214 Mr. F. A. Bather on British Fossil Crinoids: 
Cyathocrinus mimus, MS. Museum labels by J. W. Salter. 
Cyathocrinus nodulosus, nom, nud. pars, i. e. Museum labels by J. W. 
Salter, but not the specimen said to be so referred to in Cat. Camb, 
Sil. Foss. p. 123. 
The description, measurements, and diagrams of this species 
given in this paper are based entirely on British specimens, 
while in the Swedish paper reference is made throughout to 
Gotland specimens. ‘hus any differences due to differing 
conditions may be more clearly appreciated. 
The British specimens examined are the following :— 
In the British Museum: 
57480, crown and half an inch of stem, seen from the right 
side, and showing the ventral sac crossing between 
the arms. Matrix a blue-grey shale. Dudley. 
From the collection of Mr. S. Allport, and formerly 
labelled C. nodulusus. (PI. XIII. fig. 1.) 
E 1450, crown, free from matrix, which was a very soft yellow 
shale; shows origin of ventral sac. Dudley. From 
the collection of Mr. J. Johnson. (Pl. XIIT. fig. 2.) 
E. 5619, the distal end of a ventral sac, referred with hardly 
any doubt to this species. Dudley. From the 
collection of Mr. J. Gray, of Hagley. (PI. XIII. 
tig. 6.) 
57421, crown with 8 to 10 columnals; showing covering- 
plates well; with a rugose surface produced by 
weathering. Matrix a blue-grey shale. ‘Tividale, 
Dudley. ~ (Pl XU gies) 
FE 6002, crown with plates of ventral sac well marked, and 
with a radial facet exposed. Matrix a blue shale. 
Dudley. Johnson collection. (PL XIII. figs. 8 
and 11.) 
57142, arms with covering-plates and ventral groove well 
shown. In limestone. Dudley. Gray collection. 
(Bie Eire 10;) 
57060, a dorsal cup free from matrix; showing radial facet. 
Dudley. Gray collection. (PI. XIII. fig. 11.) 
E 6008, dorsal cup, rather broken but very characteristic ; 
showing shagreen ornament. Yellowish matrix. 
Dudley. From the collection of Mr. J. Rofe. 
(Pl. XU ies 12.) 
E 1367, arms and two thin transverse sections cf same. 
Dudley. Rofe collection. (Zincotype, p. 211, 
fig. 4.) 
E 6004, longitudinal and transverse thin sections of the stem, 
