ii6 PROCEEDINGS COTTESWOLD CLUB iyi6 
Messrs. Terquem and Berthelin, in the memoirs of the 
Geological Society of France for 1875/ have figured and 
described a number of specimens from the Margaritatus-^eds 
of the Middle Lias of D’Essey-les-Nancy under two species, 
HemisphcBranthos florida and H. costifera, the former having the 
rays flattened or petal-like, the latter with rounded rays. The 
generic name was apparently adopted by the authors on 
account of the sphericity and flower-like aspect of the spicules, 
but as they differ in no other respect from those of typical 
Chirodota, it appears to me to be a somewhat unnecessary 
refinement, and I therefore, prefer to retain the older name, 
especially as there is nothing pointing to generic differences 
in the animals themselves. 
For a number of years I have washed and examined 
microscopically many samples of clays and marls from the 
Inferior Oolite and Lias, and among the numerous forms of 
microzoa produced I have found a number of spicules of 
Chirodota. The following is a list of the localities and deposits 
from which I have recorded them : — 
BED 
HEMERA 
LOCALITY 
Inferior Oolite 
“ Sponge Beds ” . 
schloenbachi 
Peas Hill Quarry, Shipton Gorge, 
? Horizon of the 
schlcenbachi 
Dorset, and Haselbury Mill Quarry- 
near Crewkerne, Somerset 
Stinchcombe Hill, near Dursley, 
White Oolite 
Sandy Marl 
triieUei ? 
Glos. 
Baggerbush Lane Quarry, Bradford 
Upper Coral Bed . 
tyuellei 
Abbas, near Sherborne, Dorset 
Timsbury Sleight, Timsbury, near 
Discites-'BeO. 
disc it ce 
Radstock, Somerset 
Frogden Quarry, Oborne, near 
Fourth Coral Bed 
muychisoncB 
Sherborne, Dorset 
Frith Quai'ry’-, near Painswick, Glos. 
Pea Grit . . 
mnvchisoncB 
Steanbridge, near Stroud, Glos. 
(lower portion) 
Lias 
Lept(Biia-li5ci\ 
falciferi 
oxynoti 
King Street, Stroud, Glos. 
Blue Clay 
oxynoli 
Gloucester Gas Works, Bristol Road, 
Glos. 
ditto 
Blue Clay, with 
Ammonite; of 
A ymatunt-type 
avmati ? 
Morland’s Match Works, Bristol Rd., 
[Glos. 
Lower Tuftley, near Quedgley, Glos. 
Memoirs Soc. (.icol. dc France, Ser. 2, vol. 10 (1875), p. 112, pi, xx. 
i 
