128 PEOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



species of this genus has previously been recorded from Lanai ; 

 Mr. Perkins found seven. 



6. Leptachatina semipicta, n.sp. 



Testa imperforata, dextrorsa, acuminato-ovata, tenuis, nitida, 

 pellucida, fusco-cornea, leviter striatula, apice obtusula, pallidiore ; 

 sutura modice impressa ; anfr. 6-6^, plano-convexi, primi striatuli, 

 ultimus f altitudinis testte sequans, fere Isevis, apertura ovato- 

 pyriformis ; peristoma margine dextro recto, incrassatulo, columellari 

 angusto, adnato, parietaii nullo. Alt. 8, diam. max. 4 mm. 



I£ab. — Mountains of Lanai, behind Koele (Perkins). 



There are, including young shells, about forty examples of this 

 species. Most of them have the lower half of the last whorl of a 

 lighter colour ; some, however, are unicolorous. 



7. Leptachati^sta Perkinsi, n.sp. 



Testa dextrorsa, ovato-fusiformis, tenuiuscula, sub lento striatula, 

 fuscescens, nitida, semipellucida, apice obtusulo, albido-corneo ; sutura 

 simplex, leviter impressa ; anfr. 6-63-, plano-convexiusculi, ultimus 

 -|- altitudinis testae sequans ; apertura pyriformis ; peristoma margine 

 dextro leviter incrassato, intus albido-corneo, columellari angusto, 

 parietaii nullo. Alt. 10-5, diam. max. 5 mm. 



Hah. — Mountains of Lanai, behind Koele (Perkins). 



This and the next species are very closely allied, and may be 

 separated by the fact that L. Smithi is of a lighter colour, smaller 

 size, and is a trifle wider in proportion to its length. In L. Smiflii 

 the last whorl is slightly longer in proportion to the total length 

 of the shell. 



8. Leptachatina Smithi, n.sp. 



Testa dextrorsa, ovato-fusiformis, tenuiuscula, snb lente striatula, 

 pallido-cornea, nitida, pellucida, apice obtusulo, albido-corneo ; sutuia 

 simplex, leviter impressa ; anfr. 6-6i, plano-convexiusculi, ultimus 

 plus quam § altitudinis testa? tequans ; apertura pyriformis; peristoma 

 margine dextro leviter incrassatulo, intus albido-corneo, columellari 

 angusto, parietaii nullo. Alt. 9-25, diam. max. 4 9 mm. 



Mab. — Mountains of Lanai, above Koele (Perkins). 



For remarks on this species see those on the preceding one. 



9. Amastra longa, n.sp. 



Testa dextrorsa, elongata, subperforata, solida, substriata, epidcr- 

 mide nigro-fusco induta, apice acutiusculo ; sutura simplex ; anfr. 7, 

 modice plani, ultimus plus (|uam |- altitudinis testae sequans ; apertura 

 sinuato-semiovalis, intus albida ; columella superne parum plieata, 

 tum lamina parva transversim munita ; peristoma simplex, rectum. 

 Alt. ir75, diam. max. 6*5 mm. 



