SHORE FISHES OF GALAPAGOS ISLANDS 343 



apical lobe acute, directed outward and upward or backward, serrated 

 on both sides, the serrations largest on inner side near base ; teeth ar- 

 ranged in several series ; a single row in front vertical, the others hori- 

 zontal ; back of each anterior vertical tooth is a longitudinal row of hori- 

 zontal overlapping teeth ; five well developed teeth in each longitudinal 

 row mesially, but laterally decreasing gradually to one; teeth of lower 

 jaw smaller than those of upper and in fewer longitudinal rows. 



3. CARCHARIAS GALAPAGENSIS Snodgrass & Heller, 



new species. 



Eulamia lamiella, Jordan & Bollman, Proc. U. S. Nat. Mus. 1889, 179 



(Chatham Island); not of Jordan & Gilbert. 

 Eulamia {Platypodon) platyf/iynckus Gilbert (in part), Proc. U. S. Nat. Mus. 



1 89 1, 543", Galapagos Islands. 

 Carcharhinus platyrhyiichiis, Jordan & Evermann (in part), Fishes North 



and Mid. Amer., i, 36, 1896. 



Type. — No. 12334, Stanford Univ. Mus. 



Diagnosis. — The same in every respect as Carcharias platyrhyn- 

 chus (Gilbert) except that the fins are at all ages of uniform coloration 

 with the body, being never margined with white. 



Range. — Galapagos Islands. 



Description of the Type (embryo, 650 mm. long). — Length from 

 tip of snout to front of mouth less than width of mouth by one-half 

 diameter of eye; length from angle of mouth to symphysis of lower 

 jaw equal to length of snout from mouth less one-half diameter of 

 eye; distance between outer ends of nostrils a little less than width of 

 mouth ; eye a little less than one-fourth width of mouth ; base of 

 pectoral about 3 in its own length ; base of first dorsal \\ in its height; 

 ventrals as long as base of dorsal, equal to length of snout from mouth ; 

 base of anal 2 in entire length of ventral, equal to base of second 

 dorsal ; height \ greater than that of second dorsal ; lower lobe of 

 caudal a little less than \ of upper lobe; two gill-slits above front of 

 base of pectoral. 



The proportions differ somewhat in different sized specimens. In 

 one 550 mm. long some of the above measurements are as follows: 

 Length from snout to mouth equal to width of mouth ; length from 

 angle of mouth to pectoral a little greater than width of mouth ; length 

 from angle of mouth to symphysis of lower jaw less than length from 

 symphysis to snout by | diameter of eye ; distance between outer ends 

 of nostrils equals width of mouth ; lower lobe of caudal | of upper lobe. 



Extremely abundant about the Galapagos Islands, especially about 

 Wenman and Culpepper and between Albemarle and Narboro. The 



