IZ DELPHINIDjE. 



12. Clymenia similis. (Fig. 4.) B.M. 



Clyraene similis, Gray, P. Z. S. 1868, p. 147, fig. 2. 

 Clymenia similis, Oray, Synops. Whmes ^ Do^k. p. 6. 



Skull like C ohsewra, but palate contracted behind ; side of ptery- 

 goid bone keeled. 



Inhab. Cape of Good Hope. 



13. Clymenia crotaphiscns. 



Clymenia crotaphiscus, Cope, Proc. Ac. Nat. So. Philad. 1866, p. 13. 



Supraoccipital rounded in profile ; diameter of temporal fossa 

 shorter than the preorbital process ; beak very flat, two and a half 

 times the breadth at notch ; a keel in front of the nasal meatus. 



Inhab. Unknown. 



14. Clymenia estheuops. 



Clymenia esthenops, Cope, Proc. Ac. Nat. Sc. Philad. 1865, p. 12. 



Outline from foramen to crest curved ; cranium rounded ; tem- 

 poral fossa much longer than the postorbital process ; width of the 

 muzzle at notch two and a half times or less in the length. 



Inhab. Unknown. 



Var. Width of muzzle at notch nearly three times in the length ; 

 triangle long. 



Inhab. Unknown. 



6. DELPHINAPTEEUS. 



Delphinapterus, Gray, Cat. Seals Sf Whales, p. 276 ; Synops. Whales 

 ^ Dolph. p. 6. 



Beak of skull elongate, depressed. Teeth small, slender. Dorsal 

 fin none. Bladebone very broad, nearly semicircular. 



1. Delphinapterus Feronii. 



Delphinapterus Peronii, Gray, I. c. p. 276 ; Synops. Whales ^ Dolph. 

 p. 6, t. 15 (animal). 



Inhab. South Atlantic, New Guinea. 



c. Beak short, thick. Palate flat behind, without any laieral groove. 



6. TUKSIO. 



Tursio, Gray, I. c. pp. 264, 400; P. Z. S. 1866, p. 215; Synops. 

 Whales Sf Dolph. p. 6. 



Beah of the sJcull only rather longer than the hrain-case, conical, 

 convex above, rounded. Teeth large. Shdl high. The skull large, 

 thick, heavy, with a high swollen brain-cavity. The beak rather 

 longer than the brain- case, broad, conical, stout, shelving on the 



