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-ohlongd, 

 solidii, striatuld, epidennide olivaceo-lutescente mdutii ; spird 

 elongato-coyiicd, apice acutd ; anfractihus 5^ vix convexiusculu, 

 ultimo y lonyitudhiis subiequunte ; columelld suharcuatd, di- 

 stincte et oblique truncatd ; pariete aperturalilamelld magnd, 

 horizontal iter intrante munito; aperturd semiovali, intus callosd ; 

 peristoviate simjjlice, acuto. 



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

 Ilab. in Real Llejos (IL Cuming). 



2. Cylindrella sericea, Pfr. C t est d prof unde rimatd, sub- 

 cylindraced, truncatd, soliduld, subtilissime striatuld, diaphand, 

 liyaVnio-alhidd, super ne fuscescente ; suturd alho-filosd ; anfrac- 

 tibus y angustis, subcequalibus, vix coiivexiusculis, ultimo non 

 protracfo, basi carind funiformi munito ; aperturd subobliqud, 

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

 Jtexiuscalo, superne affixo. 



Long. 26, diam. 8§ mill. ; ap. c. perist. G|- mill, longa, 7 lata. 

 Hab. in insula Haiti. 



3. Clausilia cyclostoma, Pfr. CI. testd non rimatd, fusiformi, 

 gracili, solidd, sub lente subtilissime et confertissime undulato- 

 striata, non nitente, purpurascenti-nigricante ; spird regulariter 

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

 tidd ; suturd filari, superne papilliferd ; anfractihus d planius- 

 culis, ultimo deorsum soluto, basi bicristato ; aperturd circulari, 

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



ferd minore ; lunelld nulld ; jiUcis j^alafalibus 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 Edvv. Belcher). 



4. Clausilia CLAviFORMis, Pfr. CI. testd vix rimatd, subclavi- 

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



turritd, apice acutd; anfractihus 9 convexiusculis, ultimo basi 

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

 ferd profundd, subfransversd ; lunelld nulld ; plicis palatalibus2, 

 superd suturce paralleld, breviusculd, inferd brevissimd, subcolu- 

 mellari usque ad marginem porrectd ; peristomate continuo, vix 

 soluto, tenui, breviter expanso. 



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



Ilab. in Archii)elago Koreano (I'eleher). 



