280 Transactions. — Zoology. 



Standella aequalis (= uniform), n. sp. Fig. 13, a. 



Shell a true oval, umbones two-fifths from the anterior end ; 

 the entire shell, prodissoconch included, lightly and irregularly 

 concentrically striate. Hinge teeth, sinus, scars, &c, normal. 

 Height, 17 mm. ; breadth, 27 mm. ; depth of single right valve, 

 6 mm. 



Hab. Kauri Point. 



Type in my collection. 



Remarks on some Non-marine Shells. 



Thaumatodon varicosa, Pfeiffer. 



All the shells collected near Waiuku have two teeth, one on 

 the body- whorl and another at the base of the columella margin. 

 This is the case with both adult and juvenile specimens. 



Ptycodon pseudoleiodon, Suter. 



This shell is found in Waiuku in the adult stage normal and 

 also with combinations, 3 • 1 • 7 ; 3 • 1 • 10 ; 3 • 1 • 12, &c. 



Phrixgnathus phrynia, Hutton. 



This and other shells are found in Waiuku with callous 

 patches indicating the development or loss of throat teeth. 



Laoma marina, Hutton. 



This occurs (adult) with the throat teeth of L. nerissa, Hutton. 



Shells to be added to Fauna List. 



The following shells in my collection should be added to or 

 reinstated in the fist of our fauna : — j 



Sigaretus undulatus, Hutt. Cape Maria van Diemen. 



AncUla depressa, Sow. Orua Bay. 



Terebra venosa, identified by Mr. Suter. Cape Maria van Diemen 



and Port Waikato. 

 Pyrgulina rugata, Hutt. Takapuna. 

 Leuconopsis inermis, Hed. Takapuna. 

 Pholadidea spathulata, Sow. Narrow Neck. 

 Venericardia amabilis, Desh. Cape Maria van Diemen. 

 Venerupis carditoides, Lam. Takapuna. 

 Philene teres, Hed. Cheltenham Beach, Auckland. 



Also the following two shells, which have been omitted from 

 the " Index Faunae ": — 



Venus (Gomphina) maorum, Smith, J., of Mai. 1902, ix., pt. 4. 

 Unio (Diplodon) websteri, Simpson, " Nautilus," July, 1902. 



