94 SPECIMENS OF CETACEA. 



Family II. PLATANISTIDiE. 



(Fresh-water Cetacea.) 



Jaws long, laterally compressed, with numerous teeth 

 and long symphysis. Pectoral limbs broad, truncated 

 at free end, pentadactylous. 



I. PLATANISTA. (PI.) 



Platanista, Wagler, Nat. Sysf. Amph., etc., 1830. 



Skull with large plate-like maxillary crests ; beak 

 slender, with numerous teeth. No dorsal fin, but a 

 low dorsal ridge. Palatines not entering into hard 

 palate. 



(1) Platanista gangetica. (Pl. g.) 



(Gangetic Dolphin or Soosoo.) 



Length about 8 feet. Eyes diminutive; teeth about -^r^ 777:, 



beak very narrow. Vertebral formula C^D^oLgCdgy 

 = 52. Sternum consists of three transverse segments. 

 Frequents Ganges, Brahmaputra, and Indus rivers. 



1. Skeleton, articulated, male, length 6 feet; length of beak 



12^ inches, breadth at base 1^ inch. An elaborate 

 description of the anatomy of the Dolphin of the 

 Ganges has been given by Dr John Anderson in his 

 Anatomical and Zoological Researches, 1878. Carpus 

 figured in Plate XI. Donor — Dr John Anderson, F.R.S. 



2. Skeleton, articulated, female; length of beak 18 1 inches, 



breadth at base li inch. Spine injured and bent 

 laterally at junction of lumbo-caudal region. 



Donor — Dr John Anderson, F.R.S. 



3. Skull, incomplete; length 12i inches; length of beak 



8 inches ; breadth at base 1 inch. Mandible lOi inches 

 long; symphysis 6f inches. The skull is that of a 

 young animal. Knox Collection, No. 105. 



4. Skull, with mandible. The beak and fronto-maxillar}^ 



region are invested by the dried skin. Teeth longer 

 in front than behind, equal in number in each jaw. 

 Maxillary crests meeting inesially on vertex. Length 

 of skull 18i inches. Length of beak from maxillary 

 fold of skin 9i inches. Caught at Cawnpore, 1880. 



Donor — Major G. Logan, H.M. Indian Army. 



