582 MR. W. B. B. OLIVER : REVIEW OF THE 



LiSSODELPHIS. 



Lissoclelphis Gloger, 1841, Hand- u. Hilfsb. ISTaturg. vol. i. 

 pp. xxxiv, 169 ; type, Delphinus jjeronii Lacepede. (Tursio 

 Wagler, 1830, is j^reoccupied by Tursio Fleming, 1822, a genus 

 of Physeteridae.) 



LiSSODELPHIS PERONII. 



Delphinus peronii Lacepede, 1804, Hist. Nat. Cet. p. 316 (south 

 of Tasmania). Tursio peronii Lacep., Lillie, 1915, 'Terra iSTova' 

 Exped., Zool. vol. i. p. 121. 



Tills species is included in the New Zealand fauna on the 

 authority of Lillie, who records seeing two specimens in lat. S. 

 47° 04', long. E. 17P 33' (south-east of Nugget Point, Otago).. 

 The species is easily recognised on account of its peculiar 

 coloration. It has been recorded in the Southern Ocean from 

 Tasmania to Chile. 



Stenella. 



Stenella {^ SUno) Gray, 1866, Proc, Zool. Soc. 1866, p. 213; 

 type, Steno attenuatus GrSij. Proclelphinus Gervais, 1880,. 

 Osteogr. Cet. p. 604 ; type, P. marginatus Duvernoy ( = /". euphra- 

 sy ne Gray). 



I have adopted Stenella as the earliest valid name for this 

 genus, passing over Soicsa. proposed earlier on the same page, 

 because it is probably only a variation of Susie (preoccupied by- 

 Lesson, 1828). It may also be added that Susu or Sousou is a 

 Hindu word, and therefore the type of Sousa, if not hitherto 

 fixed, should be the Indian species ^S*. lentiginosus. 



Stenella euphrostne. 



Delphinus euphrosyne Gray, 1846, Zool. 'Erebus' & 'Terror,' 

 p. 40, pi. 22. Clymenia novce zealcmdice (not Quoy & Gaimard) 

 Hector, 1873, Trans. N.Z. Inst. vol. v. p. 159, pi. 2; id. 1877,, 

 1. c. vol. ix. pi. 11. 



A large species, recorded from the North and South Atlantic. 

 Its claim to be included in the New Zealand fauna rests on the 

 following skull : — 



Waikanae Coast. — Skull in Dominion Museum, Wellington. 

 Described and figured by Hector. The proportions of this skull 

 and the position of the nerve foramina agree Avith the type of 

 D. euphrosyne as figured by Gray (Zool. ' Erebus ' & ' Terror,' 

 pi. 22). Teeth -^^ Length of skull 48 cm., of rostrum 28*4 cm. ;; 

 breadth of skull at squamosals, 23*3 cm. j breadth of rostrum at 

 base, 12 cm. Pterygoids approximate to within 2 mm. 



