LOWER LUDLOW GROUP. 
Case and i 
Column of Reference to McCoy’s 
Drawers. Synopsis: and Figures of Genera. 

Hemithyris, p. 201. 
Siphonotreta anglica! p. 188. 
Hemithyris, p. 204. 

Hemithyris, p. 204. 
Hemithyris spheroidalis, 
pl. 1 1, fig. 4, p. 206. 
Hemithyris, p. 200. 
p. 209. 
Names and References; Observations, &c. 
Numbers and Localities, 
167 


New genus, or Athyris? 
Meristella? sp. A lobed shell with 
only lines of growth. 
Meristella didyma, Dalm., sp. (Silu- 
ria, 8rd ed. pl. 22, fig. 15). 
Athyris? obovata, Sow. (Siluria, 3rd 
ed. pl. 22, fig. 16, Davidson, Sil. 
Brach. p. 121, t. 12, fig. 19). 
Rhynchonella nucula, Sow. (Siluria, 
ard ed. pl. 9) figs. 9, 11; pl. 22, 
figs. 1, 2). 
Rhynchonella navicula, Sow. sp. (Si- 
luria, 3rd ed. pl. 22, fig. 12, David- 
son, Sil. Brach. p. 190). 
Rhynchonella Wilsoni, Sow. sp. var. 
(Davidson, Sil. Brach, p. 173, t. 23, 
fig. 10). 
Rhynchonella crispata, Sow. var. 
Pentamerus Knightii, Sow. var. elon- 
gatus, McCoy. 

a, 525, Llangammarch, Su- 
gar Loaf, Llandovery. 
b. 873, Llyn Alwen, Den- 
bighshire. 
a. 937, b. 875, Sedgley, 
ventral valve interior, F’. C. 
a. 524, Sunny Banks, Gray- 
rigg, Westmorland ; b. 874, 
Dudley, F. C. 
b. 876, Leintwardine; b. 
877, Cwm Craig ddu; a. 
938, Sedgley, F.C. 
b. 878, Erw Gilfach, Builth; 
a. 939, a.940, Sedgley, F.C.; 
b. 879, N. end of Potter 
Fell, Kendal; b. 880, Cow- 
an Head, Kendal; Cwm 
Craig ddu, Builth; Myn- 
ydd-y-gaer, 8. side; Leint- 
wardine. 
a. 941, a. 942, Sedgley, 
var. vera, F.C.; a. 523, 
Botville, Church Stretton; 
b. 881, Sedgley. 
b. 882, Leintwardine. 
b. 884, Woolhope. 
