•806 MR. R. LYDEKKEK ON AN [Kov. 3, 



provisionally i-ef erred to T. gilli (Proc. Zool. Soc. 1905, vol. i. 

 pi. xiii. fig. 1), but the iiiicler-parts are lighter, and there appear 

 to be slight differences in the form of the beak and dorsal fin. 

 These might be considered individual variations ; but the ditfer- 

 ence in the number of the vertebrte is so great, wliile the relations 

 of the pterygoids are alst) difi'erent, that I cannot refer the two 

 specimens to the same species. From T. (jp'phyreus the Travancore 

 Bottle-nose differs, among other features, conspicuously in regard 

 to the number of joints in the flij)pers. There accordingly seems 

 no other course but to regai'd the new Trevandrum Bottle-nose as 

 an undescribed species — a view in which I am supported by the 

 taxidermist at the Trevandrum Museiun, who has had under his 

 hands all the Travancore Cetaceans described by myself. I there- 

 fore propose the name Tursiops dawsonl for the new specimens, 

 taking the skeleton in the British Museum as the type. 



The second species to which I have to refer on tlie present 

 occasion is a representative of the Finless Porpoises, Xeo2)hoccena 

 (^Neomeris), taken by fishermen oflf Trevandrum in June last and 

 purchased by the local museum. While agreeing in all general 

 respects with the typical Iseoplioccnna phocoinoides, this specimen 

 (PI. XLIV. fig. 2) differs by the circumstance that the purplish-red 

 patches on the lips and throat are replaced by pale grey areas of 

 corresponding shape ; while there are likewise numerous ii'regu- 

 larly disposed, narrow, lead-coloured streaks on the under surface 

 of the lower jaw, not noticed in descriptions of the ordinary form. 

 The general colour is uniform dark plumbeous, ]:)ecoming gradually 



■'0 21 



paler on the flanks and under-parts. The teeth are "^ and ^. 



= 39 and 41. The vertebra? number 0. 7, D. 14, L. 12, Ca. 26 



= 59 ; and of the fourteen pairs of i-ibs, seven are double-headed. 



Since NeophoccBua plioGcenoides is genei'ally described as having 



18 



about Jo (= 36) teeth, wliile its vertebral formula is given as 



C. 7, D. 12, 13, L. + Ca. 38-43 = 57, 58, or (maximum) 63, 

 nothing of any decisive importance can be inferred in these 

 respects with regard to the new specimen, which, for the present, 

 at any rate, I prefer to leave unnamed. 



It may be useful to publish the following dimensions of this 

 specimen, as supplied from Trevandrum : — 



ft. ill. 

 Length from tip of snout to notch in the tail . 3 9 



Do. to origin of flipper, right side 11 



„ „ „ leftside 10| 



„ genitals 2 4 



,, anal opening 2 6 



Length of flippers, right side 8^ 



„ ., leftside 8 



Expanse of tail 1 2 



Greatest circumference of body 2 1 



Smallest „ ,, at root of tail... 6 



Genital eroove , 2 



