112 MOELLENDORFF : LAND SHELLS OF CAROLINE ISLANDS. 



Fam. BULIMIDAE. 

 19.— PartUla rufa (Lesson). 



Partula rufa, Less., Voy. Coqu. Zoo]., 1830, ii, 2, p. 324.— Pfr., 

 Mon. Hel., iii, p. 449. — Marts., Conch. Mitth., 1881, i, 

 p. 94. — Bulimus rufus, Pfr., Mon. Hel., ii, p. 229. 



/fab. — Kusaye, Ualan (Lesson). 



Prof. V. ALartens declares this species to be identical with the 

 Partula of Ponape, which is well known by the name of P. guaDiensis. 

 Lesson's description gives, however, the dimensions as 4:8 lin. or 

 about 9:18 mm. If these measurements were correct, then the Partula 

 of Ualan must be a much smaller and more slender shell than <jua- 

 mensis. I therefore treat the Ponape races as sub-species. 



19a.— Partula rufa, sub-sp. montana, nov. 



Bulimus gaaniensis, Pfr., Phil. Abb., ii, p. 113, Bui. t. 4, f. 9. — 



Mon. Hel., ii, p. 13. — Partula guamcjisis, Pfr., Mon, 



Hel., iii, p. 446. — P. rufa, Marts., Conch. Mitth., 1881, 



i, p. 95, t. 17, figs. 12—16. 



Hal). — Ponape, ruins of Nanmatal (Finsch), in the hills (Etscheid, 



Kubary). 



\Vhorls 5, very distinctly spirally striate, rather solid. Diam. 15, 

 alt. 26 mm. (Pfr.), i6'26 (Marts.), 1826 (the broadest of my own 

 specimens). 



The name guamensis cannot be retained inasmuch as this mollusc 

 does certainly not live on the island of Guam, where my friend 

 Quadras collected more than two months without finding it. 



19b.— Partula rufa, sub-sp. grandis nov. 



Much larger, diam. 19, alt. 30*5 mm., less solid, spiral sculpture 

 somewhat less marked, peristome more expanded, less labiate, 5f to 

 nearly 6 whorls. 



Hah. — Ponape, coast region (Etscheid, Kubary). 



There are three colour variations, viz., dark purple-brown with 

 violet lip (typical), ra.^fanea, pale chestnut coloured with white lip, 

 and favegce7is, pale greenish yellow. The last-named albino is rather 

 rare. 



Fam. PUPIDAE. 



20.— Vertigo (Ptyehoehilus) eapensis (Bttgr.). (rectius yapensis), 



Pujja (Pti/chocJiihis) eajiensis, Bttgr., in Marts. Conch. Mitth., 



1881, i, p. 56, t. II, f. II. 

 /fab. — Yap (Boettger), Palao or Pelew Islands (Kubary). 



