110 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY". 



4. Ceeithiopsis pulchekrima, n.sp. PI. VIII, Fig. 3. 



C. testa tenui, multiim attenuata, aciculari, albitla, anfractibus 13, 

 apud sutiiras canaliculatis, apud canales iino gemmularum ordine, 

 ca)terasque in partes anfractiium bino ordine similari instructis, 

 apertura subquadrata, labro tenui. Long. 4, lat. TlSmm. 



Seven specimens, mostly rather imperfect. The largest, from which 

 this description is taken, is slightly distorted in one of the central 

 whorls ; it is in very good condition, being white, elongated, very 

 attenuate, thirteen-whorled, ornamented with three rows of gemmules, 

 one row being at the canaliculate depression, just below the sutures 

 of each whorl, the other two on the normal whorl. The mouth is 

 simple, aperture squarrose. It is a very beautiful little species. 



5. Solarium (Torinia) homalaxis, n.sp. PI. YIII, Fig. 12. 



S. testa minutissima, depressa, profunde umbilicata, albescente, 

 gemmulata, supra depresso-planata, anfractibus 4, ultimo rapide 

 accrescente, ad peripheriam bicarinato, carinis rcgulari gemmarum 

 ordine decoratis, simili bino ordine circa umbilicum, inter has, infra, 

 simul ac supra, quatuor minorum gemmularum ordinibus instructis, 

 apertura quadrato-rotunda. Long. 1, lat. 2 mm. 



I alluded to this specimen when describing its congener, S. delectahile, 

 also from the same locality.^ This species differs in its more depressed 

 form, the bicarinate angles at the periphery, and its smaller size. 

 The shell is in juvenile condition, however, and may grow slightly 

 larger, the apical whorls showing this. It is an exceedingly highly 

 chased and sculptured little species. 



6. RiSSOINA EPENTROMA, U.Sp. PI. VIII, Fig. 23. 



R. testa ovata, gradata, solidiuscula, Candida, anfractibus 5, 

 undique longitudinaliter crassicostatis, costis la3vibus, interstitiis 

 transversim tenuistriatis, apertura ovata, labro cxteriore incrassato. 

 Long. 2, lat. ri5mm. 



Three specimens, one being juvenile, of a higlily sculptured little 

 species, which I have placed in Rissoina rather than in Rissoia, owing 

 to the thickened base of the aperture, the general form being more 

 in accordance with a species of the latter genus. 



The shell is gradately turreted, five-whorlcd, the whorls being 

 uniformly costate, the ribs very thick in proportion to the size of the 

 shell, and the interstices between transversely finely striate. The 

 name, from the Greek eTreurpw/na, signifying ' a delicacy,' is chosen 

 on account of the extreme beauty of this little Rissoina. 



7. Rissoina pachystoma, n.sp. PI. VIII, Fig. 4. 



R. testa solida, fusiformi, albo-cinerea, anfractibus 8, undique 

 longitudinaliter recticostatis, costis regularibus, laevibus, nitcntibus, 

 interstitiis lasvibus, apertura oblique ovata, labro exteriore multum 

 incrassato, ad basim quasi-truncato, margine columellari oblique, 

 crasso. Long. 5, lat. 2 mm. 



' Mem. Manch. Lit. and Phil. Soc, vol. vii, p. 57. 



