APORRHAID. 67 
is sparingly spotied with red. A single specimen is in the Colonial 
Museum, Wellington, from the Bay of Islands. 
Genus, TRIVIA-—-Gray. 
Shell ovate, transversely ribbed, no distinct fold on the inner lip. 
T. australis, Zamark, 1c. x., p. 545; Reeve, Conch. Ic, f. 138 ; 
Chenu, f. 1734. Transverse strize interrupted by an impressed median 
line ; spire visible ; white, with one or two flesh-coloured spots on the 
back, and the two extremities of the same colour. 
Length, -4 ; breadth, -32. 
Hauraki Gulf, in various places. Australia and Tasmania. 
T. coccinella, Zamark, .c.,x., p. 544; Reeve, Conch. fc., f. 129; 
Chenu, f. 1732. Transverse striz deep, not interrupted on the back ; 
spire hidden ; above pale pink, with a few obscure spots of brown, below 
white. 
Length, -4; breadth, ‘25. 
Bay of Islands. (Mr. C. Traill.) 
Reeve considers this to be the same as 7: euzopea. I have no New 
Zealand specimens for comparison. It does not appear to be known in 
Australia. Rr 3s 
FAMILY—APORRHAID:. 
Radula with seven series of teeth (3. 1. 3.,) the median hooked, 
denticulated, the first lateral uncinate, the second and third claw-shaped. 
Rostrum elongate, tapering ; tentacles subulate, bearing the eyes on 
slight prominences at their external bases ; mantle with the outer margin 
expanded or lobed, and.with a rudimentary siphon in front, bent to the 
right ; foot small, oblong, simple ; operculum annular, ovate or pointed, 
the nucleus small apical. Shell with the canal bent to the nght ; outer 
lip sinuous, lobed, or digitate, 
Genus, STRUTHIOLARIA—Lamark. 
Mantle with the outer edge simple ; operculum unguiculate, with the 
nucleus apical. Shell oblong-oval ; spire accuminated ; apex obtuse ; — 
aperture with a short canal in front; columella thickened, polished, 
truncate anteriorly ; outer lip thickened and sinuous. 
New Zealand, Australia and Kerguelen’s Land only. 
Tentacles subulate, lateral; eyes small on outer side of the base; 
lingual membrane thin; teeth (3. 1. 3.,) central sub-ovate; apex 
truncated, reflexed, entire; lateral slender, subulate, curved; apex 
acute, entire ; inner largest ; foot small, oblong. (Gray.) 
S. papulosa, d/artyn; Chenu, f. 1649 and 1652 ; Murex stramt- 
neus, Gul.; Woodwara’s Manual of the Mollusca, pl. 4, f. 6; S. nodu- 
losa, Lamark; S. papulosa and S. vermis; Reeve, Conch. Lc., fi 3 and 4. 
