416 MESSRS. A. ADAMS AND G. FRENCH ANGAS [NoV. 10, 



5. Amphipeplea phillipsi, Ad. & Ang. 



A. testa ovata; spira elata, acuta, tenui, cornea; anfractu ultimo 

 magna, nan ventricoso, transversim creberrime striata; aper- 

 tura oblongo-ovali ; labia callo tenui expanso obteeto ; labro 

 simplici, acuta. 

 Long. 9 lines, lat. 4 lines. 

 Hab. Arnheim's Land {Coll. Angas.). 



A neat, horn-coloured, finely transversely striated species, with an 

 acute elevated spire. We have named it after Mr. T. Phillips, who 

 has assiduously collected many new Australian shells. 



rt . , 6. Physa newcombi. Ad. & Ang. 

 hP hi 



P. testa ovata, umbilicata ; spira mediocri, acuta, ad apicem in- 



tegra, cornea, viridescente aut pallid e fulva ; anfractibus quin- 

 que, convexis, scepe plus minusve transversim subliratis ; aper- 

 tura ovata ; labia reflexo, umbilicum partim tegente ; labro 

 vix incrassato, peristomate nigrescente. 

 Long. 10 lines, lat. 7 lines. 

 Hab. Ponds at Mount Margaret (Co//. Angas.). 

 We have much pleasure in naming this noble Physa after Dr. 

 Newcomb, the distinguished American conchologist, who has con- 

 tributed so much, by his researches in the Sandwich Islands, to our 

 knowledge of the genus Helicter or Achatinella. The species is 

 widely umbilicated, and the peristome is usually dark-coloured. 



7. Physa ferrxjginea, Ad. & Ang. 



P. testa ovata, rimata, ferruginea ; spira mediocri, apice eroso ; 

 anfractibus tribus, convexis, simplicibus, transversim crebre 

 crenato-striatis ; apertura ovata, intus purpurascente ; labia 

 tenui, late reflexo ; labro acuta. 



Long. 5 lines, lat. 4 lines. 



Hab. Arnheim's Land, N.W. Australia {Call. Angas.). 



This is a small ferruginous species, with the whorls finely trans- 

 versely striated. 



8. Physa badia. Ad. & Ang. 



P. testa elongato-ovata, imperfarata, solida, badia ; spira elata, 

 apice obtuso eroso; anfractibus quinque, canvexiusculis, longi- 

 tudinaliter strigillatis ; apertura elongato-ovata ; labia alba, 

 excavata, lirula antica subspirali instructo ; labro arcuato, in 

 medio producto, intus fusco tincto. 



Long. 1 inch, lat. 6 lines. 



Hab. Tributaries of Adelaide River, Arnheim's lj?LXidi{Call. Angas.) . 



A fine, solid, brown species, generally more or less eroded, and 

 with a peculiarly strongly plicate columella. 



9. Physa olivacea. Ad. & Ang. 



P. testa elongato-ovata, imperforata, solidiuscula, olivacea ; spira 

 elata, attenuata, apice eroso ; anfractibus quinque, canvexius- 



