470 Zoological Society. 



sulcatis,' ultimo i?ifru leevigato ; aperturd subrotundd, peritremate 



ohtuso, reflexo, superne producto, latere umbilici suhsinuato ; um- 



bilico parvo. Alt. 0*6 ; lat. 0'5 poll. Operculum tenue, corneum, 



IcEve. 



Of this species, which is very variable in size and colouring, the 



first specimens I met with were brought from Manilla by J. K. Smith, 



Esq. Mr. Cuming has collected the following varieties, viz. 



a. Shell small, light brown, elegantly marbled with dark chestnut- 

 brown. Found in the earth at the roots of plants at Puerto-galero, 

 in the island of Mindoro. 



b. Shell rather larger than a, of a pale colour, with very slight 

 dark brown mottlings ; apex rosy. From Bai, in the isle of Negros. 



c. Nearly similar to b, but the apex scarcely rosy. Found under 

 decayed leaves at Piddig, in the province of North Ilocos, island of 

 Lucon. 



(/. Shell larger, with a pale band round the circumference, and a 

 dark one beneath. Found under decayed leaves at Sinait, and in 

 earth at Bolinao. 



e. Shell very darkly coloured, size of d. On leaves of bushes at 

 Calauang, and on leaves of trees at St. Christoval, in the province of 

 Batangas. 



/. Shell smoother and paler than the other varieties ; apex black- 

 ish. Found on leaves of bushes at Daleguete, island of Zebu. 



g. Shell larger than the other varieties, dark brown, with a white 

 and brown articulated band close to the suture, and a nearly white 

 circumferential band. Found on leaves of bushes at the island of 

 Luban. 



Ctclostoma altum. 



Cycl. testa aciiminato-turritd, crassiusculd, fused, levvi, tenuissirm 

 striata, apice obtusiusculo, anfractibus 1 ad S rotundatis ; suturd 

 distinctu, tenui ; aperturd circulari, labia subincrassato, refiexo- 

 patente, duplici, margine externa magls, interno minus expanso, 

 intus canali parvd ad basin columellurem munito ; umbilico medi- 

 ocri extus carind obtusd marginato ; operculo corneo, tenui, miilti- 

 spirali. Long. 1* ; lat. 0'3 poll. 

 Hab. supra truncos arborum in montibus insulse Negros, Philip- 

 pinarum. 



This species is remarkable for having a double lip, the inner or 

 newer portion of which is not quite so much expanded as the outer. 

 It may be regarded as the first link of affinity, connecting Cyclosto- 

 ma with Pupina by the intervention of the next species, C. Pupini- 

 forme. 



Ctclostoma Pupiniforme. 



Cycl. testa sulcylindrico-turritd, crassiusculd, obscurd, fused, leevi, 

 tenuissime striatd, apice subabrupte acuminata, anfractibus senis, 

 rotundatis, suturd validd ; aperturd circulari, peritrernate discan- 

 iimto ; labia externa subincrassato, revoluto, flavida, ad basin colu- 

 mellurem. canali angustissimd spirali interrupto ; deinde superne 

 latiori, demiim supra ultimum anfractum leviter expanso, canali 



