Lorraine Faunas of New York and Quebec 253 
familiarity of the writer with the material covered, but it is hoped 
that nevertheless they may have some value to those interested 
in these, or corresponding strata elsewhere. 
. — 
1. Lingula clochensis^ sp. nov. 
{Plate II, Figs. 11 A, B) 
Pedicel valve 20 mm. long; width 14 mm. along the anterior 
half of the valve, the sides being parallel here. Posteriorly, to- 
ward the beak, the shell narrows, becoming 12 mm. at 7 mm. from 
the beak, the postero-lateral parts being moderately convex, 
producing a rather obtuse beak. Anteriorly the lateral margins 
round rapidly into the moderately convex anterior outline. The 
anterior outline of the muscular scars reaches 10 mm. from the 
beak. Only the anterior part is clearly defined. This indicates 
the presence of a narrow low median septal ridge, less than 1 mm. 
in width at the anterior end. The total width across the muscular 
area anteriorly is 7.5 mm. Anteriorly this muscular area is 
crossed by transverse striae similar to those figured by Hall and 
Clarke, plate I, vol. viii. Palaeontology of New York, in the case of 
the species identified by them as Lingula vanhornii {= L. mo- 
desta, according to Schuchert), and in Lingula densa. Towards 
the sides these transverse striae are convex toward the front, but 
curve forward near the median septum. Convexity of the valve 
fully 2 mm. Notwithstanding this convexity, the median parts 
of the shell, from the beak to the anterior margin, are somewhat 
flattened from right to left, the area of flattening widening an- 
teriorly, including nearly the entire width of the muscular area 
at midlength of the shell, and nearly the entire width of the valve 
at the anterior margin. Laterally, from the antero-lateral mar- 
gins almost to the beak, the valve is flattened also, producing a 
moderately angulate outline in cross-section, the median flattened 
surface meeting two lateral flattened surfaces at angles of about 20 
or 25 degrees. There are indications of concentric striae, and 
anterior to the muscular area the interior shows fine striae, 
radiating as though from the beak as a center. It is possible that 
similar radiating striae were present on the exterior of the shell. 
Brachial valve, in the only specimen at hand, having a con- 
vexity of fully 2 mm., so that the total depth of the shell from 
valve to valve equals 4 mm., or one-fifth the length of the shell. 
