66 DELPHINID^. 



b. Skull small, rather spongy. Teeth small, slender, attenuated, about four 

 or Jive in an inch of the length of the margin of the jaw. 



* Beak of the skull elongate, compressed, much attenuated and acute in 

 front. Teeth four in an inch. 



4. Steno capensis. B.M. 



Steno capensis, Gray, I. c. p. 394. n. 4*; Synops. Whales Sy Dolph. p. 5. 

 Inhab. Cape of Good Hope. 



5. Steno lentiginosis. B.M. 



Steno lentiginosus, Gray, I. c. p. 894. n. 4** ; Synops. Whales # 

 Dolph. p. 5 ; Oiven, Trans. Zool. Soc. vi. t. 5. f. 2, 3. 



Inbab. India ( W. Elliot). Skull, B.M. 



1. Steno roseiventris, Gray, Cat. S. Sy W. p. 233. no. 2. 

 Inhab. Moluccas. Skull not seen by me. 



* * Beak of the skull short, compressed, much attenuated and acute in front. 

 Teeth Jive in an inch. Flesh-coloured. Fluviatile. Tucuxa. 



6. Steno tucuxi. B.M. 



Steno tucuxi, Gray, I. c. pp. 236, 394; Synops. Whales Sy Dolph. p. 5. 

 Inbab. Brazil, river Amazons, 1500 miles from the sea (Bates). 

 See also S. (?) jiuviatilis and S. (?) pallidus, Gray, 1. c. p. 237 ; 

 same locality, if distinct. 



*** Beak of the skull elongate, rather depressed, broad, slightly compressed 

 on the sides. Teeth small, Jive in an inch. Stenella. 



7. Steno attenuatus. B.M. 



Steno attenuatus, Gray, I. e. pp. 235, 395 ; Syn. Whales Sy Dolph. p. 5. 

 Inhab. India. 



The beak of the skull flattened (Zool. E. & T. t. 28). 

 This section is nearly intermediate between Steno and Clymenia. 



8. Steno fuscus. B.M. 



Steno fuscus, Gray, Synops. Whales S}- Dolph. p. 5, t. 26. f. 1. 

 Only known from a foetus in spirits. 



2. Steno ? brevimanus, Gray, Cat. S. Sy W. p. 236. 



36 

 36" 



Inhab. Banda, Singapore. Teeth ^. 



3. Steno ? coronatus, Gray, Cat. S. cy W. p. 238. 

 Inhab. Spitsbergen (Fremixville). Not seen since 1806, and no 

 remains of it in any museum. 



