386 Zoological Society. 



PROCEEDINGS OF LEARNED SOCIETIES. 



ZOOLOGICAL SOCIETY. 



Nov. 13, 1849.— William Yarrell, Esq., in the Chair. 

 Descriptions of thirty new species of Tornatellina, Cy- 



LINDRELLA, AND ClAUSILIA, FROM THE COLLECTION OF 



H. Cuming, Esq. By Dr. L. Pfeiffer. 



1. Tornatellina Cumingiana, Pfr. T. testa ovato-oblongd, 

 solidd, striatuld, epidermide olivaceo-lutescente indutd ; spird 

 elongato-conicd^ apice acuta ; anfractihus 5^ vix convexiusculisy 

 ultimo f longitudinis subcequante ; columella suharcuatd, di- 

 stincte et oblique truncatd ; pariete aperturali lamelld magnd, 

 horizontaliter intrante mmiito; aperturd semiovali, intus callosd ; 

 peristomate simplice, acuto. 



Long. 8, diam. 3| mill. ; ap. 3f mill, longa, medio 1| lata. 

 Hab. in Real Llejos (H. Cuming). 



2. Cylindrella sericea, Pfr. C. testa prof unde rimatd, sub- 

 cglindraced, truncatd, soliduld, subtilissime striatuld, diaphand, 

 hyalino-albidd, superne fuscescente ; suturd albo-filosd ; anfrac- 

 tibus 9 angustis, subcequalibus, vix convexiusculis, ultimo non 

 protracto, basi cari?id funiformi munito ; aperturd subobliqud, 

 fere circulari, basi canaliculatd ; peristomate albo, expanso, re- 

 flexiusculo, superne affixo. 



Long. 26, diara. 8f mill. ; ap. c. perist. 6J^ mill, longa, 7 lata. 

 Hab. in insula Haiti. 



3. Clausilia cyclostoma, Pfr. CI. testdnonrimatd,fusiformiy 

 gracili, soUdd, sub lente subtilissime et confertissime undidato- 

 striatd, non nitente, purpurascenti-nigricante ; spird regulariter 

 attenuatd, sursum pallidiore, apice obtusiusculd, purpurea, ni- 

 tidd ; suturd Jilari, superne papilliferd ; anfractibus 9 planius- 

 culis, ultimo deorsum soluto, basi bicristato ; aperturd circularly 

 intus nigrd ; lamellis approximatis, superd compressd, acutd, in- 

 fer d minor e ; lunelld nulla; plicis palatalibus 2—3 profundis, 

 vix conspicuis, subcolumellari immersd ; peristomate continuo, 

 superne subemarginato, albo, late expanso. 



Long. 21, diam. medio 5 mill. ; ap. 4| mill, longa, 4^ lata. 

 Hab. in Archipelago Koreano (Sir Edw. Belcher). 



4. Clausilia claviformis, Pfr. CI. t est d vix rimatd, subclavi- 

 formi, tenui, IcBvigatd, nitidd, luteo-corned, albo-variegatd ; spird 



turritd, apice acutd; anfractibus 9 convexiusculis, ultimo basi 

 rotundato ; aperturd elliptico-pyriformi ; lamellis tenuibus, in- 

 ferd profundd, subtransversd ; lunelld nulld ; plicis palatalibus 2, 

 superd suturce paraUeld, breviusculd, inferd breoissimd, subcolu- 

 mellari usque ad marginem porrectd ; peristomate continuo, vix 

 soluto, tenui, breviter expanso. 



Long. 12, diam. 3| mill. ; ap. 3 mill, longa, 2^ lata. 



Hab. in Archipelago Koreano (Belcher). 



