“ On Oolitic 
John Francis Walker, M.A., F.Gr.S., 
Bracliiopoda new to Yorkshire.” 
Mr. Fox Strangways having asked me to revise the list of 
Yorkshire Jurassic Brachipods, I thought it might he useful to 
the Members of the Yorkshire Philosophical Society to give a 
brief account of the Oolitic species not recorded by W. H. 
Hudleston and myself in our joint paper, “ Yorkshire Philo¬ 
sophical Report, 1876.” A supplement to Davidson’s Jurassic 
Bracliiopoda, in which the species will be fully described and 
figured, is being prepared by Mr. S. S. Buckman and myself. 
(1) I)iscina Humphresiana, Sowerby. Three specimens of this 
species, found in the Kimmeridge clay of At alt on, were sent to 
me by Mr. S. Chadwick to be determined. This species appears 
to be rare. The smooth variety was separated by Blake as 
D. elcvata. 
(2) Rhynchonella subvariabilis ? A few broken specimens, 
found by Mr. S. Chadwick in the Kimmeridge clay of Malton, 
probably belong to this species. 
(3) Terebratula RepeUniana , d’Orb. Mr. Chadwick found six 
specimens of this shell in the Coral rag of Helmsley. 
D’Orbigny thus describes the shell—Magnificent oblong species, 
having the extremity of the larger valve produced to a long 
beak. It occurs in France along with T. ins ignis, which species 
occurs at Helmsley. T. RepeUniana is nearly allied to 
Terebratula Moravia , docker. 
(4) Rhynchonella spinulosa var Fileyensis W. and B. Lower 
Calcareous grit passage bed, Filey (see paper by Walker and 
Buckman on Spinose Rhynchonella). 
(5) Waldheimia Gcsneri, Etalon. Coral rag, Langton Wold, 
Malton (see Report of Yorkshire Philosophical Society for 
1887.) 
(6) Waldheimia Margarita, Oppel, Coral rag, Seamer. 
(7) Waldheimia bolonicnsis , Sauvage and Rigaux, Coral 
rag, Malton; specimen in the Leekenby collection,Woodwardian 
Museum, Cambridge. 
(8) Waldheimia Rudleri, new species, Walker and Buckman. 
Shell oval, nearly as wide as long, beak ridges, sharply defined, 
beak incurved and truncated by a small foramen, both valves 
moderately convex, front margin not plicated, surface of the 
