62 PROCEEDINGS OF THE ACADEMY OF [April, 



concave, and with a sharp point posterioriy. Lower caudal lobe about 

 2f in upper. Caudal notch near tip. ■ Pectoral falcate, margin con- 

 cave and reaching posteriorly below posterior base of dorsal. Ventral 

 small, broad, obtuse, and inserted nearly midway between posterior 

 basal edge of first dorsal and origin of second dorsal. Color when fresh 

 in arrack slaty-gray, paler below. Upper surface of body and pectoral, 

 also dorsal and caudal, variegated with deep leaden-gray blotches, 

 and many of those on side of trunk more or less elongate and vertical. 

 Length 39^ inches. Padang, Sumatra (Harrison and Hiller). 



Very large jaws from Guaymas, Mexico; also a pair from Beesley's 

 Point.. N. J. (S. Ashmead) ; a pair from between Turk's Island and 

 Barbadoes (Dr. W. H. Freeman). 



Prionaoe glauca (LinnEeus). 



Head 5; depth about 10^; width of head about 2 in its length; snout 

 2f ; eye about 7h ; width of mouth about 3 J ; interorbital space 2f ; front 

 margin of first dorsal 2^ ; front margin of second dorsal 4§ ; front margin 

 of anal about 4; least depth of caudal peduncle about 7|-; pectoral If; 

 ventral 3^. Teeth with entire edges, and each lateral tooth of upper 

 jaw followed by about four cusps and in lower by one or two. Median 

 teeth in each jaw erect, smaller and with a single slender point. Color in 

 alcohol deep chocolate-brown on back and upper surface, and lower 

 surface pale creamy-white. Dorsals and caudal, except basally at 

 lower lobe, which is whitish, dark like back. Upper surface of pectoral 

 and ventral dark like back, though latter paler, and lower surfaces 

 grayish to whitish like belly. Entire lower surface of head whitish like 

 belly. Iris grayish-slaty, pupil pale. Length 23 inches. Italy 

 (Bonaparte, No. 250). 



Another dried skin, without data, is 48 inches long. 



Eulamia milberti (Miiller and Henle). 



One from Great Egg Harbor Bay (Dr. J. Leidy). 



The name Carcharias Rafinesque cannot be applied to this genus, as 

 the only species mentioned for it, and therefore its type, is taurus, a 

 sand shark identical with Agassiz's genus Odontaspis. Carcharhinus 

 Blainville^^ is next in order. It is based on commersonii, lamia, lividus, 

 iistus, heterodon, verus, broussonetii, glaucus, cceruleus, megalops, hetero- 

 branchialis, cornuhicus, monensis?, vulpes. Drs. Jordan and Gilbert 

 restrict the first species {commersonii) as its type, but all the evidence 

 shows it to be a nomen nudum, and their suggestion that it is based on 

 Lacepede's figure of Le Squale Requiii}^ seems only assumption when 



'=> Bull. Soc. Philomath., Paris, 1816, p. 121. 



" Hist. Nat. Poiss., I, 1799, pp. 165, 169, PI. 8, fig. 1. 



