54 GLOBICEPHALUS. DELPHINUS. 
Skull: total length, 662; length of rostrum, 333; breadth at base, 288; 
at middle, 235; interorbital breadth, 45; length of temporal fossa, 163. 
39. scammoni (Globiocephalus!), Cope, Proc. Acad. Nat. Scien. Phil., 
1869, p. 21. Elliot, Syn. N. Am. Mamm., 1901, p. 24. 
SCAMMON’S BLACK-FISH. 
Type locality. Coast of Lower California. 
Geogr. Distr. Coast of California southward; coast of South 
America. 
Genl. Char. Similar to G. brachypterus; pectorals longer. Skull 
heavy; intermaxille not projecting over lateral margins of rostral 
portion of maxilla; superior nares broad, and bordered by narrow 
plates of the intermaxille; pterygoids short, approximate. 
Color. Entirely black. 
Measurements. Total length, 4724; tip of snout to dorsal, 1372; 
length of pectoral, 864; width of flukes, 1007. Skull: total length, 
690; length of rostrum, 340; breadth at base, 308; at middle, 252; 
interorbital breadth, 487; length of temporal fossa, 148. 
The members of the next genus, DELPHINUS, possess prominent 
beaks, and the elongate rostrum is provided with a large number of 
teeth, which, however, is not always the same on the two sides of the 
jaw. There are many species accredited to the genus, dwellers of 
various seas, and the one given below is common both to the Mediter- 
ranean and to the waters that wash the eastern shores of the American 
Continent. 
24. Delphinus. Dolphins. 
40—40 60—60 ___ 
= 6 to 7%, = 160 to 240. 
Delphinus Linn., Syst. Nat., 1, 1758, p. 77; 1, 1766, p. 108. Type 
Delphinus delphis Linneus. 
Rhinodelphis Wagner, Schreb., Saugeth., vil, 1846, pp. 281, 316— 
2405 000 (pls. 
Eudelphinus Gerv., Ostéog. des Cét., 1880, p. 600. 
Teeth occupying nearly entire length of rostrum, numerous in 
both jaws, conical, acute, curving; rostrum twice the length of brain- 
case; pterygoids meeting on median line for their entire length; 
palate deeply grooved laterally; pectorals moderate, falcate. 
40. delphis (Delphinus), Linn., Syst. Nat., 1, 1758, p. 77; 1, 1779, 
p. 108. Elliot, Syn. N. Am. Mamm., rgo1, p. 28. 
julvo-fasciatus Wagn., Schreb. Saugeth., 1846, pl. 361, fig. I. 
