194 AMERICAN JOURNAL 



Observations. — The above species is terrestrial in its habits, 

 living on the ground, under rotten logs and decayed leaves ; 

 the animal, in common with all such, is black or of a dark 

 color. It has been referred by Mr. Cuming (together with one 

 much larger in size) to Navigatoria, Pfr. It differs from that 

 species in shape, size, form of lip and habits, to say nothing of 

 the localities. The above is rare, inhabiting but two small 

 valleys on the island of Kaiatea. 



2. Partula ovalis, Pse. 



T. abbreviato-ovata, conica, solidiuscula, dextrorsa, umbili- 

 cata, longitudinaliter lineis incrementis subrugata, transversim 

 tenuissime striata; anfr. 5, plano-convexis, ultimus spira supe- 

 rans, subventricosus; apertura recta, oblonga, auriculata, basi 

 rotunde angulata ; labro intus calloso, supra medio subdentato ; 

 columella callosa, recta, verticalis, basi angulata intense cas- 

 tanea ; lutea fasciata, aut omnino castanea. 



Dimensions. — Long. 20, diam. 11 mill. 



Shell abbreviately ovate, conical, rather thin, dextral, urn- 

 bilicate, somewhat roughened longitudinally by fine irregular 

 lines of growth, transversely very finely striated; whorls 5, 

 flatly convex, the last slightly swollen and considerably longer 

 than the spire ; aperture straight, oblong, auriculate, at the 

 base roundly angulate; columella callous, straight, vertical, 

 angulate at its base ; outer lip callous within ; the callosity not 

 reaching the body whorl, and forming a ^lunt tooth at its 

 termination. Color, dark chestnut, encircled by a single 

 broad }^ellowish band, or wholly dark chestnut. 



Observations. — This species is terrestrial in its habits. Eare, 

 confined to a single valley on the island of Raiatea. 



3. Partula vittata, Pse. 



Description. — T. pyamidato-oblonga, parum niticla, solidn, 

 longitudinaliter rugata, anguste perforata; anfr. 5, plano-con- 

 vexis, ultimo ad basi subcoarctato; apertura oblongo ovalis, 

 verticalis, interdum subobliqua, dentata ; labro oblique ex- 

 panso, intus calloso, medio tuberculato ; columella vix ex- 

 panso, subcalloso. Intense castanea, flavicante obscure fas- 

 ciata, interdum longitudinaliter strigata, rarissime omnino 

 fulvescente, labro purpurascente tincto. 



Dimensions. — Long. 24, diam. 12 mill. 



Shell pyramidally oblong, solid, longitudinally roughly and 

 irregularly striated, closely umbilicate ; whorls 5, flatly convex, 

 the last somewhat contracted at its base ; aperture oblong-oval, 

 vertical, sometimes slightly oblique, dentate; lip flatly and 



