OF CONCnOLOOY. 195 



obliquely expanded, callous within, tuberculated about the 

 middle ; columella but slightly callous and but little expanded. 

 Dark chestnut color, with an indistinct yellowish band, some- 

 times striped longitudinally, rarely wholly yellowish ; lip 

 stained with purple. 



Observations. — A terrestrial species. 



4. Partula citrina, Pse. 



Description. — T. pyramidato-oblonga, solida, nitida, angustc 

 umbilicata; anfr. 5, convexis, sutura marginata; apertura 

 oblongo-ovalis, verticalis ; labro planulatim obliquo, medio 

 versus tuberculatim calloso ; columella superne callosa. Fla- 

 vicante, obscure longitudinaliter strigata. 



Dimensions. — Long. 25, diam. 12 mill. 



Shell pyramidally oblong, solid, shining, closely umbilicate; 

 whorls 5, convex, suture marginated ; aperture oblong-oval, 

 vertical ; lip flatly oblique, tuberculately callous a short dis- 

 tance above the middle; columella callously thickened above. 

 Citron or yellowish horn color, faintly striped longitudinally. 



Ohservations. — The two last-described species have been re- 

 ferred by Mr. Cuming to faha, Martyn. The former of the 

 above is quite distinct, both as to animal and shell. The 

 latter we may eventually class as a var. of faha, which is a 

 very interesting species, passing around the whole island of 

 Eaiatea near the shores, and hybridizing with the species up 

 the valleys, or throwing oft' varieties up the several valleys. 



5. Partula trilineata, Pse. 



Description. — T, elongato-ovata, solida, umbilicata, longi- 

 tudinaUter striis irregularis subrugata, sub lente transversim 

 striata; anfr. 4 J, piano- convexis, sutura subimpressa; apertura 

 subrotunde ovata, vix obliqua, dentata, J longitudinis testae 

 sub^qnans ; labro rotunde incrassato; columella supernd no- 

 dose callosa. Flavicante, spira plerumque rufescente-fulva, 

 anfr. ultimo longitudinaliter castaneo strigato, fasciis tribus 

 intense castaneis cingulato, sutura albida marginata. 



Var. 1. Omnino intense castanea, longitudinaliter strigata, 

 sutura pallidc marginata. 



Var. 2. Omnino flavicante, longitudinaliter strigata. 



Shell elongate ovate, solid, umbilicate, somewhat roughened 

 longitudinally by coarse irregular striae, very finely striated 

 transversely; whorls 4J, flatly convex, suture somewhat im- 

 pressed ; aperture rather roundly ovate, slightly oblique, den- 

 tate, less than one-half the length of the shell ; lip broadly and 

 roundly thickened; columella nodosely callous above. Cream 



