OF CONCHOLOGY. 



227 



5, acutely carinate at pcripliovy ; umbilical region covei'ed with 

 a callosity, which is margined by a groove ; aperture lunar, lip 

 simple, acute. Color whitish or yellowish, ornamented with un- 

 dulating, radiating lines or bands of a reddish brown color. 



Rema?ks. — Allied to II. articulata, Pfr., inhabiting the New 

 Hebrides. 



IIelicina MaugehIyE, Gray. Var., rubicunda, Pse. 



Our MSS. species, //. rubicunda, has been classed by Mr. 

 Cuming as a var. of Maugerice. It is, however, larger and 

 more solid. The color of the basal callosity of the type is bright 

 yellow, and the whorls encircled by two broad re<ldish bands. 



The basal callosity of the above var. is of a deep blood red, 

 and the whorls of the same color, with a white line encircling 

 them at either edge. The above variations are constant and 

 distinct. 



Ilahitat. — Raiatea. 



SUCCINEA LABIATA, PeaSO. 



Description. — T. oblongo-ovata, solidiuscula, longitudinaliter 

 striata, transversim sparsim sulcata; spira mamillata; anfr. 2; 

 apertura amplissima, ovata, testam fere adaiquans ; perist con- 

 tinue ; labro incrassato ; rufescente succinea. 



Dimensions. — Long. 19, diam. 12 mill. 



Ilahitat. — Raiatca. 



Shell oblong ovate, solid, longitudinally striate, transvei'sely 

 sparsely sulcate ; spire mamiilate; whorls 2; aperture ovate, 

 widely open, nearly the size of the shell ; peristome continuous; 

 lip tliickened on its edge ; color reddish. 



Remarks. — aS'. ovata, Pse. MSS., is the S. papilJata, Pfr. 

 The above we hold to be distinct. 



Helix consimilis, Pease. 



Description. — T. depressa, sublenticuhiris, tenuiscula, utrinque 

 confertim radiatim costellat;),, supra fusco et luteo testellata, 

 infra rufo-castanea, interdum rufo-fusca strigata, late umbili- 

 cata ; anfr. 5, convexis, suturis impressis, interdum subangu- 

 latis ; anfr. ultimus medio interdum subdepressus, ad umbilicum 

 et peripheriam rotundatus ; apertura rotundato-lunaris, lamella 

 unica volvente instructa ; labro simplici, acuto. 



Dimensions. — Diam. 4, alt. 2 mill. 



Habitat. — Tahiti. 



