Vol. 58. | BRACHIOPODA OF THE MALVERN HILLS. 137 
but several are in a fairly good condition of preservation. The 
identification of some small circular brachial valves found in the 
shales has been a matter of difficulty, because species in close agree- 
ment with respect to that valve may ditfer widely, even generically, 
as regards the pedicle-valve. 
(ii) Description of the Species. 
Order ATREMATA, Beecher. 
Family OBOLID &, King. 
OxBoLELLA (?) GRoomIt, sp. nov. (Figs. 1a, 16, & 2.) 
Shell oval, moderately convex, about as long as wide, widest 
towards the front, which is moderately to well rounded. Lateral 
Figs. 1 & 2.—Obolella (?) Groomii, sp. nov., from the Malvern 
Quartzite. (Prof. Groon’s Collection.) 
Ls 
(Fig. 1 6 is a side-view ; fig. 2 represents part of the exterior of the shell 
enlarged. | 
margins straight or shghtly convex, converging posteriorly to form 
a rounded beak. Huinge-area absent, or not well defined. Sides 
usually somewhat deflected. Surface covered by about 30 small 
but well-marked, concentric, rugose ridges. No radial stria. Casts 
of the interior show nothing but very faint traces of markings. 
Dimensions of type-specimen.—About 43 mm. long by 
5mm. wide. Type in Prof. Groom’s collection. Other specimens 
measure :— 
Length. Width. 
7. mm. 3mm. 
DS D 
43 45 
Horizon.—Malvern Quartzite (M 170, 244 ¢, & 476) associated 
with Kutorgina cingulata, var. Phillipsu. 
Observations.—Several examples of this shell have been 
collected by Prof. Groom, in honour of whom the specific name is 
