522 Land and Freshwater Shells from Rotuma Island. 
S. venusta, Gould, from the Hawaiian Islands. Like many 
other so-called species of this genus, the present one offers 
very slight distinguishing features from several others. 
Family Helicinide. 
8. [Helicina modesta, Pfeiffer. 
Helicina modesta, Pfr. Proc. Zool. Soc. 1853, p. 52; Mon, Pneumon. 
vol, ii. p. 186; Sowerby, Thes. Conch. vol, iii. pl. cclxxi. figs. 221, 
222; id. Conch. Icon. vol. xix. pl. xxix. figs. 259 a, b. 
Hab. Solomon Islands and New Hebrides. 
9. LTelicina fulgora, Gould. 
Helicina fulgora, Gould, U.S. Explor. Exped. vol. xii. p. 97, Atlas, 
figs. 10b, ¢; Pfeitfer, Mon, Pneumon. vol. i. p. 401. 
Hab. Samoa, New Hebrides, Tonga Island, Namuka; 
Rotuma (Gardiner). 
HM, articulata, Pfr., H. zebriolata, Pfr., and H. Brenchley?, 
Baird, appear to be synonyms of this species. 
Family Cyclostomatide. 
10. Omphalotropis rotumana. 
Testa ovata, superne acuminata, anguste umbilicata, rufescens vel 
fuscescens, albo irregulariter picta et strigata, interdum ad _ peri- 
pheriam albo vel rufo cincta ; spira elongata, conoidea, ad apicem 
mediocriter acuminata; anfractus sex, lente accrescentes, con- 
vexiusculi, sutura subprofunda sejuncti, lineis incrementi striati, 
ultimus ad peripheriam tenuissime carinatus et circa umbilicum ~ 
carina altera crassiuscula instructus; apertura piriformis, intus 
rufescens vel fuscescens, longit. totius 4 haud sequans; peristoma 
intus leviter incrassatum, continuum, marginibus columellari et 
basali leviter expansis. 
Longit. 63 millim., diam. 4; apertura 3 longa, 23 lata. 
Larger than O. solidula, Pfeiffer, from Lord Howe’s Island, 
with more varied colour-markings, a wider umbilicus, and a 
stronger keel; also larger than O. vitéensis, Liardet, from 
Fiji, broader in form and narrower in the umbilicus. 
Family Auriculide. 
11. Pythia scarabeus, Linn. 
Rather a small form. 
12. Melampus luteus, Quoy and Gaimard. 
