98 MOLLUSCA. 
group with H. flammea, Quoy. These are smaller, and more glo- 
bular; the first has no reflected lip, and the second no radiations 
beneath. 
Figure 106, shell, with the animal, and 1064, side of the shell, 
magnified two and a half diameters; 1060, pit at base of the colu- 
mella; 106 c, natural size. 
He ictna musiva (Gould). 
Testa parva, solidula, sub-globosa, polita, rufo-viridis, supra lineols 
flexuosis albidis radiata: spira anfractibus quatuor rotundatis : aper- 
tura lunata ; peristomate reflexo, allido, ad basim rectangulart ; colu- 
mella recta. 
Helicina musiva, Goutp ; Proceed. Boston Soc. Nat. Hist., 11. 201. 
March 1847. Expedition Shells, 36. 
A small, rather solid, polished, sub-globular shell, similar in its co- 
lours and markings to H. fulgora, but is smaller, more globose, rounded 
at periphery, the light-coloured lines are less flexuous, not so delicate, 
the fawn-coloured and whitish stripes being about equal, and termi- 
nating at the rounded periphery. ‘The aperture is smaller and less 
transverse, and there are but four whorls. The triangular space of 
the columella is ill-defined, and the callus is very delicate and glossy. 
It is distinguished from H. laciniosa, Migh., by its zigzag colours, its 
want of revolving lines, and its reflected lip. 
Axis one-tenth of an inch ; base three-twentieths of an inch. 
Found among bananas at the islands of Manua and Upolu. Cow- 
thouy. 
Closely allied to the preceding, but smaller, more globular, not cari- 
nated, and destitute of radiated colouring beneath. 
Figure 107, shell, with the animal, and 107 a, front of the shell, 
magnified three diameters ; 107 6, natural size. 
