216 
Hab. in Maderz aridioribus maritimis, e. g. in Rancho prope Cam. 
de Lobos, ad Piedadem prope Canical, Paul do Mar, &c. 
Obs. Var. a. Subv. ‘per Suby. 2 in 6, Suby. 1 per formas inter- 
medias innumeras transit. 
Var. 2. crebristriata; T. tenuiuscula graciliuscula fusco-cornea 
intensius colorata subcinereo-sericina; anfr. 8-11] planatis crebri- 
striatis, striis confertis approximatis tenuibus albidis, interstitiis colo- 
rato-fuscis, sutura subobsoleta minus impressa. 
Cl. deltostoma (3, Prim. 1. c. (sed non f. 38, vide supra) ; Pf. 1. c. 
Subv. 1. normalis; gracilis subelongata. 
Hab. in Madera Insulisque Desertis vulgatiss. ubique: poly- 
morpha. In submaritimis (e.g. in Rancho Insulisque Desertis) ina, 
subv. 2 transiens : in editioribus aére humidiore montanis tenuior fere 
minor, striis creberrimis tenuissimis. 
Subv. 2. depauperata ; subabbreviata pusilla, ad Cl. exiguam ac- 
cedens. 
Cl. deltostoma, Kiist. M. et C. p. 92. no. 87. t. 10. f. 21-24? 
Hab. in collibus apricis submaritimis, 1500 fere ped. altis, editiori- 
busque montanis Madere. 
Obs. TInterstitia costellarum vy. striarum longitudinalium zeque et 
in a et (3, plerumque striolis spiralibus confertis interruptis obsolete 
crenato-decussata. Striolee vero aliquando, przesertim in @ 1, omnino 
evanescunt. 
146. C. exicua, Prim. 66. no. 70. t. 6. f. 39 (aucta); Pf. il. 
485; Kiist. M. et C. 91. no. 85. t. 10. f. 12-15. 
Hab. in rupibus Madere. 
Family IV. CycLosromaTID&. 
Genus Craspeporoma, Pf. 
(Cyclostoma, § Hygrobium, Syn. Diagn.) 
(Typ. C. lucidum.) 
“<T’. subturbinata rimata, anfr. ult. antice subcoarctato. Perist. 
continuum simplex, prominentiam internam operculi excipiens. 
Operc. corneum solidum arctissime spiratum, nucleo centrali, 
pagina externa plana, interna prominentia circulart in anfr. 
penult. munita, medio profunde concava.” Pf. 
Obs. T. levigatee lucido-nitentes. 
147. C. tuctpum (Cyclostoma), Prim. 66. no. 71. t. 6. f. 40 
(aucta); Kist. M. et C. t. 13. f. 26, 27; Pf. Mon. Pneum. 
p- 51. no. 88. 
Hab. in umbrosis obscuris convallium irriguisque Maderze ubique 
recens: etiam fossilis ad Canical: vulgatiss. In Portu S‘° tantum 
fossilis rariss. In Desertis omnino deest, 
