Hector. — On the Dolphins of the Neiv Zealand Seas. 211 



10. Clymenia obscura, Gray. 

 Hector, Trans. N.Z. Inst., v., p. 160. 

 This species was first described as a Tursio, and placed in the sub-genus 

 Cephalorhynehus. By Gervais it is figured as an Electra (Lagenorhynchus 

 breviceps), and altogether its synonomy is in a very unsatisfactory state. 

 Yet it is not uncommon, frequenting the coast in large " schools " in a similar 

 manner to the other small dolphin (Cephalorhynehus hectori), from which it 

 is easily distinguished when swimming, by its high-pointed dorsal fin-lobe. 

 Also it is uniform black above, white beneath, with a black streak over the 

 eye. 



There is a stuffed skin, a complete skeleton, and some skulls of this 

 species in the Museum. 



The number of vertebrae is 71, viz., 7 cervical, of which the first two are 

 united, 13 dorsal, 19 lumbar, 21 sacral, and 11 caudal. 

 11. Clymenia euphrosyne, Gray. 

 C. novce-zealandice, Hector, Trans. N.Z. Inst., v., 159. 

 The skull which I described under the second of these names, I now 

 decide, from having had access to better drawings, to refer to Gray's 

 species as above. 



In the Museum we have also skulls of Clymenia dubia, Cuvier, and C. 

 attenuata, Gray, but there is some doubt if they were captured within the 

 New Zealand area. 



