Zoological Society. 257 



buSt ultimo permagno, circa aream umbilicarem fuscam compresso- 

 inflato ; aperturd lunari-ovali, intus margaritaced, lilaced ; peri- 

 stomate simplice, anguste reflexo, umbilicum angustum semitegente. 



Diam. 21 ; altit. 14 lin. 



From Vera Cruz, province of Honduras, Central America : found 

 on leaves of trees. (Delatere.) 



Helix trigonostoma, Pfr. Hel. T. imperforatd, irochiformi, tenui, 

 oblique striatuld, lineis nonnullis concentricis impressis notatd, 

 albd, fasciis superne linearibus, basi latioribus, fusco-violaceis 

 ornatd; spird late conicd; anfractibus 4^ planiusculis , ultimo 

 spiram superante, obsolete angulato ; columelld brevi, callosd ; 

 aperturd subtriangulari ; peristomate simplice, margine supero 

 parilm expanso, columellari reflexo, adpresso, 



Diam, 14 ; altit. 9 lin. 



From Vera Cruz, province of Honduras, Central America : found 

 on leaves of trees. (Delatere.) 



Affinis H. teneree. Sow. DifFert spira minus elevata, anfractibus 

 planis, columella brevi et aperturae form§.. 



Helix tenuis, Pfr. Hel. T. imperforatd, subglobosd, tenui, fused, 

 rufo-zonatd, lineis obsoletis impressis, concentricis notatd, epider- 

 mide tenuissimd, sericind indutd ; spird obtusiusculd ; anfractibus 

 5 celeriter crescentibus, vix convexiusculis, ultimo magno, inflate, 

 ad columellam obliquam, subtortam excavate ; aperturd lunari- 

 ovali ; peristomate recto, simplice, basi subincrassato. 



Diam. 16; altit. 11 lin. 



Patria ignota. (E coUectione Cumingiana.) 



Helix dilatata, Pfr. Hel. T. imperforatd, subglobosd, solidd, 

 pallida luted, lineis confertissimis brunneis, interruptis supra et 

 infra fasciam concolorem medii anfractds ultimi pictd, apicealbidd; 

 spird parvd, obtusiusculd ; anfractibus 4 rapide crescentibus^ ul- 

 timo amplissimo ; columelld albo-callosd, arcuatd ; aperturd maxi- 

 md, oblique ovali, intus lacted ; peristomate recto, intus incrassato, 



Diam. 17|, altit. 12 lin. 



Patria ignota. (E collectione Cumingiana.) 



Glandina obtusa, Pfr. Glan. T. ovatd, utrinque attenuatd, apice 

 obtusd, soliduld, pellucidd, pallide earned; anfractibus 5| vix con- 

 vexiusculis, ultimo spiram paulh superante; suturd crenulato- 

 marginatd; aperturd latiusculd; columelld verticali, basi subitb 

 truncatd ; peristomate simplice, marginibus callo tenuissimojunctis, 

 dextro medio vix dilatato. 

 Long. 9^ ; diam. 5 lin. 



From the Real Llejos, province of Nicaragua, Central America : 

 found on leaves of bushes. (Cuming.) 



May 13. — William Yarrell, Esq., Vice-President, in the Chair. 

 " Descriptions of eighty-nine new species of Mitra, chiefly from 

 the collection of H. Cuming, Esq.," by Lovell Reeve, Esq. : — 



Mitra fastigium. Mitr. testd abbreviato-ovatd, subventricosd, 

 solidiusculd, spird brevi, acuminatd ; lavigatd, basim versus exiliter 



