124 Mr. A. Adams on Gasteropodous Mollusca 
Fam. Litiopide. 
Genus DIALA, A. Ad. 
1. D. varia, A. Ad. Ann. & Mag. Nat. Hist. 1861. 
Hab. Gulf of Suez (M*Andr.), Japan (A. Ad.). 
2. D. suturalis, A. Ad. (Monoptygma), Sow. Thes. Conch. 
(Monopt.) pl. 172. f. 31, 33. 
Hab. Gulf of Suez (M‘Andr.), Philippines (Cuming). 
3. D. succincta, A. Ad. 
D. testa turrito-pyramidali; spira conica, elata; levi, solida, poite, 
lutescente, fascia'angusta rufa ad suturas ornata ; anfr. 8, plan 
transversim obsolete suleatis ; a: tu ultimo antice fascia alk 
succincto; apertura ovata, antice produeta et acuminata ; labio 
rec tiusculo, fusco tincto ; labro arcuato, simplici. 
. Hab. Gulf of Suez. 
A pretty species, quite distinct from any hitherto deseos 
being elevated and conical, 2 the aperture very much pro 
duced and narrowed in fron 
Genus ALABA, H. & A. Ad. 
1. A. imbricata, A. Ad. Ann. & Mag. Nat. Hist. 1862. 
Hab. Gulf of Suez (M‘Andr.), Japan (A. Ad.). 
2. A. lucida, A. Ad. Ann. & Mag. Nat. Hist. 1862. 
Hab. Gulf of Suez (M‘Andr.), Japan (A. Ad.). 
Genus STYLIFERINA, A. Ad. 
1. S. goniochila, A. Ad. Ann. & Mag. Nat. Hist. 1860. 
Hab. Gulf of Suez (M'Andr.), Japan (A. Ad.). 
2. SS. callosa, A. Ad. 
S. testa remige alba, vitrea, vix de red mia polita ; 
anfract , convexis, su argina . ultimo basi 
conv as wirds umbilieali callo btebte. apertura ‘ovato-lunari, 
labio obliquo, superne incrassato, antice sube 
Hab. Gulf of Suez. 
A small, polished, semipellucid shell, = turbinate re and 
with the umbilicus Manor ith a shining callus. T fice 
nucleolar whorls are ficken: off; but the genus ie. to 
be nic ne which more resembles Alaba than Stylifer 
pepe. 
