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 rnesially, 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 (Platypodori) platyrhynchus GILBERT (in part), Proc. U. S. Nat. Mus. 



1891, 543, Galapagos Islands. 

 Carcharhinus platyrhynchus, JORDAN & EVERMANN (in part), Fishes North 



and Mid. Amer., I, 36, 1896. 



Type. No. 12324, 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 



