252 
TUDORA §. 2. 3. 
Cyclostoma Chemnitzii Sow. Thes. N. 140. p. 141. t. 28. f. 155 156.*) 
— — Chemn. ed. II. N. 88. p. 92. t. 12. f. 32. 33- 
Choanoporna interruptum var. min. Gray Catal. Cycloph. p. 54. 
Tudora ? Chemnitzii Pfr. Consp. N. 368. 
Habitat in Africa meridionali. (Sow.) 
§. 3. 
413 15. T. nobilis Pfr. 
T. perforata , ovato-turrita, solida, longitudinaliter confer- 
tim filoso-plicata, parum nitida, fusco-violacea ; spira elongata, 
conica, integra, obtusula; sutura confertissime albo-crenulata; 
anfr. 7 modice convexi , ultimus antice breviter solutus , basi 
concentrice striatus ; apertura verticalis , irregulariter ovalis, 
intus fusca ; perist. album, duplex : internum breviter porrec- 
tum, expansiusculum , marginibus superne angulatim junctis, 
columellari brevissime arcuato, externum undique breviter 
patens. — Operc. paucispirum, profunde oblique sulcatum. — 
Long. 32, diam. 15 mill. Ap. intus 11 mill, longa, 8 lata. 
(Mus. Cuming.) 
Cyclostoma nobile (Tudora) Pfr. in Proc. Zool. Soc. 1852. 9 Mart. 
— — Chemn. ed. II. N. 390. t. 47. f. 27. 28. 
Habitat in insula Haiti (Salle). 
414 16. T. violaeea Pfr* 
T. subobtecte perforata, ovato-turrita, truncata, solidula, 
lineis elevatis spiralibus et confertioribus longitudinalibus ob- 
longo - granulata , haud scabra , non nitens, saturate violacea; 
spira turrita, truncata; anfr. superst. 4'/ 2 convexi, ultimus 
rotundatus; apertura sub verticalis , angulato - ovalis ; perist. 
duplex, album, continuum : internum expansiusculum, adnatum, 
externum margine dextro subincrassatum , anguste angulatim 
patens, columellari in laminam sinuosam, perforationem occul- 
tantem, nec claudentem dilatatum. — Operc. ut T. fasciae. — 
— Long. 20, diam. 11 mill. Ap. 7'/* mill, longa, 5 */ 2 lata. 
(Mus. Cuming et Coll. Nr. 180.) 
*) T. oblonga, subconoidali, apice dccollato ; anfr. 4 — 5 rotundatis, laevi- 
bus, fascia fusca spirali unica, vel fasciis 4 fuscis interruptis ; sutura distincta ; 
apertura subrotunda , superne subacuminata ; peritremate duplici , interno 
tenui , simplici , externo latiusculo , subexpanso , superne subacuminato, 
flexuoso ; umbilico minimo, (Sow. 1. c.) 
