Cheeseman. — O71 the Mollusca of Auckland Isthmus. 171 



141. Phrixgnaihus maria, Gray. Not uncommon. 



142. P. erigone, Gray. Under decayiiig leaves. 



143. Amphidoxa cornea, Hutton. ) Under bark, logs, etc., or 



144. A. chiron, Gray. j among dead leaves. 



145. Otoconcha dimidiata, Pfeiff. Eare. Hiding in the leaf- 



sheaths of Astelia, or in similar situations. 



Charopidse, 



146. Charopa ida, Gray. Common under bark, logs, etc. 



147. Psyra dimorpha, Pfeiff. Eare. Usually found under bark, 



or in sheaths of Areca or Astelia leaves. 



148. Therasia celinda, Gray. Among decaying leaves, etc. 



149. T. tamora, Hutton. With the preceding. 



150. T. thaisa, Hutton. Under stones on the cone of Eangi- 



toto. 



151. Thalassia portia, Gvsij. Common. 

 162. T. zealandica, Gray. Common. 



Vitrinidae. 



153. Vitrina kermadecensis, Pfeiff. Formerly existed in several 



gullies near Auckland, but I think has now died out. 



Section Diteemata. 



Onchidiidse. 



154. Onchadella nigricans, Quoy et Gaim. Crawling over tidal 



rocks. Very plentiful. 



Sab-Order 2. Basommatophora. 



Limnseidse. 



155. Limnea arguta, Hutton. Lake Takapuna. Eare. 



156. Bulinus variabilis, Gray. Lake Takapuna ; streams and 



ditches at Panmure. Eare. 



157. Planorhis corinna, Gray. On Azolla, Onehunga Springs. 



Ancylidge. 



158. Latia neritoides, Gray. Lake Takapuna. Abundant. 



Auriculidae. 



159. Ophicardebis costellaris, Adams, iirackish-water swamps, 



mangrove swamps, etc. Common. 



160. MarinuJa jiUioli, Hutton. Dead shells are occasionally 



picked up ou the beaches, but up to the present time I 

 have not been able to ascertain its habitat when living. 



161. Leuconopsis ohsoleto, Hutton. Under stones, near high 



water-mark ; local. 



