188 Mr. G. B. Sowerby oji mio 



A little pellucid uliite shell, with an opaque white callus 

 covering the uinhilical region. It is very like 7\ cancellatwn, 

 Tate, but thinner, and without the sculpture. 



Solariella tenuis 



sp. 



Testa conico-orbicularis, depressiuscula, tenuis, late urabilieata, 

 albida, pallida aurantio strigata ; spira obtuse conica, gradata ; 

 anfractus 4, rotunde-convexi, spiraliter lirati, liris in anfractu 

 peuultimo 3, in anfractu ultimo numerosis, evanidis ; sutura late 

 impressa ; basis rotuude couvexa ; umbilicus perspectivus ; aper- 

 tura circularis ; peristoma continuum, tenue. 



Alt. 2, diam. 2| mm. 



A delicately coloured, thin, globosely conical shell with a 

 perspective umbilicus. 



I know of no species very similar to this ; it might easily 

 be mistaken for one of the minute Cyclostomida?, having some- 

 thing the look of a Cyclotopsis. 



Fara. Littorinidae. 

 Fossarina lineata, sp. n. 



Testa oblique ovata, perforata, luteo-albida, lineis virido-fuscis 

 duplicatis spiraliter cincta, hie illic irreguiariter fusco maculata ; 

 spira brevis, obtusa ; anfractus 4, rotundati, oblique minutissime 

 striati ; anfractus idtimus late obliquus ; basis convexa, area 

 umbilicali alba, oblique late excavata, conspicue filo-striata ; 

 umbilicus profundus ; apertura subcircularis, ampla, intus viridis, 

 lineata, Itevis ; labrum tenue ; columella arcuata, leviter incras- 

 sata, alba, postice teauiter effiisa. 



Alt. 4, diam. 4 mm. 



This shell partakes of the form and general characters 

 common to the genus Fossarina. It is rounder and less 

 oblique than F. Brazieri^ Angas, and principally characterized 

 by its greenish-brown spiral lines. 



Fam. Fossaridffi. 

 Fossarus oblongus, sp. n. 



Testa oblongo-ovata, alba, tenuis, subpellucida, angustissime rimata; 

 spira brevis, obtusa ; anfractus 3|, convexi, supra obtuse angulati, 

 supra angulura leviter planulati, sutura impressa sejuncti ; ultimus 

 oblongus, spiraliter multiliralus, leviter oblique plicatus ; apertura 

 elougato-ovata ; labrum tenue; columella planulata, leviter effusa. 



Alt. 3^, diam. 2| mm. 



