352 WILMORE : THORNTON, MARTON AND BROUGHTON-IN-CRAVEN. 
I have endeavoured to get some knowledge of the relative 
abundance of the various fossils. 
Corals : — 
Syringopora ramulosa (Goldfuss). quite common. 
S. ramulosa, variety x (see notes at end of paper). 
Aulopora (?) 
Zaphrentis Omaliusi (Edwards and Hanne), common. 
Z. Omaliusi var. densa (R. G. Carruthers), very common. 
Z. Omaliusi var. ambigua (R. G. Carruthers), not 
common. 
Michelinia sp., rather rare. 
Caninia cylindrica (Scouler), very rare. 
Amplexus coralloides (Sow.), very rare. 
Echinodermata and Polyzoa are very common, and I have 
a good collection, but very few of them have been worked 
out. 
Brachiopods : — These are usually crushed and fragmentary, 
and it is rarely possible to obtain complete specimens, though 
impressions of shell fragments are common enough. The 
following have been identified : — 
Athyris planosulcata (Phillips), fairly common. 
A. cf. glabristria (Vaughan), fairly common. 
A. Royssi (L'Eveille), rare. 
Seminula of ambigua tj^pe. 
Orthotetes crenistria, {Streptorhynchus crenistria, Phillips). 
0. cf. Bristolensis (Vaughan). 
Ehipidomella Michelini (L'Eveille), common. 
Reticularia imbricata (McCoy), rare. 
Spirifer hisidcatus (Sow.), rare. 
Productus pustulosus (Phillips), fairly common. 
P. scabriculus (Martin). 
MoLLUSCA : — The common forms are : — 
LameUibranchs : — Conocardium Hihernicum and C. 
ali forme. 
Gasteropod : — Flemingia spiralis (De Koninck). 
These three molluscs are very common, and I have handled 
hundreds of the Gasteropod named. 
