Se So 
GASTEROPODA. 129 
AMNICOLA COROLLA (Gould). 
Testa parva, ovato-conica, fusca: spira acuta, anfractibus ad sex ven- 
tricosis, posticé constrictis, angulo submediano aculeos numerosos or- 
dinatim radiantes gerente, instructis; sutura haud impressa: aper- 
tura rotundata ; labiis continuts. 
Melania corolla, Goutp; Proceed. Boston Soc. Nat. Hist., ii. 223. 
June 1847. Expedition Shells, 44. 
AnimaL with a very long proboscis; tentacles flagelliform; eyes 
large, and on large basal pedicles; anterior angle of the foot largely 
developed ; above, pale dove-colour; beneath, flesh-colour. 
SHELL small, ovate-conical, turreted, of a dead dusky colour. 
Whorls about six, ventricose, the last large, and each one strongly 
angular and scaffolded posteriorly, the angle bearing a series of deli- 
cate radiating prickles, of which there are as many as twenty on the 
last whorl; apex acute; suture not impressed. Aperture rounded, 
ovate, scarcely effuse at base; lip simple, whitish, rounded on the 
inside, continuous, and slightly attached across the penultimate whorl. 
Length three-tenths of an inch; breadth one-fifth of an inch. 
Inhabits Banks’ Peninsula, New Zealand. Common in fresh- 
water streams on plants. Pickering ; Brackenridge. 
This beautiful little shell, somewhat resembling M. spinulosa, is 
readily recognised by its coronets of numerous small radiating prickles 
on the angles of the whorls. 
The form of the animal, the continuous lip and nearly circular 
aperture, and also the sub-spiral operculum, place it in the genus Amni- 
cola, rather than Melania. A similar species was also found by Pro- 
fessor Adams, in Jamaica, which he has called Melania spinifera ; 
and another, A. celiata, Gould, by Dr. Perkins, in Liberia. 
Figure 149, the animal seen from below; 1494, animal with the 
shell, as in motion ; 149 0, aperture of the shell. 
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