Ireshwater Shells from Rotuma Island. o21 
ad apicem rotundata, obtusa; anfractus 5, convexiusculi, lineis 
incrementi tenuibus, striisque spiralibus tenuissimis (in anfr. ult. 
plus minus obsoletis) confertis sculpti, ultimus antice haud 
descendens ; apertura ovata, intus fuscescens, longit. totius 3 sub- 
gequans; peristoma album expansum et reflexum, vix incras- 
satum. 
Longit. 14 millim., diam. 9; apertura intus 6 longa, 32 lata. 
A small species, distinguished by its style of coloration and 
general form. Named after Mr. R. B. Leefe, who first 
discovered the species. 
Family Stenogyrida. 
5. Opeas juncea (Gould). 
Bulimus junceus, Gould, U.S. Explor. Exped. vol. xii. p. 76, Atlas, 
figs, 87-876; Pfeiffer, Mon. Hel. vol. ii. p. 220. 
fab. Sandwich Islands, Society Islands, Fiji, Upolu. 
As is well known, certain forms of this group (Steno- 
gyridz) have an enormous geographical range; hence it is 
not surprising that this species should occur at such remote 
localities as the above. 
Family Achatinellide. 
6. Tornatellina aperta, Pease. 
Tornatellina aperta, Pease, Proc. Zool. Soc. 1864, p. 673; Pfeiffer, 
Mon. Hel. vol. vi. p. 264. 
Hab. Tahiti (Pease); Rotuma (Gardiner); Tongatabu 
(Leefe). 
The type from Tahiti is a little larger and somewhat 
browner than the shells from Rotuma, but is similar in other 
respects. The bidentate columellar projection within the 
aperture is very remarkable and readily distinguishes this 
peculiar form. 
Family Succineide. 
7. Succinea rotumana. 
Testa ovata, parva, cornea, lineis incrementi tenuibus striata ; spira 
brevis, rufescens; anfractus 24, perconvexi, celeriter accres- 
centes, ultimus maximus, oblique valde descendens; apertura 
ovata, longit. totius # fere equans, intus plus minus iridescens ; 
columella tenuis, arcuata, superne anguste reflexa, appressa. 
Longit. 83 millim., diam. 37; apertura 6 longa, 34 lata. 
A small species, with a mammiform spire and rather like 
Ann. & Mag. N. Hist. Ser. 6. Vol. xx. 35 
