172 RADULIDZ. 
Common in the North, very rare in the South. South Australia. 
(Angas.) Chatham Islands. 
Mr. Tenison-Woods regards this as identical with Pecten fumatus, L. 
FAMILY—RADULID&. 
Body produced, in part linguiform. Mouth surrounded by tenta- 
cular filaments. Mantle without any ocelli on the edge, the margin 
fringed with tentacular filaments ; anal tubes cylindric, visible externally. 
Foot compressed, not byssiferous. Shell gaping at the sides, usually 
white. Hinge edentulous. 
Genus, LIMA—Brug. 
Shell equivalve, compressed, obliquely oval; anterior side straight, 
gaping ; posterior rounded, usually close ; umbones apart, eared ; hinge 
area triangular, cartilage pit central ; adductor impression lateral, large, 
double ; pedal scars two, small. 
L. zealandica, Sowerby, P.Z.S., 1876, ~. 754, pl. Ixxv., f. 1. 
Shell broad, thick, rather inflated, radiately ribbed, slightly gaping on 
each side; front side obliquely produced and concavely flattened, 
forming an oblong lunule terminating below the middle ina decided 
angle; the other side obliquely rounded ; ribs eighteen in number, 
rather square, thick, scaled, sometimes of a teddish- brown color ; inters- 
tices between the ribs smooth, concave, equal in width to the nbs; 
auricles small, sloping ; umbones acute, incurved (Sowerby). 
This is the Z. sguamosa of former lists. 
Stewart Island. 
L. angulata, Sowerby, Zhes. Conch., Reeve’s Conch. Ic. f- 13. 
Shell ventricose, white, obliquely sub-trigonal ; anteriorly angular at the 
ventral margin, very finely radiately striated; posterior ventral margin 
finely dentated (Sowerby). 
North Island. Panama and New Caledonia. 5S. Australia. (Angas). 
L. japonica, 4. Adams, P.Z.S., 1863, p. 509; Reeve, Conch. Lc., 
jf. 21. Shell ovate, ventricose, broad, rather straight, nearly equilateral, 
rayed with numerous strong, rather sharp ribs; ventral margin scarcely 
obliquely produced; hinge margin broad; auricles nearly equal; 
umbones produced (Sow.) 
Stewart Island. Japan. 
Of the same form as Z. dud/a/a, but smaller and with smooth rays. 
FAMILY—SPONDYLID. 
Mouth with foliaceous lips; palps short, oblong, pointed. Mantle 
freely open, the margins thickened, and furnished with numerous rows 
of tentacular cirri, many of which are truncate, and end in a smooth 
convex surface ; gills large, equal, separate. Foot small, cylindrical, 
