268 CISTULA $. 4. 
impressa; spira fere rectlinearis; apex truncatus; anfr. superst. 
5; apertura ovato-orbicularis; perist. duplex: internum subpor- 
rectum, externum subexpansum, concavum, acutum, utraque 
lateris sinistri extremitate in angulum productum et inflexum. — 
Diverg. media 28?; long. 0,58; lat. max. 0,26; lat. min. 0,2 
poll. (Ad.) 
Cyclostoma pauperatum dams Contrib. to. Conch. N. 1. p. 13. *) 
Cistula? pauperata  Pfr. Consp. N. 393. 
Habitat in insula Jamaica. 
439 15. €.? hilabris Yenlke. 
T. subimperforata, ovato-oblonga, decollata, solida, stris 
elevatis longitudinalibus et spiralibus argute decussata, albida 
vel fulvescens; anfr. superst. 4—5 convexiusculi, ultimus basi 
suleis concentricis validioribus notatus; apertura  verticalis, 
oblique ovalis; perist. duplicatum : internum breviter porrec- 
tum, externum incrassatum, breviter patens, superne angula- 
tum, album vel rufo-nigricans. — Operc.? — Long. 18!'/, 
diam. 6'/, mill. Ap. 6 mill. longa. (Mus. Cuming.) 
Cyclostoma bilabre Menke Moll. Nov. Holl, p. 8. N. 18. **) 
— —.  QChemnmn. ed. Il. N. 45. p. 52: t. 6: f£. 99; 93; 
— rufilabrum Beck mss. Som. 'Thes. N. 45. p. 106. t. 24. 
T: 810 M06) 
— -— Pol. et Mich. Gal. Douai I. p. 241. t. 24. f. 20. 21? 
Cistula rufilabris Gray Catal. Cycloph. p. 59. N. 9. 
—  ? bilabris Pfr. Consp. N. 394. 
B. Testa minore; long. 10'/4, diam, 52/, mill.; ap. intus 3*/, mill. longa. 
(Mus. Menke.) 
Habitat in ora orientali Novae Hollandiae (Lehmann, Menke); 
St. Croix? (Beck, Sowerby.) 
*) Shell very elongate and slender, conie; color —?; very coarsely 
striated transversely, not crenulated in the suture, spiral lines wanting; spire 
with nearly rectilinear outlines; apex truncate with the loss of three? whorls ; 
five whorls remaining, with a moderately impressed suture; aperture ovate- 
orbicular; inner peritreme on the right side less elevated above the outer 
one, which is moderately expanded, concave, sharp, produced into an angle 
and reflected at each extremity of the left side; umbilieus very small, con- 
cealed by the lip. (Adams l. c.) 
**) T. ovato-conica, apice decollata, imperforata, solidiuscula; anfr. 5 
convexis, porcis longitudinalibus transversisque densis eleganter texatis ; 
perist. duplici: externo reflexo, — Long. 4, 5; lat. 2, 5 lin. (Menke l1. c.) 
***) T. oblonga, cylindracea, fulvescente, apice decollato; anfr. 4—5 
spiraliter suleatis, suleis decussato-crenulatis, lateribus subrotundatis; sutura 
inconspicua; apertura elliptica; peritremate incrassato, subexpanso, nigri- 
cante. (Sow. l. c) 
