Vol. 54.] 



CORALLIAN ROCKS OF TJPWARE. 



607 



the material was being removed, I was able to examine two or three 

 cartloads of the rock. The species enumerated in the appended 

 list were obtained, all occurring in the white limestone at the top, 

 and several also down to the bottom of the section. Gidaris 

 Jlorigemma -seines were, abundant down to what proved to be the 

 top of the Elsworth Rock. 



List of JFossils from the foregoing Section. 



* Cerithmm mitricatum, Sow, 



* lAttorina muricata. Sow. 



* Area pectinata, Phil. 

 Avicula incsquivalvis (1), Sow, 

 Cucullcea elongata, Sow, 



* Isocardia (1) sp. 

 Lima rudis. Sow. 

 L. rigida, Sow. 



* Lithodomus inclusus, Phil, 



* Ostrea (^Alectryonia) gregaria, Sow. 



* 0. {Exogyra) nana, Sow. 



* Pecten articulatits, Schloth. 



* P. vimineus, Sow. 



Terebratula insignis var, maltonen- 

 sis, Oppel, 



* Vermilia sulcata, Sow, 

 Seirpula deplexa (?), Phil, 



[Those marked with an 



It will be seen at once that this is essentially the Upware Rag 

 fauna. All the species here mentioned have been found in the Rag, 

 except the foraminifera ; and Echinobrissus, found by Roberts, not 

 in the Rag, but in the floor of the Southern Quarry — that is, in the 

 highest oolite. The Rag has probably never been searched for 

 foraminifera. IN^early all these species are particularly character- 

 istic of the Rag, while Cerithium muricatuni, Littorina muricata, 

 Area pectinata, Lima rudis^ L. rigida, Lithodomus inclusus, Alectry- 

 onia gregaria, Pecten articidatus, P. vimineus, Isastrcea, Montlivaltia, 

 Thamnastrcea. and Cidaris fiorigemma have never been recorded 

 from the I^orthern Quarrj^, though most of them occur in the highest 

 oolite of the Southern Quarry. 



The following were obtained lower down in the section, from the 

 beds marked (2), chiefly in and on the hard crystalline bands : — 



Serpula sp, 



* Isastrcea (?). 



* Montlivaltia dispar, Phil, 

 Ehabdopliyllia sp, (?), 



* Thamnastvisa concinna, Groldf. 



* Gidaris florigemma, Phil, (spines). 

 C. Smithii, Wright (spine). 

 Echinobrissus scutatus, Lam. 



* Pentacrinus sp. 



Holcospongia glomerata (Quenst.). 

 Holcospongia, another sp. (?). 



Haplophragmium (1). 



Vaginulina ? legumen ? (or Denta- 



Una ?). 

 Valvxdina Q). 



asterisk were abundant.] 



Cerithium muricatum, Sow. 

 Littorina sp, 



Exogyra nana. Sow, 

 Gervillia aviculoides (?), Sow, 

 Lima rigida. Sow, 

 Lithodomus inclusus, Phil. 

 Pecten articidatus (?), Schloth. 

 P. vimineus, Sow. 

 Perna sp. 



Cidaris florigemma, Phil, (many 



spines). 

 C. Smithii, Wright (spine), 



Pentacrinus sp. 



Rhabdophyllia sp. (?). 



Thecosmilia anmdaris, Flem. (very 



abundant). 

 Thamnastrcea concinna, G-oldf, 



Terebratula insignis, var, maltonensis, 

 Oppel. 



