SPECIMENS 



OF 



SIEENIA. 



Family 1. HALICORID.^. 



(Represented by a single genus.) 



I. HALICORE. (Hal.) 



Illiger, Prod. Syst. Mamm. et Avium, 1811. 



Skull with rostrum or beak formed by a pair o£ pre- 

 maxillse which are bent greatly downwards; sym- 

 physial end of lower jaw also bent downwards, rough 

 surface supports horny plate. No nails on pectoral 

 limbs. Tail horizontal, flanged. No dorsal fln. 



(1) Halicore Dugong. (Hal. d.) 



(Dugong, Indian Dugong.) 

 Halicore Dugong, Illiger, op. cit. 



Length 8 to 10 feet. Colour bluish black on dorsum, 

 venter greyish white ; muzzle with thick lips. 

 Vertebral formula C^'D^QLr(^d.y^ = 59. 



Tlie figure below represents a male foetus 5 feet 4 

 inches long, measured along the dorsal curve. The 

 skin was smooth, dull yellowish grey colour, lighter 



I 



145 



