— 90 — 



59. Cyclostoiiia (Megalomastoma) verruculosuiii Shulll. 



n. sp. 



Testa breviter riniata , elongato-pupaeformis superne confer- 

 tim costiilata^ costulis in anfractu ultimo et penultimo in ver- 

 rucas crebeirimas sensim solutis , nltidula, viridescens, vel cor- 

 neo-fusca ; spira subcylindrica , superne sensim attenuata, apice 

 conico-obtusa , p«pe truncatula ; sutuia profunda ', anfr. 7, con- 

 vexi , ultimus penultimo vix angustior , Va altididinis requans vcl 

 paulo superans, basi pone carinam funiformeni eievatam pro- 

 funde sulcatus 5 apertura vix obliqua , circularis ; perist. subtlu- 

 plicatum, adnatum, continuum , inerassatum, vix cxpansiusculum. 

 Operculum ut in C M. Antillarum. 



Alt. 16 ; Diam. 5 mill ; Apert. Sy^ mill. lata. 

 Hab. Sub truncis et foliis putrescentibus Musarum , ad Sierra 



de Luquillo, infrequens. 

 Obs. Species pulchra, C. Aniillarum Sowb. affinis, sed forma, 



sculptura, et peristomate superne adnato non exciso, optime 



distincta. 



60. Cyclostoiiia (Choanopoma) decussatuiu Lam. 



Syn. Cyclosloma decussaium Lam. Delessert Rec. tab. 

 29, f. 6. 



Hab. Prope San Juan, Aguas Claras, Ceiba, Humacao, et Lu- 

 quillo , ad saxa et arborcs sub foliis delapsis ; rarissime 

 etiam in insula Vieque. 



Obs. Varietas minor forsan tenuior prope Luquillo occurrit , et 

 altera , tes<a carneo-flavida, fere Immaculata prope Ceiba et 

 in insula Vieque. 



61. Cyclostoiiia (Choanopoma) seuticosuiii ShuUl. n. sp. 



Testa anguste subperforata , ovato-conica, truncatula, regu- 

 lariter et argute clathrata et asperata , nitidula, luteo-rufcscens, 

 lineis flexuoso-angulosis , rufis eleganter notata , basique fasciis 

 1 ad 2, angustis , rufis zonata ; spira ovoideo-attcnuata j sutura 

 papillis albis crenulata ; anfr. superst. 5, inferiores ccleriter ac- 

 crescentes, parum convexi , ultimus antice breviter solutus; pe- 

 rist, duplex , album , internum vix porrectum , externum patens , 

 ad anfr. penultimum truncatum, superne breviter auriculato-pro- 

 ductum. Operculum tenue cartilagineum, lamelloso-spiratum, la- 

 mellis exstantibus , interdum testaceo-incrassatis , nucleo sulcen- 

 trali. 



Alt. I7V2 j Diam. 8; Apert. fere 6 mill. longa, 5 lata. 

 Hab. Cum praecedente intermixtum rarius prope Luquillo , fre- 



quentius in insula Vieque. 



