10 CHONDROPTBBTGII. 8ELACHOIDEI. 



at their bases : those in the lower jaw very oblique, especially near 

 the syraphysis : none are serrated. Fins the length of the base of 

 the anal fin is nearly or quite equal to its distance from the ventral : 

 the pectoral does not extend so far as to below the origin of the 

 dorsal ; its posterior edge is nearly straight, its internal edge one 

 third of the length of its outer margin. The length of the caudal 

 fin is contained 3f to 4 times in the total length, but is rather 

 more in adults than in immature specimens. Colour uniform grey 

 superiorly, white beneath : the pectoral of a deep grey, having a 

 white outer edge, as have also the ventral and anal ; posterior portion 

 of caudal fin dark grey or nearly black. 



Hob. Seas of India to the Malay Archipelago and beyond. This 

 species attains to at least two feet in length. 



2. (2.) Carcharias acutus. 



Carcharias acutus, Rilppett, N. W. Fische, p. 65, t. xviii, f. 4 ; Day, 



Fish. India, p. 712, pi. clxxxiv, fig. 3 (see synon.). 

 Purrooway sorrah, Tarn. ; Parl sorrah, Mai. ; Sem sorrah, Tel. 



Length of preoral portion of snout one fourth longer than the 

 gape of the mouth, and equal to or slightly less than the distance 

 between the eye and the gill-opening : a groove at the angle of the 

 month not, or but slightly, extending on to the upper jaw. 

 Nostrils nearer to mouth than to the end of the snout. Teetli 

 the upper and lower ones oblique, without swollen bases and none 

 serrated. Fins the length of the base of the anal fin is one half 

 its distance from the ventral or less : the pectoral extends to at 

 least below the origin of the dorsal, its posterior edge is concave, 

 and its internal edge about two fifths the length of its outer : 

 second dorsal small, situated over the posterior half of the anal. 

 Length of caudal fin contained about 3^ to 3| times in the total 

 length. Colour grey or bronze above, white below : fins grev, 

 the posterior edge of pectoral, outer edges of ventral, anal, and 

 posterior half of caudal, white; upper edge of caudal dark, as 

 is also its posterior lobe. 



Hob. Eed Sea, seas of India to the Malay Archipelago, and 

 beyond ; said to attain to a considerable size. 



3. (3.) Carcharias walbeehmi. 



Carcharias (Scoliodon) walbeehmi, Bleeker, Nat, Tyds. Ned, Ind. 



x, p. 353. 

 Carcharias walbeehmii, Day, Fish. India, p. 712, pi. clxxxv, fig. 2 



(see synon.). 



Ei-dah, Andamanese. 



Length of the preoral portion of the snout exceeding the width 

 of the mouth by nearly one third, and equalling the distance 

 between the eye and the second gill-opening. A well-marked 

 groove at the angle of the mouth extending on to the upper jaw 

 and along a portion of the mandible. Nostrils rather nearer to the 





