126 Mr. F. A. Bather on a 
Protoscolea latus, sp. n. 
Diaynosis.—Segments bear each one or two rows of papilla, 
of which not more than twenty are visible on one side of the 
compressed fossil. Spaces between papillse not less than the 
diameter of a papilla. Height of a segment about 0-25 mm. 
Width of specimen about 3mm. Ratio of segment-height 
to width 8/100. 
Ffolotype.—A specimen collected by Dr. H. L. Hawkins, 
and presented by him to the British Museum: Geol. Dept. 
A. 1946. 
Horizon.— Lower Ludlow, just above the Starfish bed. 
Locality.—Martin’s Shell, below Mocktree, near Leint- 
wardine, Herefordshire. 
This specimen (fig. 1) presents many features of interest 
other than those due to its remoteness in time and space from 
the species previously described. It is preserved in counter- 
pait as two imprints, but some of the substance of the integu- 
ment remains here and there as round calcified knobs, appa- 
rently where the wall was thickened by papille. ‘Ihe 
chemical composition of these knobs is unknown, and may be 
due to petrifaction of a chitinoid substance. . 
Proto scolex 
The specimen lies in a curve shaped like the head of a 2. 
Its outline is not very clear-cut asseen under a lens. ‘lhe 
diameter is about 3 mm. in the upper part of the ascending 
stem of the 2; towards the end of the curve it lessens 
gradually to 2°3 mm., then suddenly tapers or rounds off like 
the end of an earthworm. ‘Towards the lower end of the 
stem of the 2 the width gradually lessens to 2 mm., and then 
the fossil seems to fade away into the matrix, both outline 
