Cheeseman. — On the Mollusca of Auckland Isthmus. 167 



Lamellariidse. 



71. Coriocella ophione, Gray. Under loose stones at low water- 



mark ; not common. 



Naticidae. 



72. Natica zealandica, Quoy. A few worn specimens have been 



picked up near Lake Takapuna. 

 78. N. australis, Hutton. Dredged in Eangitoto Channel. 



Tritonidae. 



74. Triton nodiferus, Lam. One specimen obtained on Eangi- 



toto Reef. 



75. T. spengleri, Lam. Under rocky ledges near low water- 



mark ; not common. 



Sub-Order 4. Ptenoglossa. 



lanthinidse. 



76. lanthina communis, Lam. 



77. /. tricolor, Reeve. 



78. /. cxiyua, Lam. 



Dead shells of all these species are often drifted into 

 Auckland Harbour after a succession of north-easterly 

 gales. The last species is much more abundant than the 

 others. 



Scalaridse. 



79. Scalaria zelebori, Frauenf. 



80. S. jukesiana, Forbes. 



81. S. tenella, Hutton. 



Among shell-sand, near high water-mark. I have 

 not seen living specimens within the harbour, but they 

 can be obtained by dredging at Waiwera and other places 

 to the north. 



Oeder II.— RHIPIDOGLOSSA. 

 Sub-Order 1. Podopthalma. 



Neritidse. 



82. Kcrita saiurata, Hutton. Under stones and in clefts of rocks 



between tide-marks. 



Rotellidae. 



83. BotcUa zealandica, Homb. and Jacq. A few worn speci- 



mens only. 



