igig.] T. SouTHWELi, & B. Prashad : Sludies of Indian Fishes. 225 



Two specimens of embryos of this fish were obtained from an 

 adult shark trawled in Portugal Bay, Ceylon, on the 27th of 

 February, 191 r. 



Scoliodon sorrakowah (Cuv.). 

 (PL XVII, figs. 6, 9 and 10.) 



1889. Cardial ias laUcondafiis, Day, Faun. Brit. lud., Ftslies, I, pp. 9, 10, 



fig- I- 

 191 3. Scoliodon sorrakoii'ah , Garman, Mem. Mus. Com p. Zool. Harvard, 

 XXXVI, p. no. 



In embryos 135 mm. long the head is slightly depressed, the 

 snout is long, gradually narrowing anteriorly and a little rounded 

 at the end. The distance of the snout from the mouth is much 

 longer than the distance between the eye and the first gill-opening. 

 The nostrils are much nearer the mouth than the snout. The 

 mouth is a little wider than long, rounded in front and with 

 feebly developed labial folds on the lower jaw, none on the upper. 

 The teeth are not fully developed. 



Fins. — The pectorals are much longer than wide and do not 

 reach the origin of the first dorsal ; they have the hind margin 

 nearly straight. The base of the first dorsal is much longer than 

 the distance between the ventral and the anal, and is nearly equal 

 to that between the anal and the caudal ; it ends slightly in front 

 of the ventrals. The base of the second dorsal is much less than 

 that of the anal. The caudal is well developed with a large sub- 

 caudal lobe. The claspers in male specimens are feebly developed 

 rods. 



The attachment of the placental cord is of the same type as 

 in S. walbeehmi described already. 



Colour. — The back is of a bluish-grey colour, lighter on the 

 sides and with the ventral surface whitish. 

 Meastuemenfs : — 



Total length 



Snout to caudal pits 



Snout to fifth gill-opening 



Snout to mouth . . 



Length of placental cord 



Yolk sac placenta .. ii'5 mm. X 9 mm. 



The above description is based on a well developed specimen 

 out of a large series obtained at Puri, Orissa, during the months of 

 June and August, 1918. There are some younger embryos as well 

 but these do not show any special peculiarities. 



Pristis cuspidatus, Latham. 



1909. Pristis ciispidatiis, Annandalc, Mem. liid. Mus., II, pp. 5, 6. ■ 



The external characters of the embryos before us, which were 

 collected by one of us from off the coast of Ceylon, have been 



