Freshwater i^hells from Uvtuma Island. 521 



ad apicem rotuiidata, obtusa ; anfractus 5, convexiusouli, lineis 

 incrementi tonuibus, striisquo spiraliljiis tenuissimis (in anfr. ult. 

 plus minus obsoletia) confertis sculpti, ultiiuus antice baud 

 desceudens ; apcrtura ovata, intus fuscescens, longit. totius \ sub- 

 a?quans; peristoma album expansum et refloxum, vix incraa- 

 satum. 

 Lougit. 14 millim., diara. 9 ; aportura intus G longa, 3.] 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 Stenogyridae. 



5. Opeas juncea (Gould). 



Buliynus Junceus, Gould, U.S. Explor. Exped. vol. xii. p. 76, Atlas, 

 figs. 87-87 6; Pfeiffer, Mon. Hel. vol. ii. p. 220. 



Hob. Sandwich Islands, Society Islands, Fiji, Upolu. 



As is well known, certain forms of this group (Steno- 

 gyridte) have an enormous geographical range ; hence it is 

 not surpiising that this species should occur at such remote 

 localities as tiie above. 



Family AchatinellidEe. 



6. Tornatellina apertay Pease. 



TornatelUna aperta, Pease, Proc. Zool. Soc. 186i, p. 673 ; Pfeiffer, 

 Mou. Hel. vol. vi. p. 264. 



Hah. 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 Succineidae. 

 7. Succinea rotumana. 



Testa ovata, parva, cornea, lineis incrementi teuuibus striata ; spira 

 brevis, rufescens ; anfractus 2|, perconvexi, celeriter accres- 

 centes, ultimus maximus, oblique valde deseendens ; apertura 

 ovata, longit. totius | fere aequans, intus plus minus iridescens ; 

 columella tenuis, arcuata, superne anguste reflexa, appressa, 



Longit. 8| millim., diam. 3| ; apertura 6 longa, 3J lata. 



A small species, with a mammiform spire and rather like 

 Ann. (& Mag. N. Hist. Ser. 6. Vol. xx. 35 



