5. ORCELLA. G. OHCA. 17 



2. Cephalorhjmchus (?) eiitropia. 



As this species is known by the skull alone, it can be only pro- 

 visionally assigned to the genus Cephalorhyiiclius. 



Delpliinus eutropia, Oraji, P. Z. S. 184'J, p. 1 . 

 Eutropia dickiei, Gray, P. Z. S. 18GG, p. 215. 



a. SkuU. (390 «— 49. 5. 25. 2.) 



Chili, Dr. Dickie's Collection. Purchased, 1849, 



Type of species. 



Figured in Zool. Ereb. & Terr, (supplementary plate xxxiv.). 



b. SkuU, (396 6—81. 8. 17. 1.) 



Chili, T, Edmunds, Esq,, 1881 [P,], 



5. ORCELLA. 



Orcaella, Gray, Cat. S. ^- W. p, 285 (1866). 

 OrceUa, J. Anderson, P. Z. S. 1871, p. 142. 



1. Orcella brevirostris. 



Phocfena brevirostris, Owen, Trans, Z, S. vi. p. 24, pi. ix. 



a. Stuffed specimen. (83. 11. 20. 2.) 



Singapore. Secretary of State for India [P,]. 



Malay name " Lomba-lomba." Exhibited at the International 

 Fisheries Exhibition, London, 1883. 



h. Skull. (1454 a.) 



Harbour of Yizagapatam. Sir Walter Elliot, K.CS.I. [P.]. 



Type of species. Figured by Owen, Tr, Z, S. vol. vi. pi. ix. ; 

 also'in Gray's Cat. S. & W. (1866) p. 286. 



2. Orcella fluminalis. 



(Irawaddy Dolphin.) 



Orcella fluminalis, Anderson, P. Z. S. 1871, p. 143. 



a. Articulated skeleton, (1454 6—77. 12. 10. 17.) 



Eiver Irawaddy. Dr. J. Anderson. Purchased, 1877. 



6. ORCA. 



Orca, Gray, Zool. Ereb. Sf Terr. p. 33 (1846). 



The specific determination and geographical distribution of the 

 animals of this genus present many difficulties. In the absence of 

 distinctive osteological characters, all the specimens in the Museum 

 are pronsioually included under the name of the best known species. 



c 



