32 FOSSIL FISHES OF SOUTHERN CALIFORNIA 



dorsal, both ventrals and the anal. No. CXV shows a broken head with 

 the vertebral column ; the tail as usual well preserved ; CXX is shadowy, 

 showing a broken head, part of the dorsal fin and a well-preserved tail. 

 No. CXVII is a very small example, poorly preserved. Most of these 

 specimens have been returned to the Lorquin Natural History Society, 

 the type and some others retained at Stanford University. 



To this species we refer provisionally a block containing a school of 

 little fishes about thirteen in number, 1^4 inches in length (No. XVII) 

 variously distorted, also from El Modena, E. E. Hadley, and imbedded in 

 diatomaceous shales. The characters as well as we can make them out 

 are as follows : 



Head large, 3 in length; depth 5%; snout pointed; jaws long, sub- 

 equal, extending to opposite the very large eye ; edge of upper jaw appar- 

 ently curved, with small teeth ; vertebrae about as deep as long, about 

 forty in number, fourteen behind front of anal fin ; posterior vertebrae 

 with well developed neural and haemal spines, hypural plate small, appar- 

 ently present; caudal deeply forked, two-thirds length of head, the rays 

 about eight to ten; caudal peduncle about equal to space between dorsal 

 and anal ; a detached pectoral contains five rays, slender, two-thirds length 

 of caudal lobes; a pectoral fin in place is attached rather high to the 

 middle of the opercular border, its position probably due to distortion. 

 Dorsal small, rather low, six or eight rays visible, inserted a little in front 

 of middle of body, its first ray over the ventrals which are also small, 

 with eight or ten rays ; anal fin very obscurely shown, its insertion well 

 behind the dorsal. 



These specimens are no doubt the young of QU^SITA QUISQUILIA, as 

 we see no characters by which they can be separated. 



On the same block with these (lower left-hand corner) is a small 

 example of AZALOIS ANGELENSIS. 



28. Azalois angelensis Jordan and Gilbert, new genus and species. 



(Plate XV, fig. 2) 



A little fish (No. XLII) about two and a half inches long, from 

 Bairdstown, in diatomaceous shales. The form of the body and the head 

 are fairly well preserved. In outline it bears considerable resemblance to 

 the figure of YARRELLA BLACKFORDI Goode & Bean, though differing 

 widely in details. In technical characters it approaches QU^ESITA. 



Head about 4 in length to base of caudal, depth S l / 2 , eye 3^4 in head ; 

 depth in head \ l / 2 ; snout 3; vertebras 26+ 16 = 42. Body moderately 

 elongate, deepest before the dorsal fin, probably considerably compressed ; 

 body depth sustained well backward, the caudal peduncle more slender; 

 head large; the mouth large, oblique, the mandible projecting, and with 



