26 PEOCEEDINGS OF THE GEOXOGICAI. SOCEETT. [NoV. 20, 



boniferous period ; and this I hasten to announce, because two of 

 the species of Terebratula have puzzled me much, and raised some 

 doubts in my mind as to their age ; for they remind me more of 

 what we should expect to find in the Jurassic or even Cretaceous, 

 than in Carboniferous strata. 



Oarhon'iferous BracMopoda collected hy Dr. Fleming in the Punjab. 



Terebratula (vel Waldheimia) Fle- 



mingii, Dav. 

 • bipHcata, Brocchi (?). Var, 



problematica, Dav. 



Himalayensis, Dav. 



subvesicularis, Dav. 



Athyris Royssii, L^Eveille, sp. 



• subtihta, Hall, sp. Var. grandis, 



Dav. 

 Betzia radiahs, Phillips, sp. Var. 



Grandicosta, Dav. 

 Spirifera striata, Martin, sp. 



Moosakhailensis, Dav. 



hneata, Martin, sp. Var. 



Spiriferina octopUcata, Sow., sp. 



Rhynchonella Pleurodon, Phillips, sp. 

 Camaropboria Purdoni, Dav. 

 Streptorliynchus Crenistria, Phillips, 

 sp. 



-. Var. robustus, Hall. 



pectiniformis, Dav. 



Ortbis resupinata, Martin, sp. 

 Productus striatus, Fischer, sp. 



longispinus, Sow. 



Cora, D' Orhigny. 



semireticulatus, Sow. 



costatus, Sow. 



Purdoni, Dav. 



Humboldtii, D' Orhigny. 



Strophalosia Morrisiana, King{^. ) . Var. 



1. Terebkatula (vel Waldheimia) Flemingii, Dav. PI. I. figs. 1, 2. 

 Shell variable in shape — ovate, longitudinally oval, or slightly 



pentagonal; valves almost equally deep and convex, but usually 

 much depressed ; surface evenly smooth, without sinus or fold. Beak 

 and foramen small and slightly separated from the hinge -line by a 

 deltidium in two pieces ; lateral ridges of the beak continued along 

 tlie sides. Margin of the valves straight. Interior unknown. 



Of this species I have examined a number of specimens, which 

 were all derived from a bed which first appears in the Nilawan 

 ravine, and which Dr. Fleming considered to mark the commencement 

 of the Carboniferous formation, which gradually increases in thickness 

 as we proceed westwards towards the Indus. The shell could not,how- 

 ever, be identified with any Terebratula of the Carboniferous age from 

 any other part of the world, with which I am at present acquainted, 

 while its affinities would on the contrary recall to our mind certain 

 forms of the Jurassic period and more particularly those of the T. 

 numismalis group. The largest example measured 13 lines in length, 

 11 in width, and 8 in depth, and was proportionally much more 

 convex than the other specimens. 



2. Terebratula biplicata, Brocchi (?), var. problematica, Dav. 



PI. I. fig. 3. 



Shell oblong, obscurely pentagonal ; dorsal valve convex, rather 

 deeper than the opposite one, and prominently biplicated; ventral 

 valve flattened along the middle to a certain distance from the beak, 

 where a median rounded rib with a sulcus on either side is produced 

 and extends to the front. Beak'small, and truncated by a foramen 

 of moderate size. Margins of the valves sinuous. Interior unknown. 

 Length 20, width 8 lines. 



Of this species I am acquainted with but a single example, stated 

 by Dr. Fleming to have been found by himself in the Carboniferous 



