296 Zoological Society. 



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

 orbicidatd, soUdd, striata, sub lente gramdatd, fidvd ; spird 

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

 accrescentibiis, penidtimo anyidato, idtitno svbdepresso, antice 

 defiexo, basi s^ibangulati ii in itmbiliciim, mediocrem, pervium, 

 A diametri vix superantem descendente ; aperturd perobtiqud, 

 lunari-ovali, intus lacted ; peristomate simplice, fuscido-lim- 

 batO) marginibus conniventibus, calfo junctis, dextro brevissinic 

 expanse, basali subreflexo, colmnellari alba, supra nmbiticum 

 dila ta to-refiexo . 



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

 Hab. in insula Madagascar. 



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

 superne subtilissime granulatd, diaphand, pallide fulvd, Jiam- 

 mis a suturd exeuntibus, ci)if/utisque 3 interruptis, mondiformi- 

 bus rujis oraatd ; spird pland ; anfractilms vix 5 convexis, 

 tdtimo subdepresso, antice nan descendente, basi radiatim stria- 

 tido et lineis impressis spiralibus distantibus notato, circa um- 

 bilicum mediocrem, infundibuliformem subcompresso ; aperturd 

 parum oblicpid, lunato-subtriangulari ; peristomate albo-laliiato, 

 breviter rejlexo, margine supero ab insertione primujn ascen- 

 dente, turn sinuato, basali strictiusculo, repando, columellari 

 brevi, triangidatim patente. 



Diam. maj. 21, min. 17, alt. 9 mill. 

 Locality unknown. 



23. BuLiMUS (Partula) decussatultjs, Pfr. B. testd perfo- 

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

 ?ninutissime decussatuld, vix nitididd, fidvescenti-albidd, dia- 

 phand ; spird brevi, conicd, obtusiuscidd ; suturd mediocri ; 

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

 datd ; columelld sub2)licatd, recedente ; aperturd angidato- 

 ovali ; peristomate simptlice, tenui, marginibus conniventibus, 

 dextro campanulatim expanso, columellari super perforationem 

 rejlexo. 



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

 Hab. in insula Navigatorum. 



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

 trorsd, perforatd, oblongo-ovatd, solidd, obsolete gramdato- 

 striatd, iiitiduld, fidvd, lineis confertis saturatioribus signatd ; 

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

 fractibus 5 planiusculis, idtimo spiram super ant e ; aperturd 



oblongd, angustd, intus albidd, dente calloso parvulo profundo 

 in ventre anfractus pemdtimi munitd ; peristomate s\iMncras- 

 sato, intus valide cdbo-labiato, marginibus parallelis, dextro 

 breviter expanso, medio subdentato, columellari dilatato, piano, 

 reflexo. 



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



Hab. in insula Navigatorum. 



