TUDOKA §. 1. 
247 
6. X. ncisitiia Adants. 404 
T. rimato-subperforata, elongato-conica, solidiuscula, lon- 
gitudinaliter plicata (plicis confertis, filaribus, suboctonis ad 
suturam in fasciculum prominentem collectis), sericina, cinereo- 
fnsca, interdum rufo-maculata ; spira elongata, truncata; anfr. 
superst. 5 modice convexi, regulariter accrescentes, ultimus 
antice breviter solutus , basi obsolete spiraliter sulcatus ; aper- 
tura subverticalis , suboblique ovalis; perist. simplex, conti- 
nuum, vix expansiusculum , superne angulosum. — Operc. 
praecedentis. — Long. 15, diam. 7 J / 2 mill. Ap. 5*/ a mill, 
longa. (Coll. Nr. 175.) 
Cyclostoma armatum Adams Contrib. to Conch. N. l. p. 10. 
— — Chemn. ed. II. N. 378. t. 46. f. 24 — 26. 
Tudora armata Pfr. Consp. N. 360. 
Habitat in insula Jamaica. 
7. X. unities* Adams. 405 
T. subperforata, subturrita, solidiuscula, longitudinaliter 
confertissime plicato-striata, parum nitens, cinereo-fusca ; spira 
elongata, truncata; sutura snbsimplex; anfr. superst. 5 modice 
convexi, lente accrescentes, ultimus antice breviter solutus, 
dorso carinatus; apertura ab axi paululum recedens, ovalis; 
perist. simplex, expansiusculum, superne angulatum. — Operc. 
praecedentium. — Long. 14, diam. 5‘/ a mill. Ap. 5 mill, 
longa. (Mus. Cuming.) 
Cyclosloma muiicum Adams Contrib. to Conch. N. 1. p. 11. 
Tudora mut'ica Pfr. Consp. N. 361. 
Habitat in insula Jamaica. 
8. X.? maritima Adams. 406 
T. rimata, oblongo-turrita, solida, longitudinaliter conferte 
plicata, vix nitens, carnea, unicolor vel lineis rubris obsolete 
cincta; spira elongata, breviter truncata; sutura confertim ser- 
rulata; anfr. superst. 5 7 a parum convexi, ultimus basi spira- 
liter subsulcatus; apertura verticalis, oblique subovalis; perist. 
simplex, undique breviter expansum, marginibus ad ventrem 
anfr. penultimi angulatim junctis, columellari angusto, appresso. 
— Operc.? — Long. 13, diam. 57 2 mill. Ap. 5 mill, longa, 
4 lata. (Coll. Nr. 176.) 
Cyclosloma maritimum Adams in Proc. Bost. Soc. 1846. II. p. 102.*) 
*) T. elongata , dccollata , aurantia, costulis exilibus plurimis eleganter 
