264 



ME. E. A. SMITH OlST THE 



15. YlVIPAEA AMPULLAROIDES, Hatlley. 



Vivipara ampullaroides, Hanley, Con. Icon. (Paludina), fig. 30. 



Paludina australis, Reeve, Con. Icon. fig. 71 ; Martens, Ann. 8j- Mag. Nat. 

 Hist. 1865, xvi. p. 255 ; Smith, Voy. Erebus ^ Terror, p. 3, pi. iv. 

 fig. 19. 



Paludina affinis. Martens, I. c. p. 256. 



Hah. ? and "Victoria Eiver, N. Australia {Reeve); Fitzroy 



Eiver and Port Essington {Gapt. Wichham). 



It is difficult satisfactorily to draw a line of separation between 

 this species and V. essingtonensis. It has rather less of an um- 

 bilicus and less convex whorls. The aperture, too, is a little acu- 

 minate at the base at a point where an obtuse angulation around 

 the umbilical region terminates on the peritreme. The latter is 

 somewhat, as it were, pressed down on the columellar side, reflexed 

 and bordered with dark olive. The typical specimens of V. am- 

 pullaroides, v. australis, and V. affinis are all in the Museum 

 collection, so that I can state with certainty that they are iden- 

 tical. Eeeves describes the sculpture of V. ampullaroides as 

 " minutely punctured," and that of V. australis as " minutely 

 striated." On examining the shells figured, their sculpture 

 proves to be of precisely the same character. 



16. YlVIPAEA "Wateehottsii, a. Adams ^ Anqas. (Plate VII. 

 fig. 14.) 



Vivipara Waterhousii, A. Adams Sf Angus, Proc. Zool. Soc. 1863, 

 p. 414. 



Hah. Newcastle waters, Arnheim's Land, N. Australia. 



17. ViTiPARA Kin Qi, A. Adanis ^ Aiiff as. (Plate VII. fig. 15.) 

 Vivipara Kingi, A. Adams Sf Angus, Proc. Zool. Soc. 1863, p. 415. 

 Sab. King's Ponds, Arnheim's Land. 



This species resembles to some extent V. intermedia ; but is 

 distinguished by its larger umbilicus and the paler colour of the 

 aperture. 



18. ViviPAEA INTERMEDIA, Sanley. 



Vivipara intermedia, Hanley, Conchol. Icon. (Paludina), fig. 57 (1863). 



Paludina purpurea. Martens, Ann. ^ Mag. Nat. Hist. 1865, xvi. p. 428 ; 

 id. Mai. Blat.\865,^. 150. 



Hah. ? (Heeve); Murray Eiver, Australia (Martens). 



The specimens described by Martens were received from Mr. 

 Krefft. The British Museum is also indebted to the same gen- 

 tleman for three examples from the same river with the follow- 



