FAMILY, I— CARCHARIID.E. 713 



h. Teeth with smooth edges, those in the centre of the loioer jaw smaller than those at the side : the latter heing 

 swollen at their bases and having an olilique and narroiv cusp : vjjper teeth flat and oblique (Physodon). 



4. Carcharias Miilleri. 



Miiller and Henle, Plagios. p. 30, t. xix, f. 1 {teeth) ; Bleekor, Beng. p. 80 ; Dumeril, Hist. Nat. Poiss. 

 i, p. 347 ; Giinther, Catal. viii, p. 360. 



Snont elongated and pointed. Nostrils nearer the angle of the mouth than to the end of the snout. 

 Mouth nearly as long as -wide. Fins — the end of the base of the first dorsal situated opposite the origin of the 

 ventral : second dorsal very small and commencing above the last third of the base of the anal. Pectoral 

 extends to below the origin of the first dorsal. Colours — brownish, becoming lighter beneath : fins a little 

 darker. 



Habita t.- — Bengal. 



c. Teeth with smooth edges : all narroiv and standing on a broad base, the upper being erect or slightly oblique : 



tJie lower being erect (Apirionodon). 



5. Carcharias acutidens, Plate CLXXXIX, fig. 1. 



Riippell, N.W. Fische, p. 65. t. xviii, fig. 3 ; Giinthei-, Catal. viii, p. 361 ; Klunz. Fische Roth. Meer. 

 1871, p. 667. 



Carcharias (Aprion) acutidens, Mijller and Henle, Plagios. p. 33. 

 Carcharias (Aprionodon) acutidens, Dumeril, Hist. Nat. Poiss. i, p. 349. 



Snout obtuse and rounded, the length of its preoral portion equal to 2/3 of the width of the mouth and 

 much less than the distance between the eye and the first gill-opening. Nostrils rather nearer mouth than to 

 the end of the snout. A very short groove at the angle of the mouth not extending on to the upper jaw. Eye 

 small. Gill-openings much wider than the orbit. No trace of any spiracle. Teeth — |-fl|-|, those in both 

 jaws rather slender, erect, or oblique, and with the bases rather swollen, none serrated. Fins — the base of the 

 first dorsal situated midway between the inner angle of the pectoral and the commencement of the ventral : 

 second dorsal nearly as large as the first, situated above but rather larger than the anal. Caudal fin 4| in the 

 total length. Pectoral falciform, its inner edge SJ times in its outer, it reaches to beneath the middle of the 

 base of the first dorsal. A well-developed pit before the base of the caudal fin. Colours — of a dull reddish 

 brown, becoming lightest on the sides and beneath. 



Habitat. — Red Sea, coasts of Sind and the Indian Ocean. The example figured is nearly four feet in 

 length, but 1 have obtained specimens up to six feet. 



6. Carcharias tricuspidatus, Plate CLXXXVI, fig. 1. 



Odontaspis Am,ericanus, Giinther, Catal. viii, p. 392 {part"). 



Length of preoral portion of the snout equal to half the width of the mouth, and not equal to half the 

 distance between the eye and the first gill-opening : no groove at the angle of the mouth. Nostrils nearer to 

 the mouth than to the end of the snout. Gill-openings much wider than the orbit. Teeth — jflf^, very large, 

 awl-shaped, smooth except at the base, where there exists a small basal cusp on either side. The fourth tooth 

 on either side of the symphysis of the upper jaw very much smaller than those nest to it : the central tooth 

 on either side of the symphysis of the mandibles slender. The last few lateral rows in either jaw small. Fins 

 — pectoral reaching to below the base of the first dorsal : its inner edge 1/5 of the length of its outer. First 

 dorsal very slightly larger than the second, its base situated nearer to the ventral than to the pectoral. The 

 second dorsal slightly in advance of and about the same size as the anal : length of base of anal equals its 

 distance from the ventral. Caudal fin 3| in the total length. Colours — brown superiorly, becoming dull white 

 beneath. 



I obtained several examples of this large shark at Kurrachee and from the coast of Beloochistan, none 

 of which were less than twelve feet in length, while all had a pit at the root of the caudal fin. 



Habitat. — Seas of Sind, where they abound — attaining at least twenty feet in length ; one on board a 

 native craft measuring that length. The example figured (a skin) is 12 feet 3 inches in length. The teeth are 

 depicted the natural size. A specimen, 10| feet long, from South Australia is in the British Museum : also 

 several jaws. 



d. Teeth vnth smooth edges except the bases of the upper ones which are serrated {Hypoprion). 



7. Carcharias macloti, Plate CLXXXVIII, fig. 2. 



? Squalus, Russell, Fish. Vizag. i, p. 9, and Sorra koivah, pi. xv. 



Carcharias (Hypoprion) macloti, Miill. and Henle, Plagios. p. 34, t. x ; Dumeril, Hist. N. Poiss. i, p. 350. 



Carcharias macloti, Giinther, Catal. viii, p. 362. 



Pala sorrah, Tel. 



Length of the preoral portion of the snout exceeding the width of the mouth by 1/3 and equalling the 



4 T 



