no. 2075. FISHES FROM SOUTHERN CALIFORNIA— GILBERT. 



349 



series are spinous throughout. A few imbedded plates between the 

 mandibular rami. Breast plates thin, flexible, scale-like, with con- 

 centric rings and weak radiating lines, so reduced that the anterior 

 ones, at least, are not in contact. The paired postanal plates, so 

 strongly developed in latifrons, are in this species obsolescent or 

 wanting, or concealed beneath the integument. 



Vertical fins inserted more anteriorly than in latifrons, the distance 

 from tip of snout to front of dorsal two-sevenths the total length to 

 base of caudal (one-third that distance in latifrons). First dorsal 

 spine inserted on the seventh plate, the last spine on the twelfth; 

 first ray of second dorsal on the seventeenth, the last ray on the 

 twenty-second. Behind the last dorsal ray are 18 or 19 plates 

 (always 16 in latifrons). Anal inserted one plate in advance of the 

 second dorsal. Spinous dorsal and anal convex in outline, the second 

 dorsal emarginate. Pectoral deeply notched, the lower four rays 

 greatly thickened, the uppermost of these modified rays the longest, 

 the slender ray above it only two-thirds its length. In latifrons the 

 posterior margin of the pectoral nearly truncate, the lower 5 rays 

 thickened, the upper modified ray but little produced beyond the one 

 above it. Ventrals short, reaching less than one-third the distance 

 to front of anal, the vent immediately behind their base. 



Color dusky olive, whitish on breast and underside of head and on 

 lips. Tip of snout, a blotch below the eye, and preopercles blackish. 

 A black blotch downward from shoulder, involving base of upper 

 pectoral rays. A series of oblong black blotches on sides, varying 

 somewhat in number, size, and position. Basal portion of spinous 

 dorsal white, the margin broadly black, the black area extending 

 down nearly to base anteriorly on the membrane between first and 

 second spines. Basal half of second dorsal translucent whitish, the 

 distal half black, the two areas separated by a horizontal fine. 

 Caudal rays black throughout, the membranes fighter. Ventrals 

 white; pectorals with the membranes light, the rays dark. 



Measurements in hundredths of length to base of caudal: 



Length of head 



Length of snout 



Diameter of eye 



Interorbital width 



Width of head 



Depth at occiput 



Length.of maxillary 



Width of mouth 



Width of body at axil 



Greatest depth of body 



Length of caudal peduncle 



Distance from tip of snout to front of— 



First dorsal 



Second dorsal 



Length of tenth pectoral ray 



Length of eleventh pectoral ray 



Total length without caudal, in millimeters 



Leiops 

 type. 



28.5 

 45 

 11 

 17 

 169 



Leiops 

 cotype. 



21 

 6 

 8 

 2 



12 

 9. 

 6. 

 6 

 8. 



10 



45 



30 

 45 

 13. 

 19 

 133 



Latifrons 



Station 



4480. 



21 

 6 



7.5 

 2.9 



13 



10.5 

 6.5 

 5.9 



10 



11.3 



41 



34 

 47 

 10.9 

 16.5 

 132 



