288 
CHONDROPOMA §. 4. 
§. 4. 
474 16 . th. liemiotiun Pfr. 
T. perforata, oblongo-turrita, tenuinscula, lineis spiralibus 
obsolete elevatis, longitudinalibusque confertissimis (10 — 12 in 
fasciculum junctis) levissime clathrata, non nitens, fusculo- 
albida, plerumque lineis interrupts rufis et fascia 1 rufa latiore 
inframediana ornata; spira subtruncata; sutura confertim den- 
ticulata ; anfr. 5 — 7 convexiusculi , ultimus antice breviter 
solutus, dorso carinatus; apertura subverticalis , ovalis; perist. 
subduplicatum : internum continuum, expansiusculum, externum 
a medio marginis dextri descendens, breviter patens, medio 
marginis sinistri in auriculam subundulatam terminatum. — 
Operc. normale. — Long. 16 , diam. 7 2 / 3 mill. Ap. intus 6 
mill, longa, 4 l / 2 lata. (Coll. Nr. 211.) 
Cyclostoma hemioium ( Chondropoma ) Pfr. in Proc. Zool. Soc. 9 Mart. 
1852. 
— — Chemn. ed. II. N. 396. t. 48. f. 3. 4. 
Habitat in insula Haiti (Salle). 
475 17 . Ch. HeweoiMbianum Adams, 
T. vix perforata, oblongo-turrita, tenuis, lineis elevatis 
concentricis et plicis longitudinalibus confertissimis illas trans- 
gredientibus (quarta vel quinta quavis plerumque validioribus) 
sculpta, diaphana, nitidula, fulvida; spira elongata, vix trun- 
catula; sutura denticulata; anfr. 5% — 6 convexiusculi, ultimus 
subteres, antice breviter solutus, striis spiralibus basi distinc- 
tioribus , confertis ; apertura verticalis , angulato - rotundata ; 
perist. tenue, subduplicatum, breviter et horizontaliter expan- 
sum. — Operc. pallidum, nucleo parum excentrico. — Long. 
15, diam. 7 */ 3 mill. Ap. intus 5 mill, longa, 4 lata. (Coll. 
Nr. 212.) 
Cyclostoma Newcombianum Adams Contrib. to Conch. N. 1. p. 8. *) 
*) Shell much elongated, conic; very pale orange, elegantly deco- 
rated with several spiral series of small brown oblique spots which have 
white shadows , the spots being in transverse series ; with numerous small 
but strong transverse whitish raised lines , which are mostly in groups of 
three to five and at the summit are developed into minute sutural crenu- 
lations ; spire with slightly convex outlines ; apex truncate with the loss of 
two or three whorls; five whorls remaining, with a well impressed suture; 
last whorl detached from the penult whorl near the aperture ; aperture sub- 
orbicular, quite angular above; inner peritreme slightly produced; outer 
peritreme moderately expanding, shining, reflected exactly into the plane of 
the aperture, rather thick, nearly wanting opposit to the penult whorl, 
