TROCHID. 313 
like Phasianella, but very pearly inside. 7. lineatus, Lam. 
(lacxxi, 53). 
LESPERONIA, T'ournouer. Shell pearly, imperforate, elongate- 
conical, whorls in the type carinated ; aperture entire, oblique, 
pyriform ; peristome continuous, margined ; columellar margin 
anteriorly expanded. Operculum (7). Distr.— Fossil. Oligi- 
cene; Dax... 7. princeps, Tourn. (lxxxi, 54). 
CANTHARIDUS, Montfort. (Cantharis, Fer. Cantharidium, 
Montf.) Shell ovate, thin; outer lip acute; the columella wants 
the conspicuous tooth seen in Elenchus; the whorls are encircled 
by striz and not polished; interior highly iridescent. 6 sp. 
Australia. 7. iris, Chemn. (1xxxi, 55). 
FLEMINGIA, de Koninek, 1881. (Trochella, M’Coy.) Shell 
thin, extended-conical, pointed; whorls numerous. striate or 
smooth, periphery usually angular; columella thin, slightly 
extended, forming a point below. Sil. to Carb. /. Hisinger- 
zanus, de Kon. 
BANKIVIA, Beck. Shell subulate, with sharp spire, polished, 
bright-colored; whorls smooth, flattened, without epidermis ; 
aperture subovate, rather large, not nacreous within; columella 
twisted, truncated in front; outer lip simple, sharp. Australasia. 
T. varians, Beck (1xxxi, 56). 
TROCHOCOCHLEA, Klein. (Osilinus, Phil. Labio, Gray. Mela- 
graphia, Stentz.) Shell elevated, turbiniform, whorls. bluntly 
angled at the periphery, or with revolving carine; outer lip thin, 
smooth within; inner lip spreading, twisted, dentate below; no 
umbilicus. 10 sp. Europe, W. Africa, Australia. 7. multi- 
carinatus (1xxxi, 57). 
GAZA, Watson. Shell trochiform, pearly ; margin of aperture 
callously reflected ; columella mucronately angulated in front; 
umbilicus with nacreous callus. Operculum corneous, multi- 
spiral. Distr.—T. dxdala, Watson. Fiji Is. 610 fathoms. 
Related in general form to Trochocochlea, but strongly distin- 
guished by its reflected lip. 
CALLOGAZA, Dall. Resembling Gaza, but the umbilical callus 
is only partly reflected over the umbilicus, the pillar is straight, 
not mucronate, and the nacreous layer is overlaid by a thin, 
porcellanous layer and a delicate epidermis. 2 sp. West 
Indies. 7. superba, Dall. , 
mMicRoGAZA, Dall. Shell flattened, rotelliform, resembling a 
Gaza without reflected lip or umbilical callus, brilliantly nacreous 
when fresh, and having a distinctly scalariform umbilicus. West 
Indies. 7. rotella, Dall. 
MonoponTA, Lam. (Labio, Phil.) Shell oval or conoidal, not 
umbilicated ; aperture rounded, angulated behind; columella 
arcuated, truncated at the base, and terminating in a tooth with 
channeled side; whorls with revolving riblets, which are usually 
21 
