352 MR. C. TATE REGAN ON SHARKS [Apr. 28, 



Klunz. Fisch. Roth. Meer. p. 230 (1870); Day, Fish. India, 

 p. 725 (1878). 



Nasal cirrus extendiiig to or nearly to the oral edge of the 

 nasal valve. Lower labial folds separated by a considerable inter- 

 space. Teeth with a strong median cusp and with 3 or 4 smaller 

 accessory cusps on each side. First dorsal a little larger than the 

 second or than the anal ; all three with slightly concave free edge 

 and acutely pointed anterior angle ; base of fii'st dorsal opposite 

 to that of the pelvics, its length a little more than the distance 

 from the second. Anal beginning below the anterior part of 

 second dorsal. Caudal fin nearly | the length of the rest of the 

 fish ; lower lobe pi'oduced and acutely pointed anteriorly. Pectoral 

 with slightly concave free edge and acutely pointed anterior 

 angle, nearly twice as long as broad, its length nearly equal to 

 its distance from the end of snout or ^ of the distance from its 

 origin to that of the pelvics. Brownish, 



Tropical Indo- Pacific. 



Attains a length of 2400 mm. 



4. GiNGLYMOSTOMA CONCOLOR. 



Nehrius concolor Riipp. Nevie Wirbelth., Fische, p. 62, pi. xvii. 

 fig. 2 (1840). 



Ginglymostoma concolor Cant. Cat. Mai. Fish. p. 395 (1850) ; 

 Oiinth. Cat. Fish. viii. p. 409 (1870) ; Klunz. Fisch. Roth. Meer. 

 p. 232 (1870); Day, Fish. India, p. 811 (1878). 



Qinglymostoma riijjpeUii Bleek. Yerh. Bat. Gen. xxiv. 1852, 

 Plagiost. p. 91, and Nat. Tijds. Ned. Ind. iii. 1852, p. 83 ; 

 Dumeril, Elasmobr. p. 334 (1865). 



Nasal cirrus extending to the oral edge of the nasal valve. 

 Lower labial folds separated by a considerable interspace. Teeth 

 multicuspid, the cusps subequal or graduated to the strongest, 

 which is not the median one. First dorsal a little larger than 

 the second or than the anal ; all three with straight or slightly 

 concave free edge and acutely pointed anterior angle ; base of first 

 dorsal opposite to that of the pelvics, its length greater than the 

 distance from the second. Anal beginning below the anterior 

 part of second dorsal. Caudal fin i the length of the rest of the 

 fish ; lower lobe produced anteriorly. Pectoral with slightly 

 concave fi-ee edge and pointed anterior angle, 1| as long as broad, 

 its length equal to its distance from the mouth or f of the 

 distance from its origin to that of the pelvics. Brownish. 



Indian Ocean ; Malay Archipelago. 



1. (660 mm.) Java. Dr. P. Sleeker, 



2. (700 mm.) stuffed. Pinang. Dr. Cantor. 



3. Rhinodon. 



Rhineodon (Smith) Miill. & Henle, Arch. f. Naturgesch. 1838, 

 i. p. 84. 



