MOELLENDORFF : LAND SHELLS OF CAROLINE ISLANDS. II3 



21.— Vertigo (Ptyehochilus) ponapiea, n. sp. 



T. perforato-rimata, ovato-oblonga, tenuiter et distanter costulata, 

 sericina, brunnea. Spira subtus sub-cylindrica, sursum conoidea, apice 

 obtuso. Anfr. 5 modice convexi, ultimus basi sub-compressus, extus 

 pone aperturam profunde et longe scrobiculato-impressus. Apertura 

 fere verticalis, rotundato-trapezoidalis, peristoma modice expansum, 

 rufo-labiatum, extus distincte sinuatum, marginibus callo tenuissimo 

 junctis. Dentes 6, columellaris recedens ; palatales 3, inferi 2 pro- 

 fundi, breves, tertius longus, validus ; angularis validus, longe in- 

 trans, parietalis a margine remotus, angulari approximatus. 



Diam. i, alt. 175 mm. 



Hah. — Mpomp, Ponape (Kubary). 



This minute shell belongs to the group of V. fantiUa, Gld., and 

 might be considered, iike the preceding form, to be merely a repre- 

 sentative sub-species of that species widely distributed over Polynesia. 



22.— Leucoehilus pedieulus (Shuttl.). 



See Bttgr. in Marts., Conch. Mitth., i, p. 65. 



Hab. — Yap (Kubary). 



Found, according to Boettger, on the Marquesas, Society, Hervey, 

 Samoa, Tonga, Viti, Ellice, Hapai and Marshall Islands, New Cale- 

 donia and Hawaii, to which I can add the Mariannes and Philippine 

 Islands. It seems to be easily introduced with cultivated plants. 



Fam. STENOGYRIDAE. 



23.— Pposopeas carolinura (Marts.). 



Stenogijra Carolina, Marts., Conch. Mitth., 1881, i, p. 93, t. 17, 



figs. 6—8. 



Hah. — Hogolu = Ruk (Kubary). 



A rather large species, 5-0- : 22 mm., related to the Philippine 



Prosopeas like pagoda, Semp., and quite isolated in the Micronesian 



fauna. 



24.— Opeas graeile (Huu.). 



Hah. — Yap, Ponape (Kubary). 



25.— Opeas tuckeri (Pfr.). 



See Garrett, P. Z. S., 1887, p. 185. 



Hah. — Yap, Ponape (Kubary). 



Garrett justly includes Bulimus junceus, Gld., icalli, Cox, dia- 

 pkanus, Gass., souverhieanus, Gass., artensis, Gass., Stenogyra upolensis, 

 jNIouss., and 7iovnngyrata, Mouss., in the synonymy of this widely 

 distributed mollusc, but I doubt very much that O. pauaijense, Pfr., 



