930 CATALOGUE .OF PHANEROPNEUMONA. 
6. SroastoMa JAYANUM. B. M. ° 
Shell globose-conic, yellowish-brown, sculptured with several spiral 
raised lines, of which four or five are visible on the upper 
whorls ; spire much and somewhat concavely elevated ; whorls 
43, convex, with a deep suture, last whorl subglobose ; aperture 
quite exactly semicircular, very slightly campanulate ; labrum 
moderately and above rather abruptly produced, scolloped by the 
produced carine; labium much detached from the penultimate 
whorl, slightly curved; umbilicus rather wide, with a mode- 
rately projecting lamella continued into the lower extremity of 
the labrum, Length 0.08, greatest breadth 0.09, least br. 0.075 
inch. 
Stoastoma Jayanum, Adams, Mon. p. 14; Pfr. Pneum. Mon. 
p. 322. 
Hab. Jamaica. 
7. Stoastoma MorIcANDIANUM. 
Shell globose-conic ; horn-coloured or very pale yellowish-green ; 
with numerous very fine somewhat tortuous raised spiral lines, 
of which three or four are visible on the spire; and two or 
three still more minute lines in each interspace; but in some, 
all the lines are nearly equal; spire well elevated, with the out- 
lines nearly rectilinear; whorls 4, quite convex, with a well- 
impressed suture; last whorl subglobose ; aperture rather larger 
than a semicircle, a little campanulate; labrum moderately and 
above not abruptly produced, scarcely modified by the larger 
spiral lines; labium moderately detached from the penulti- 
mate whorl, slightly curved and reflected; umbilicus narrow, 
with the spiral lamella very small. Operc. rather deeply con- 
cave, subauriculate, very finely papillose. Height 0.075, greatest 
breadth 0.085, least br. 0.075 inch. 
Stoastoma Moricandianum, Adams, in Ann. Lyc. New York, v. 
n.2, p. 66; Contr. to Conch. n. 8, p. 150; Pfr. Pneum. Mon. 
p. 322. 
Hab. Jamaica. 
§ 3. Shell striated, globose, or conoidal-depressed. 
8. SroasTOMA PFEIFFERIANUM. B. M. 
Shell imperforate, somewhat conoidal, depressed, not shining, pale 
wax-coloured-brownish, sculptured with crowded and distinct 
spiral ridges; spire slightly raised, with the apex glassy, rather 
