136 MR. C. A. MATLEY ON THE CAMBRIAN [Feb. r902- 
Mr. Hugh Strickland), the collection of brachiopoda which their 
labours have made known has been disappointingly meagre, both as. 
regards individuals and species, 
In 1871 the full list, according to Phillips,! was as follows :— 
Hollybush Sandstone. Malvern Shales. 
Lingula squamosa, Holl. Lingula pygmea, Salter. 
> another species. Obolella Salteri, Holl. 
Obolella Phillipsti, Holl. Spondylobolus. 
» two other species. A minute bivalve. 
A small unascertained bivalve. 
Diagnoses of some of the above were given in Holl’s paper of 1865,” 
but the descriptions were scanty and the figures not very satis- 
factory; moreover, the species were in some cases admittedly 
founded on very imperfect material. It is unfortunate, too, that the 
present whereabouts of his type-specimens is unknown. Prof. Groom 
has endeavoured to trace them, but without success. Davidson, in 
his monograph, redescribed the then known species, treating, how- 
ever, Holl’s Obolella Phillipsii as a synonym of Billings’s Autorgina 
cngulata; but it is clear that, excepting the Autorgina of the 
Malvern Quartzite, he had very little material to help him. 
Of the species in the above list, Lingula squamosa is obscure and ot 
doubtful value: it may have been founded on fragments of Autorgina. 
I have not found any specimen to agree with Davidson’s figure of 
this species (see the description of Obolella Groomii, sp. nov., p. 137). 
Phillips figured in a woodcut his so-called Spondylobolus (op. cit. 
p. 68), but stated no dimensions and gave no description. The 
figure suggests that the fossil may have been an Acrotreta. 
There is also a list of Malvern Cambrian fossils in the Appendix 
to Murchison’s ‘ Siluria’ 4th ed. (1867) p. 541. It will be seen 
from p. 507 that the list originally drawn up by Salter was emended. 
by Etheridge, Morris, and Jones. The lst apparently contains. 
some errors. Thus Obolella Phillipsi is given for the Black Shales, 
and O. Salteri for the Conglomerate and Sandstone, in which 
deposits they probably do not occur. Orthis lenticularis is also 
stated to occur in the Conglomerate; this statement too requires. 
verification, as Kutorgina may easily have been mistaken for an 
Orthis. 
The following notes and descriptions are mainly based on the 
examination of a number of specimens which Prof. Groom has. 
forwarded to me for identification. The majority have been collected 
by himself in the course of his geological researches in the Malvern 
district ; the remainder have been lent to him by the Museums at 
Oxford, Worcester, and Malvern. Some specimens have also been 
kindly lent to me from the collection of the Geological Survey. 
In studying these forms I have had the advantage of seeing 
Prof. Groom’s own notes and sketches. 
Many of the fossils are fragmentary or imperfectly preserved, 
1 «Geol. of Oxford & the Valley of the Thames’ 1871 pp. 66-68. 
2 Quart. Journ. Geol. Soc. vol. xxi, p. 72. 
