ADAMSIELLA $&. 2. 171 
gg. 
4. A. variabilis Adams. 985 
T. anguste umbilicata, ovato-pyramidalis, plerumque de- 
collata, plicis longitudinalibus confertssimis striüsque transver- 
sis decussata, lutescens, seriatim. fusco-maculata, superne sae- 
pius violacea; sutura irregulariter et distanter crenata; anfr. 
superst. plerumque 4 convexi, ultimus teres; apertura verti- 
calis, circularis; perist. subduplex : internum breve, vix por- 
rectum, externum continuum, undique subaequahter patens, 
anfractui penultimo -appressum, superne angulatum. —  Operc. 
normale. — Long. 14, diam. 8 mill. Ap. intus 4, cum limbo 
6 mill. longa. (Coll. Nr. 197.) 
Cyclostoma articulatum Som. 'Thes. N. 144. p. 142. t. 98. f. 160. 
161. *y ^Nec Gray. 
- variabile 44dams Contrib. to Conch. N. 1. p. 3. (Ex spec. 
authent.) 
— -— Chemn. ed. II. N. 276. t. 38. f. 7. 8. 
— mutatum dams Contrib, to Conch. N. 9. E 154. 
Choanopoma arliculatum Pfr. in Zeitschr. f. Mal. 1847. p. 107. 
— — Gray Catal. Cycloph. p. 52. x 17. 
Adamsiella variabilis Pfr. Consp. N. 246. 
Habitat in Demerara (Sowerby), Jamaica. (Adams). 
Obs. Variat striis decussantibus magis minusve confertis et elevatis et 
peristomate magis minusve incrassato, reflexo, saepe concentrice 
striato. 
9. A. Grayana Pfr. 286 
T. anguste umbilicata, ovato-pupaeformis, decollata, satu- 
"ate violaceo-fusca; sutura remote albo-nodulosa; anfr. superst. 
4'/, convexi, supremi valide costulati, striis spiralibus tenuibus 
decussati, sequentes regulariter et confertim decussati, ultimus 
penultimum non superans; apertura verticalis, circularis; perist. 
subduplicatum, album, flavum vel rubellum : internum simplex, 
breviter porrectum, externum anfractui penultimo brevissime 
adnatum, undique aequaliter plane expansum. — Opere. nor- 
*) T. oblonga, pyramidali, spira subaeuminata, plerumque decollata; 
anfr. 4—7 rotundatis, transversim striatis, albidis et articulatim fusco-mar- 
moratis; sutura distincta; apertura subcirculari; peritremate angusto, reflexo ; 
umbilico mediocri; opere, testaceo , tenui, extus lamina spirali conspicua. 
(Sow. l. e.) 
