceable backward to within a head's length 

 of the tail, having regained middle of body at this point. 



Color dark-brownish or purplish, the lower side of head and the fins 

 darker. Lining of mouth, gill cavity, and body cavity black. 



Measurements in hundredths of total length: 



Paral- Crassi- 

 lelus. labris. 



Length of head 15 14. 2 



Length of snout 3.9 3.6 



Diameter of eye 2. 6 3. 2 



Greatest width of snout 6. 6 4. 8 



Greatest width at cheeks 7. 5 5 



Greatest width at opercles 7. 5 4. 8 



Length of maxillary 5. 5 4. 8 



Length of mandible 6.5 6. 5 



Distance from tip of snout to posterior line of occiput 9. 5 9. 7 



Distance from posterior line of occiput to front of dorsal 7. 5 7. 8 



Distance from tip of snout to vent 28 28. 5 



Length of pectorals 8. 3 7. 3 



Length of ventrals 2 1.5 



Depth of body 7 6 



Total length in millimeters 387 303 



Only the type known. 



APRODON CORTEZIANA Gilbert. 



4423. Off San Nicolas Island, 216 to 339 fathoms. 



