170 University of California Publications. [Zoology 



Measurements. 



Along median dorsal line: mm. 



From tip of snout to between front of eyes 120 



To posterior edge of spiracles 35 



To tips of posterior pectoral lobes - 185 



To tips of ventral lobes 115 



To front of first dorsal 45 



To posterior tip of first dorsal 65 



To front of second dorsal 100 



To posterior tip of second dorsal 65 



To tip of caudal - 185 



Total length 915 



16. Zapteryx exasperatus (Jordan and (lilliert). 

 (Jordan and Evermann, 1896, I, p. 64.) 

 San Diego Bay is the type locality of this ray. The male 

 specimens are reported by Eigenniann (1892, p. 134) to be abun- 

 dant in the bay, thongh it was not seen by ns; female specimens 

 have never been taken. 



17. Platyrhinoides triseriatus (Jordan and (lilbert). 

 (Jordan and Evermann, 1896, I, p. 65.) 



One specimen taken at Newport Bay. It is said to be common, 

 though it was not taken by us at San Diego. Recorded from San 

 Francisco by Jordan and Gilbert (1880, p. 458). 



Family RAJID^. 

 18. Raja rhina Jordan and Gilbert. 



THE SHARP-NOSED RAY. 



(Jordan and Evermann, 1896, I, p. 72.) 

 A male specimen 40 inches in entire length was taken on the 

 banks off Point Loma, and was reported by the fishermen to be 

 not very rare. This is the first time this ray has been reported 

 south of ]\Ionterey Bay. 



Anterior edge of pectoral undulating ; concave to opposite eye, 

 where it is convex, thence concave to tip of snout. Tip of snout 

 very acute; its width, a distance from its tip equal to wudth of 

 interorbital space, is contained 1% in interorbital space. Diam- 



