244 
TUDORA §. 1. 
Cyclostoma megachdum Chemn. ed. II. N. 62. p. 66. t. 9. f. 18. 19. 
— roridum Parr, in sched. 
— Proteus Beck in Mus. Cuming. 
Tudora similis Gray Catal. Cycloph. p. 48. N. 1. 
— megachila Pfr. Consp. N. 355. 
/S. Testa majore, fauee albida: 
Cyclostoma cancellatum Menke in litt. olim. 
— megachilum var. Chemn . 1. c. t. 9. f. 15—17. 
y. Liris spiralibus remotis, linearibus. 
<?. Liris spiralibus omnino deficientibus 
Habitat in insula Curasao. 
400 2. T. costata l?lenl&e. 
T. subperforata, oblongo-turrita , apice truncata, longitu- 
clinaliter valide plicato - costata , lineis elevatis obsoletissime 
decussata, carnea, superne coerulescens ; anfr. superst. 6 con- 
vexi, ultimus antice ascendens, basi spiraliter et confertim 
profunde sulcatus; apertura ovalis, basi protracta, intus auran- 
tiaca; perist. simplex, expansiusculum, album, margine supero 
dilatato, fornicato, columellari superne angusto, appresso, per- 
forationem subtegente, basi dilatato, subauriculato. — Operc. ? 
— Long. 16 , diam. 7 2 / 3 mill. Ap. c. perist. oblique 8 mill, 
longa. (Mus. Menke.) 
Cyclostoma costatum Menke in litt. 
— — Pfr. in Zeitschr. f. Mai. 1846. p. 47. 
— — Chemn. ed. II. N. 59. p. 64. t. 9. f. 9. 10. 
Cistula? costata Gray Catal. Cycloph. p. 58. N. 4. 
Tudora costata Pfr. Consp. N. 356. 
Habitat . . .? 
40 1 3. T. versicolor Pfr. 
T. anguste rimata, oblongo-turrita, apice truncata, nitida, 
pallide rosea, lineis aurantiacis cingulata; anfr. superst. 5 con- 
vexiusculi, supremi confertim costulati, medii laevigati, ultimus 
2 /s longitudinis subaequans, basi concentrice sulcatus; apertura 
verticalis, ovato-circularis, intus crocea; perist. simplex, album, 
margine dextro fere recto , columellari breviter reflexo. — 
fusco lineata; anfr. 4 ventricosis, plerumque dccussatis, nonnunquam laevi- 
gatis, striis spiralibus eminentioribus ; sutura distincta; apertura subovali, 
fauce crocea; peritremate patente, albicante; umbilico minimo. (Sow. 1, c.) 
