66 DELPHINIDJE. 



b. Skull small, rather spongy. Teeth small, slender, attenuated, ahmdfour 

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



* Beak of the skull elongate, C07npressed, tnuch 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 Sf Dolph. p. 5. 

 Inhab. Cape of Good Hope. 



5. Steno lentiginosus. B.M. 



Steno lentiginosus, Gray, I. c. p. 394. n. 4** ; Synops. Whales Sf 

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



Inhab. India ( W. Elliot). SkuU, B.M. 



1. Steno roseiventris, Gray, Cat. S. ^ 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 ^ Dolph. p. 6. 

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

 See also S. (?) jluviatilis and S. (?) j^allidus, Gray, I. 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. c. pp. 235, 395 ; Syn. Whales ^ Dolph. p. 5. 

 Inhab. India. 



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

 This section is nearly intermediate between Steno and Clymenia. 



8. Steno fascus. B.M. 



Steno fuscus. Gray, Synops. Whales ^ Dolph. p. 5, t. 26. f. 1. 

 Only known from a foetus in spirits. 



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

 Inhab. Banda, Singapore. Teeth 2^. 



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



Inhab. Spitzbergen {Fremiuville). Not seen since 1806, and no 

 remains of it in any museum. 



