39^ B. I^. Chaudhuri : A new Saw-Fish. [Vol.. II, 1908.] 



Colour. — Head and upper part of the body ash-grey, gradu- 

 ally passing mto light blue and then to light yellow on the sides, 

 edged with a reddish line from snout to pectoral fins ; eyes gold ; 

 body of the dorsal and caudal fins yellowish to light red ; the 

 claspers red. 



One & caught near Elephant Point, Burma Coast, in July 

 1908, measuring 8 feet 7 inches without the rostrum. 



It differs from Pristis zysron, which it resembles in some 

 respects, in the following points : — . . 



(i) It possesses an unequal number of teeth on the two 



sides of the saw, whereas P. zysron has the same 



number on each side ; 



(2) the first dorsal in P. zysron is almost entirely behind the 



ventral, whereas in the new species it is almost above 



. ^ the ventral ; 



^ (3) in P. zysron the second dorsal is larger than the first, in 



^ , the new species it is smaller ; 



(4) in P. zysron the second dorsal is situated near the root 

 ',;, . of the caudal, to which its posterior lobe almost 

 : ■ : . • .^ reaches, but in the new species there is a consider- 

 able space between ; 



(5) in P. zysron the caudal is without a lower lobe, but in 

 . : the new species it has a distinct lower lobe, which is 



rounded; 

 ; (6) the pectorals in P. zysron are rounded distally, whereas 



in the new species they are triangular. 



I have compared the type of the new species with specimens 

 of all the known Oriental species. 



