174 
ADAMSIELLA §. 3. 4. 
momea, rufo maculata et marmorata; sutura subcrenata; anfr. 
superst. 4 — 4'/o angusti, convexi, ultimus angustior, teres, 
antice longe solutus, descendens; apertura diagonalis, parvula, 
circularis; perist. duplex : internum breviter porrectum, exter- 
num perdilatatum, convexe reflexum, superne subangulatum. — 
Operc. normale. — Long. 14, diam. 6*/ 2 mill. Ap. 3'/ 2 , cum 
perist. 7 mill, longa. (Coll. Nr. 129.) 
Cyclosloma monstrosum Adams Contrib. to Conch. N. 1. p. 5. 
— — Chemn. ed. II. N. 259. t. 36. f. 17. 18. 
Adamsiella monstrosa Pfr. Consp. N. 250. 
Habitat in insula Jamaica. 
§• 4. . 
290 9. A. xanthostoma Sowerfcy. 
T. aperte perforata, oblongo-turrita, truncata, solida, liris 
obtusis spiralibus undulata, longitudinaliter confertissime striata 
et distanter sulcata, cinereo-rufescens vel pallida, opaca; spira 
regulariter attenuata , late truncata ; sutura profunda , subsim- 
plex; anfr. superst. 47 2 — 5 rotundati, lente accrescentes ; aper- 
tura verticalis, sub circularis , intus carnea; perist. duplex, au- 
rantiacum vel album : internum simplex, brevissimum, externum 
continuum, horizontaliter dilatato - expansum , subundulatum, 
superne subangulatum. — Operc. normale. — Long. 13, diam. 
67 2 mill. Ap. 3 2 / 3 mill, longa. (Coll. Nr. 130.) 
Cyclostoma xanthostoma Sow. Thes. N. 149. p. 144. t. 29. f. 175. *) 
— — Chemn. ed. II. N. 118. p. 115. t. 14. f. 6 — 8. 
— tenuistriaium Adams Contrib. to Conch. N. 1. p. 8. **) 
Choanopoma xanthostoma Gray Catal. Cycloph. p. 53. N. 23. 
Adamsiella xanthostoma Pfr. Consp. N* 251. 
Habitat in insula Jamaica. 
*) T. oblonga turrita, crassiuscula, cinereo-rufescente , apice decollato : 
anfr. 4 — 5 rotundatis , transversim tenerrime striatis et spiraliter snlcatis, 
nonnunquam transversim tenuiter sulcatis , sulcis distantibus ; sutura pro- 
funda ; apertura subcirculari ; peritremate duplici , aurantiaco - rufescente, 
interno simplici , tenuiusculo , externo latiori , reflexo , tenuiter subundulato ; 
umbilico mediocri. — Savanah la Mar, Jamaica. (Sow. 1. c.) 
**) Shell elongate; deeply colored with grayish and reddish slate 
color, with an orange lip ; with numerous distinct spiral striae decussated by 
excessively minute and numerous transverse striae and by a few distant fine 
deep striae; spire with moderately convex outlines; apex truncate with the loss 
of two or three whorls; four and one -half rather convex whorls i*emaining, 
