296 Zouluyical Sociely. 



CvcLosTOMA RUFKSCENS, nob., Thcs. Conch, part 3. pi. 24. f. 36, 



37. Cycl. testd suborbiculari, rvfescente, spird brevi, anfractibits 



quatuor, rotundatis, spiraliter co^lellatis et striutis, costtiUs 



creniihitis , sutiird profundd ; apertwd circulari, periiremate tenui ; 



timbllico magno. 



There are two varieties of this species, one of a dark red colour, 



the other almost white. They were communicated by Mr. Powis, 



from Martinique. 



Cyclostoma plebeium, nob., Thes. Conch, part 3. pi. 24. f. 40. 

 Cycl. testd subylobosd, tenui, obscurd, sub/used, spird breviusculd ; 

 anfractibus quatuor, rotundatis, rapide crescentibus, apice obtusi- 

 usculo ; suturd distinctd ; aperturd magnd, circulari, peritremate 

 tenui; umbilico parvulo ; operculo multispirali, extiis albicante, 

 maculd centrali, dcjvessd, margine canaliculato , intiis nitido. 

 Found in the earth under decayed leaves at Calauang, in the pro- 

 vince of Laguna, isle of Luzon, by H. Cuming. 



Cyclostoma spurcum, nob., Thes. Conch, part 3. pi. 24. f. 75, 76, 

 Cycl. testd suborbiculari, rufescente -fused, spird prominuld ; an- 

 fractibus quatuor, rotundatis, albicante-subvariegatis, spiraliter 

 striatis et subcarinatis, suturd distinctd, subcrenulatd ; aperturd 

 circulari, peritremate albo, tenui, subreflexo ; umbilico parvo ; 

 operculo crassiusculo, anfractibus quinis. 

 From the Seychelle Islands. In Mr. Cuming's collection. 

 Cyclostoma Cincinnus, nob., Thes. Conch, part 3. pi. 24. f. 77, 

 78. Cycl. testd suborbiculari, subturritd, tenui, albidd, interdum 

 fusco-unifasciatd ; anfractibus quinis, rotundatis, postice spiraliter 

 sulcatis, sulcis subdisiantibus, antice spiraliter striatis; suturd 

 distinctd ; aperturd circulari, peritremate tenui, versus umbilicum, 

 parvum subreflexo, apice obtusiusculo. 

 Locality not known. In Mr. Cuming's collection. 

 Cyclostoma nitidum, nob., Thes. Conch, part 3. pi. 29. f. 225, 

 226, 227- Cycl. testd globoso-conicd, tenui, pellucidd, Icevi, 

 alba, interdum fusco-variegatd, spird acuminatd, anfractibus quinis, 

 rotundatis, ultimo maximo, ventricoso, aperturd circtilari, peritre- 

 mate reflexo, latere coiumellari subsinuato ; suturd distinctd; um- 

 bilico parvo ; operculo tenui, cortieo, spirali. 

 Var. a. Shell pale, closely dotted with brown ; on leaves of bushes 

 in the isle of Guimaras. 



Var. b. Shell pale, with brown dots and bands ; from the same 

 locality as a. 



Var. c. Shell white ; same locality as a, and on leaves of trees at 

 Sibonga. 



Var. d. Shell pale ; found at Cabanatuan. 



Var. e. Shell pale, with brown streaks and dots ; from the island 

 of Guimaras. 



Cyclostoma concinnum, nob., Thes. Conch, part 3. pi. 29. f. 223, 

 224. Cycl. testd globoso-conicd, tenui, pellucidd, Levi, albidd, 

 viridi-fusco spiraliter lineatd, spird acuminatd, anfrdctibus quinis, 

 rotundatis, ultimo maximo, ventricoso ; aperturd circulari, peri- 



