108 SPECIMENS OF GET ACE A. 



2. Tympano-periotic bones, pair of, articulated. Tympanic, 

 length 1| inch, breadth f inch. Bilobed on inferior 

 surface posteriorly ; outer lobe large, somewhat 

 elongated ; inner short and narrow ; groove of 

 separation prolonged forward on surface, which is 

 defined by a ridge at inner border, whilst at the outer 

 border the inferior surface blends with the external ; 

 the cavity opens close to the anterior end of the inferior 

 surface. (Figure of inferior surface below.) Periotic, 

 length 1^ inch ; meatus large. 

 New Zealand. Donor— Sir Jas. Hector, K.C.M.G. 



V. NEOMERIS. (N.) 



Neomeris, Gray, Zool. Erebus and Terror, 1846. 

 No dorsal fin. Cranium closely resembles PJioco'na. 



(1) Neomeris phoc^noides. 

 Delphinus phoca3noides, Cuvier, Regne Animal, 1829. 



Colour black, but with purplish-red patch on the lip 



and on the throat. Length about 4 feet. Habitat 



ISIS 

 India and Japan seas, the Cape. Teeth, ^ yz. 



No specimen in Museum. 



VI. ORCELLA. (Oc.) 



Orcella, J. Anderson, Proc. Zool. Soc, 1871. 



Colour pale slate above, whitish below ; head blunt, 

 rounded; dorsal fin small, falcate; beak short. Teeth 

 small, acute. Vertebral formula C7Dj3LjgCd2g = 62. 

 Length of animal 6 to 7^ feet. One or possibly 

 two species : 0. brevirostris from the Ganges, Bay 

 of Bengal; 0. fliiniinalis from the Irawady river. 

 See detailed description of the latter in Dr John 

 Anderson's Anat. and Zoolog. Researches. London, 

 1878. 



