— 125 — 
Cyclostoma castaneum Pfr. Zanzibar. 
castum id. Madagascar. 
chloroticum id, ibid. 
cincinnum Gray, ibid. ? 
clathratulum Réel. Socotora. 
conoideum Pfr. Maurice, Sé- 
chelles. 
Comorense id. Comores. 
Coquandianum Petit, Madag.? 
Creplini Dunk. Zanzibar. 
Cuvierianum Petit, Madagascar, 
desciscens Pfr. Socotora. 
Deshaysianum Petit, Madagascar. 
deliciosum Fér. Comores. 
euchilum Pfr. Madagascar. 
Eugeniæ Reeve, Maurice. 
expansilabre Pfr. ibid. 
fimbriatum Lamk. Madagascar, 
Maurice. 
formosum Sow. Madagascar. 
fulvescens id. ibid. 
globosum Bens. Maurice. 
gratum Petit, Abd-el-Kouri. 
griseum Pfr. Madagascar. 
hœmastomum Ant. Maurice. 
insulare Pfr. ibid. 
Kieneri id. Madagascar. 
ligatulum Grat. ibid. 
Listeri Gray, Maurice. 
Macareæ Petit, Madagascar. 
Madagascariense Gray, ibid. 
microchasma Pfr. Madagascar. 
modestum Petit, Abd-el-Kouri. 
Moulinsii Grat. Madagascar. 
multifasciatum id. ibid. 
multilineatum Jay, ibid. 
multiliratum Pfr. Maurice. 
naticoides Récl, Socotora. 
niveum Petit, Madagascar. 
obsoletum Lamk. ibid, 
occlusum Morch, ibid. 
orbellum Lamk. ibid. 
pulchrum Gray, Séchelles. 
Cyclostoma pyrostomum Sow. Mada- 
gascar. 
reticulatum Ad. et Rv. ibid. 
sarcodes Pfr. ibid. 
Sechellarum id. Séchelles. 
sinuatum id. Madagascar? 
Souleyetanum Petit, Abd-el- 
Kouri. 
Sowerbyi Pfr. Comores. 
tenue Sow. Madagascar. 
tricarinatum Müll. ibid. 
unicarinatum Lamk. ibid. 
unifasciatum Sow. ibid. 
Vesconis Morlt. ibid. 
virgatum Sow. ibid. 
virgo Pfr. ibid. 
vitellinum id. ibid, 
vittatum Sow. ibid. 
xanthocheilum id. ibid. 
Zanguebaricum Petit, Zanzibar. 
zonatum id. Madagascar. 
Hydrocena expansilabris Pfr. Maurice, 
— globosa Bens. ibid. 
— multistriata Pfr, ibid. 
— rubens Quoy et Gaim. ibid. 
Ampullaria Cecillei Phil, Madagascar, 
— erythrostoma Reeve, Zanzibar. 
— filosa id. Madagascar. 
— fuliginea Koch, ibid. 
— Largillierti Phil. ibid. 
olivacea Sow. Zanzibar. 
Paludomus phasianinus Reeve, Sé- 
chelles. 
— punctatus id. Maurice. 
Melania amæna Morlt. Séchelles, Zan- 
zibar. 
— amarula  Lamk. 
Bourbon, Maurice. 
— bicarinata Grat. Madagascar. 
— Commersoni Morlt. ibid. 
— contracta Lea, Séchelles. 
— cornuta id. Madagascar. 
— decollata Lamk. ibid. 
Madagascar, 
