VOL. XVI.(2) | INFERIOR-OOLITE ECHINOIDS 175 
PEDINA ROTATA, Wright. 
The largest specimen of this species that we have seen 
was obtained by Mr C. Upton from “ Worgan’s Wood,” 
near Stroud. Its diameter is 60 mm., and its height 
38 mm. 
Pedina rotata.—Upper Trigonia-Grit, railway-cutting, near 
Andoversford (J.\W.T.); Leckhampton Hill (L.R.); Scots- 
quar Hill, near Stroud; Worgan’s Quarry and Wood, near 
Stroud (C.U.) Upper Coral-Bed, near The-Frith Quarry, 
near Painswick (H.M.H.); and Stockend Quarry, near 
Stroud (H.M.H.). Edwin Witchell cites it as occurring in 
the Upper Coral-Bed around Stroud." 
POLYCYPHUS DESLONGCHAMPSI, Wright. 
This is essentially a Pea-Grit form, and for that reason 
a useful zonal fossil. 
Polycyphus Deslongchampst.—Pea-Grit, Bredon Hill (E.T.P.) ; 
Cleeve Hill (E.T.P.); Crickley Hill (Wr.) ; Andoversford 
(j.W.T.); Well House, near Haresfield (H.M.H.) ; Hud- 
dingknoll Hill (H.M.H.); and Randwick, near Stroud (C.U.) 
POLYCYPHUS NORMANNUS, Desor. 
According to Wright, this species ranges into the Great 
Oolite. 
Polycyphus normannus.—U pper Trigonia-Grit, Rodborough Hill, 
near Stroud (C.U.); [? same horizon], near Andoversford 
(J.W.T.); Upper Coral-Bed, Worgan’s Quarry (C.U.) 
Wright records it from the ‘* Upper Trigonia-Grit,” Inferior 
Oolite, near Hampen.* 
PSEUDODIADEMA DEPRESSUM (Agassiz). 
In the Cotteswold Hills this species occurs plentifully 
in the Pea-Grit. Forms that are intermediate between it 
and Diplopodia pentagona, M’Coy, have been procured 
from the Oolite Marl. In the Rubbly Beds, principally at 
Doulting, Somerset, small examples are not uncommon. 
1 “Geology of Stroud, etc.” (1882), p. 38. 
2 Disused quarry at the foot of Hampen Hill, and visible from the railway. 
