VENERID&. 151 
A. grayi, Zttel, Reise der Novara, Pale., p. 45, pl. xv., fi 11. 
Orbicular, solid, swollen, with distant, thin, concentric lamine, hardly 
elevated on the sides ; umbones swollen, incurved, acute; anterior side 
arched ; posterior rounded ; lunule large, oblongo-cordiform, somewhat 
impressed, striated, margined ; pallial sinus triangular, ascending, the 
angle acute (pointing above the anterior adductor impression.) 
Height, 1-4; length, 1-4 ; breadth, ‘9 (Zittel.) 
A single valve, of a recent specimen from the Chatham Islands, is 
in the Otago Museum. 
Sub-Family— Tapesine. 
Siphons free at their extremities ; foot lanceolate, byssiferous. Shell 
oblong, transverse ; hinge with the cardinal teeth compressed ; lateral 
teeth single or none. 
Genus, TAPES—Muhlfeldt. 
Siphons united as far as the middle, diverging at their ends ; 
branchial siphon crowned with arborescent tentacles; anal siphon 
ending in simple, cylindrical tentacles; mantle margin simple. Shell 
ovato-oblong, inequilateral, margin entire; three cardinal teeth in each 
valve, simple or bifid ; pallial sinus deep, oblong, horizontal. 
T. intermedia, Quwoy, Zc, ill, p. 526, pl. 84, f 9-10; Reeve, 
Conch. Lc., f- 59. Ovate, transverse, sub-truncated posteriorly, concen- 
trically striated, decussated by very fine ridiating strie ; lunule lanceo- 
late, broad ; hinge three-toothed, two of which are bifid; brownish or 
yellowish-white; interior white, or grey, more or less marked with 
violet at the posterior end. 
Height, 1°75; length, 2‘25. 
Common. Auckland Islands. 
The young shell is yellowish, more or less marked with fine purplish 
brown waved lines. ‘The Natives call this shell, and also Artemzs 
subrosea, “ hakari.” 
T. fabagella, Deshayes, Proc. Zool. Soc., 1853, p. 10; Reeve, 
Conch. Ic., f- 66. Ovate, inequilateral, rather compressed, thin, fragile ; 
anterior end shorter, obtuse ; posterior broader, obliquely truncated ; 
dorsal margin straight, ventral arched ; finely concentrically striated, 
much fewer and lamellate at the posterior end ; front and middle finely 
radiately striated ; umbones small, quite smooth; pallial sinus deep, 
trigonal, base broad; white both inside and outside. 
Height, 5; length, -75:. (Desh.) 
New Zealand. (Cuming.) 
T. galactites, Zamark, Lc, vi., p. 359; Deshayes, Cat. Veneride, 
Brit. Mus. p. 183; Reeve, Conch. Lc., f. 65. Shell rather elongately 
oblong, anteriorly obtusely angled, white, smoothly decussated through- 
out, both sides rounded (Reeve.) 
Height, 2:25; length, 2-2. 
New Zealand. (Reeve.) Australia and Tasmania. 
