212 Transactions. — Zoology. 



Akion fuscus, Miiller ; A. incommodus, Hutton. 



Dark grey with a lateral stripe on the mantle and a longitudinal band 

 on each side black ; sole of foot yellow. Dentition, 32-1-32. 



Hab. Dunedin. 



Zonites cellakius, Miiller ; Hyalina corneo-fulva, Pfeiffer. 



Shell sub-discoidal, pellucid, smooth, polished ; light greenish horn ; 

 whorls 5 ; umbilicus moderate. Greatest diameter *5 inch. Dentition, 

 14-1-14. 



Hab. Bay of Islands ; Auckland ; Napier. 



II. corneo-fulva is described as " sub -orbicular," but the dimensions 

 given do not agree. 



Limax maximus, Linne\ 



Light brown, usually with spots and stripes of black on the back and 

 sides. Length sometimes 4 inches. Dentition, 76-1-76. 



Hab. Dunedin. 



Limax flavus, Linne\ 



Yellowish or ashy brown with pale spots ; head and eye-peduncles bluish, 

 tentacles white ; the tail keeled. Length sometimes 3 inches. Dentition, 

 60-1-60. 



Hab. Dunedin; Greymouth. 



Limax agrestis, Linne, L. molestus, Hutton. 



Whitish, greyish, black, or yellowish, sometimes spotted ; eye-peduncles 

 and tentacles darker ; tail shortly keeled. Length about 1 inch. Den- 

 tition, 45-1-45. 



Hab. Auckland, Wellington, Nelson, Greymouth, Christchurch, Dun- 

 edin, etc. 



Art. IX. — Notes on some Marine Mollusca, with Descriptions of new Species. 

 By Professor F. W. Hutton. 

 [Read before the Philosophical Institute of Canterbury, 7th June, 1883.] 

 Plate XL, figs. 1-5. 

 Ophicardelus costellaris, Adams (Tralia). PI. xi., fig. 1. 

 Dentition, 55 ~ ~ 5 . Laterals, 31. Central tooth oval with a deep poste- 

 rior indentation, or thinning ; the reflexed portion very small. Laterals 

 rather oblique, unicuspid, with a broad cutting point ; in the outer laterals 

 the cusp, or reflexed portion, becomes emarginate or notched at the end. 

 Marginals rather longer than broad, divided into two portions, the inner of 

 which is the larger, each with a small cutting point. 



