VOL. XVI. (2) INFERIOR-OOLITE ECHINOIDS 179 
size of the granules on the test, and the closeness with 
which they are packed together, distinguish it from other 
species of the same genus. 
HYBOCLYPEUS HARFORDENSIS, sp. nov. Pl. XVI. 
figs. 3a and 3 4. 
TJ. Harford, near Notgrove, Gloucestershire. 
H. Harford Sands, Bajocian. 
y. Concave. 
Colin, E. T. Paris. 
Diagnosis—Test depressed, the height being .28 of 
the transverse diameter ; elongate transverse. Clameter =} 
Outline subhexagonal; the posterior margin truncated. 
Apical system elongate and excentric, being displaced 
towards the anterior end of the test. Ambulacra narrow ; 
particularly the anterior ambulacrum, the width of which, 
near the ambitus, is scarcely two-thirds of the width of 
the posterior ones. The two posterior ones curve in to- 
wards the anal canal. 
Remarks.—The specimen figured is the only one of 
the species that I have seen. It differs from FHyboclypeus 
caudatus and H. ovalis, in being much flatter. It is also 
less elongate than 7. cawdatws, and more elongate than 
H. ovalis. The anal canal is also narrower than in the 
last-named species. The absence of the characteristic 
“hump” of “4. gibderudus is sufficient to distinguish 
it from that species. 
ECHINOBRISSUS RICHARDSONI, sp. nov. Pl. XVEL, 
figs. La—le. 
T./,  Seven-Springs Quarry, near Cheltenham. 
H. [Clypeus-Grit.] 
About Zrwel/e7. | 
Colin. L. Richardson. 
Diagnosis—Test very depressed—the height being 
.447 of the diameter. The upper side is noticeably flat- 
tened. The outline is subcircular. 
