71 



STENO ATTENUATES, Gray. The slender-beaked Dolphin. 

 Teeth , small, about five in an inch. (See B.M.C. p. 235, and 

 Suppl. 1871, p. 66.) 



STENO BBEViMANUS 1 , Pucheran. The Singapore Dolphin. 

 Synonyms Delphinus brevimanus, Pucheran. Voy. Dumont d'TJrville. 



Steno brevimanus, Gray. B.M.C., 1866, p. 236. 

 Teeth ^~, small, about five in an inch. 

 Inhab. Banda, Singapore. 



STENO HOSEIYENTEIB Z Pucheran. The Molucca Dolphin. 

 Synonyms Delphinus roseiventris, Pucheran. Voy. Dumont d'TJrville. 



Steno roseiventris, Gray. B.M.C., 1866, p. 233. 

 Teeth ^, small, about five in an inch. 



" Greyish-black above, under half rosy-white ; orbit, streak from eye 

 to the pectoral, and pectoral fin, dusky. Beak elongate, slender. Beak 

 of skull very long, half as long again as the brain cavity." Gray. 

 Inhab. Molucca. 



STENO FLUViATius 3 , Gervais. The Dolphin of the Upper Amazons. 

 Synonyms Delphinus fluviatilis, Gervais and Delille. 



Steno tucuxi, Gray. Suppl. B.M.C., 1871, p. 66. 



Steno ? fluviatilis, Steno ? pallidus, Gray. Suppl. B.M.O., 



1871, p. 66. 



Teeth ?|| to HJ, small, about five in an inch. 



" S. fluviatilis, above blackish, a broad band from the eye to the 

 pectoral, and the pectoral fin black. Lower jaw and beneath rosy- 

 white, the white bent up so as to form a broad white lobe behind the 

 orbit over the pectoral." " S. tucuxi, dark blackish or fuscous ; it does 

 not roll over like the Bouko (Inia Geoffroyensis) , but comes to the 

 surface to breathe : called by the natives Tucuxi." " 8. pallidus, pale 

 yellowish white above, beneath white." Both S. fluviatilis and S. pallidus 

 " may be the same as S. tucuxi." 



Inhab. " the upper parts of the Amazons Eiver, 1,500 miles from the 

 B ea." See Gray. B.M.C. 1866, p. 236, 237. Suppl. 1871, p. 66. 



STENO GUIANENSIS, Van Beneden. The Guiana Dolphin. 

 Synonyms Delphinus Guianensis, Van Beneden. 



Tursio ? Guianensis, Gray. B.M.C. 1866, p. 257. 

 Sotalia Ghiianensis, Gray. Suppl. 1871, p. 67. 

 Teeth ||j to %, slender, conical, about five in an inch. 

 Inhab. British Guiana. 



1 Breois, short, and manus, the hand. 



* Roseus, colour of a rose, rosy, and venter, the belly. 



1 Ffaviaiilis, of or pertaining to a river, 



