29ft Zoological Society. 



21. Helix galactostoma, Pfr. II . testd umbilicatd, convexo- 

 orbiculatdy soliddy striatd, sub lente granulatd, fulvd ; spird 

 brevi, fornicatd, obtusd ; anfractibus A\ convexiusculis, sensim 

 accrescentibus, penidtimo angulato, ultimo subdepresso, antice 

 dejlexo, basi subangulatim in umbilicuniy medioc?'em, pervium^ 

 i diametri vix superantem descendente ; aperturd perobliqud, 

 lunari-ovalif intus lacted ; peristomate simplice, fusculo-lim- 

 bato, marginibus conniventibus, callo junctisy dextro bi'evissime 

 expanse, basali subrejlexoy columellari alboy supra umbilicum 

 dila tato-rejiexo . 



Diam. maj. 36, min. 31, alt. 18 mill. 

 Hab. in insula Madagascar. 



22. Helix rosarium, Pfr. H. testd umbilicatd, depressd, tenui, 

 supei'ne subtilissime granulatd, diaphand, pallide fulvd, Jlam- 

 mis a suturd exeuntibus, cingulisque 3 interruptis, moniliformis 

 bus rufis ornatd ; spird pland ; anfractibus vix 5 convexis, 

 ultimo subdepresso, antice non descendente, basi radiatim stria- 

 tulo et lineis impressis spiralibus distantibus notato, circa um- 

 bilicum mediocrem, infundibuliformem subcompresso ; aperturd 

 parum obliqud, lunato-subtriangulari ; peristomate albo-labiato, 

 breviter refiexo, margine supero ab insertione primum ascen- 

 dente, turn sinuato, basali strictiusculo, repando, columellari 

 brevi, triangulatim patente. v-*' 



Diam. maj. 21, min. 17, alt. 9 mill. /*-^^ 



Locality imknowniV'^'* ^ ' '-^ ■ *'^^^" 



23. BuLiMUS (Partula) decussatulus, pfr. B. testd perfo- 

 ratd, ovato-conicd, tenui, striis incrementi lineisque spiralibus 

 minutissime decussatuld, vix nitiduld, fulvescenti-albidd, dia- 

 phand ; spird brevi, conicd, obtusiusculd ; suturd m,ediocri ; 

 anfractibus A\ convexis, ultimo ^ longitudinis cequante, rotun- 

 datd ; columelld subplicatd, recedente ; aperturd angulato- 

 ovali; peristomate simplice, tenui, marginibus conniventibus, 

 dextro campanulatim expanso, columellari super perforationem 

 refiexo. 



Long. 15, diam. 8f mill.; ap. 9 mill, longa, 6i lata. ^ 



Hab. in insula Navigatorum. 



24. BuLiMUS (Partula) navigatorius, Pfr. B. testd dex- 

 trorsd, perforatd, oblong o-ov at d, solidd, obsolete granulato- 

 striatd, nitiduld, fulvd, lineis confertis saturatioribus sigyiatd ; 

 spird conicd, acutiusculd ; suturd levi, albo-marginatd ; an- 

 fractibus 5 planiusculis, ultimo spiram superante; aperturd 

 oblongd, angustd, intus albidd, dente calloso parvulo profundo 

 in ventre anfractus penultimi munitd ; peristomate subincras- 

 sato, intu^ valide albo-labiato, marginibus parallelis, dextro 

 breviter expanso, medio subdentato, columellari dilatato, piano, 

 refiexo. 



Long. 23, diam. 11 mill.; ap. (c. perist.) 13 mill, longa, 8 lata. 

 Hab. in insula Navigatorum. \^^ ^ ijU?w»>v « 



