FLEMINGIA. 
267 
Remarks. — This is evidently a very fine and remarkable species, but unfortu- 
nately in all the known specimens the upper part of the shell is too defective to 
enable its shape to be definitely made out. Its contour appears to have probably 
been obliquely conical, and scarcely indented by the sutures. The mouth, on the 
other hand, is very clearly shown, and is remarkable for its deeply excavate inner 
lip, its broad median tooth, its sharp bevelled outer margins, and its great 
obliquity, thus giving good generic characters. 
2. Genus. — Flemingia, de Koninch, 1881. 
" Shell conical, with a sharp apex. Whorls numerous, nearly flat, angulated at 
the circumference. Mouth often compressed, angular behind ; peristome not continu- 
ous. Lip oblique, thin, sharp. Columella thin, slightly twisted on itself, and forming 
an umbilical depression more or less large, but not perforated. Surface smooth, or 
simply covered with irregular oblique lines of growth, rarely spirally striated." 
De Koninck thus defines his genus, which seems on the whole to agree with 
Trochella, M'Coy. It extends from the Silurian to the Carboniferous. 
The following species appears to belong to it, as far as can be judged from the 
state of the specimens observed. 
1. Flemingia pehvebsa, Whidborne, sp. PI. XXVII, figs. 2 — 4. 
1889. Pleubotomaeia peeveesa, Whidborne. Geol. Mag., dec. 3, vol. vi, p. 30, 
Description. — Shell large, sinistral, broadly conical, of five rather slowly 
increasing volutions. Apex sharp. Spire pagoda-shaped, formed by the revolu- 
tion of a concave line, the slope of the upper whorls being much less than that of 
the body-whorl. Suture small, deep, simple, facing outwards. Whorls sloping 
out from the suture in a slightly convex curve to the widest and almost lowest 
part, where they turn suddenly and sharply through a right angle over a narrow, 
flat supersutural band, which is ornamented by three rows of small close 
tubercles, to form the flat oblique base. Ornament consisting of a slight cancella- 
tion formed by eight or ten very minute distant threads above the band (which 
is bounded by a more prominent ridge), crossed by very oblique lines which arch 
obliquely backwards. Mouth subcircular, transverse. Shell-structure rather thin. 
Size. — A small specimen is 19 mm. high by 23 mm. wide. A large specimen is 
about 30 mm. high. 
Locality. — Wolborough. There are two specimens in Mr. Vicary's Collection; 
two others in the Godwin- Austen Collection of the Museum of Practical Geology ; 
and another, perhaps from the same place, in Mr. Champernowne's Collection. 
35 
