THE SHORE FISHES OF PERU 39 



removed from a female, the length of which was not stated in Mr. 

 Lobell's field notes. The embryos are well developed in all respects, 

 exclusive of the teeth and dermal denticles. In general the proportions 

 are near those of adults, and the color agrees exactly. In addition to 

 the embryos there are at hand the jaws, dorsal, anal, and pectoral 

 fins of two adults, 295 cm. in total length and 240 cm. to fork in tail, 

 which I have identified with this species. The teeth have broad 

 bases, with a rather long central cusp, narrower in the lower than in 

 the upper ones. The cusps of the lateral teeth, especially in upper 

 jaw, are directed somewhat backward. The teeth of the upper jaw 

 are definitely serrate along both margins, whereas the lower ones are 

 smooth or at the most only slightly serrate. The pectoral fins in each 

 case are long and pointed and have the characteristic dark tips on 

 the lower side. 



The female from which the embryos in the collection were removed 

 was caught on a line trawl, on March 26, at Coles Point. The local 

 name given was "cazon deleche." The adults, of which parts were pre- 

 served, also were taken on line trawls, one at North Chincha Island 

 and the other on the north side of Atico Point. 



The specimens have been identified as Eulamia aetholorus where they 

 may rest until the relationship of this group of sharks with long black- 

 tipped pectorals is better understood. This course is taken notwith- 

 standing the faci that Nichols and Murphy and Fowler (see citations 

 above) considered the Peruvian representative as identical with E. 

 galeus of the Atlantic and elsewhere. The embryos from Peru defi- 

 nitely have a proportionately broader and rounder snout than the 

 young adults from Panama Bay and from Texas, with which they 

 were compared. All the adults examined agree in the structure of the 

 teeth. 



Range. — Baja California to southern Peru. 



EULAMIA AZUREUS (GUbert and Starks) 



Carcharias azureus Gilbert and Starks, 1904, p. 11, pi. 2, fig. 5, Panama Bay 



(original description). — Starks, 1906, pp. 762, 763, Guayaquil, Ecuador 



(compared with type; distribution). 

 Carcharias milberli Meek and Hildebrand (in part C. azureus Gilbert and 



Starks), 1923, p. 38 (synonymy; description; specimen from New Jersey 



compared with one from Guayaquil, Ecuador). 

 Eulamia azureus Beebe and Tee-Van, 1941, p. 109, fig. 18 (range; field characters; 



size; references). 



Although this species has not been reported from Peru, it may be 

 expected there, as it has been taken at Guayaquil, Ecuador. A length 

 of 282 cm. has been reported. 



Characters for the recognition of this species are included in the 

 key to the species. 



Range. — Costa Rica to Ecuador. Apparently rather common in 

 Panama Bay. 



