MOELLENDORFF : LAND SHELLS OF CAROLINE ISLANDS. I09 



"The jaw (fig 2) is regularly arcuate, but became somewhat dis- 

 torted in mounting, hence the different form as shown in ray drawing. 

 It consists of nunierous, partly unequal, separate vertical lamellae, 

 which are distinctly reticulated by numerous and close transverse 

 striae, a feature sometimes observed in Geronfia and Phasis, though 

 much less conspicuous. 



"The radula (fig. 3) has the formula 10-5-T-5-10 and there are 

 about no transverse rows of these teeth. The last marginal tooth 

 consists of a minute plate only, the following has a low mesocone, the 

 13th a small entocone besides the mesocone, on the 12th the entocone 

 is bifid, but there is still no ectocone. The nth marginal has a 

 minute ectocone, a mesocone and a (not alw^ays) bifid entocone. The 

 loth to 8th marginals become higher and narrower, the ectocone 

 is rudimentary, but the mesocone and entocone are longer, the latter 

 no more bifid. The 7th and 6th tooth may be considered to form 

 the transition to the laterals ; the plate is becoming higher, the meso- 

 dont longer, with its cutting point reaching beyond the posterior 

 margin of the base, the endodont is better developed than the ectodont. 

 The five laterals have a long mesodont, its cusp extending beyond the 

 base, whilst the side-cusps remain small, the entocone however being 

 a trifle larger. 



" The rhachidian tooth, also tricuspid, is narrower, the mesodont 

 more slender and shorter, not reaching to the posterior margin of the 

 plate, and the side-cusps are minute. 



" The foregoing shows that it is not only the shell that resembles 

 certain forms of New Zealand Flammulina ; the presence of a peri- 

 podial groove, a caudal pore, the plaited jaw and the radula clearly 

 indicate that it must be classed under Flammulina." — Henry Suter. 



This confirmation of my classification is interesting for two reasons. 

 Firstly it proves that shell characters are not by any means so unim- 

 portant as modern malacology tends to consider them, and secondly 

 that the Plienacolielicidae extend much more to the North than hitherto 

 known, the most northern habitat observed being New Caledonia. 



Fam. PATULIDAE, MUdfif. 

 (Endodontidae, Pilsbry, ex parte.) 



If we expunge Flamimdina from Pilsbry's ill-assorted family, there 

 remains no reason to change the name published long before his. 



12.— Chapopa ualanensis (Pease.) em. 



Helix oualanensis. Pease, Amer. Journ. Conch., 1866, ii, t. 21, f. i. — 

 Helix (Pundum) oualanejisis, Tryon, Man. Conch., iii., p. 



