212 Transactions.— Zoology. 
Arion ruscus, Müller; 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, 82-1-82. 
Hab. Dunedin. 
ZONITES cELLARIUS, Müller; 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. 
H : corneo-fulva is described as ‘ sub-orbicular,’” but the dimensions 
given do not agree. 
Lmax maximus, Linné. 
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 rLavus, Linné. 
Yellowish or ashy brown with pale spots; head and eye-peduncles bluish, 
tentacles white ; the tail keeled. Length sometimes 8 inches. Dentition, 
Hab. Dunedin; Greymouth. 
LIMAX AGRESTIS, Linné, 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, ete. 
Art, IX.— Notes on some Marine Mollusca, with Descriptions of new Species. 
By Professor F. W. Hurron. 
[Read before the Philosophical Institute of Canterbury, 7th June, 1883.] 
Plate XI., figs. 1-5. 
OPHICARDELUS COSTELLARIS, Adams (Tralia). Pl. xi., fig. 1. 
Dentition, se" Laterals, 81. 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, - 
