Palceozoic Bivalved Entomostraca. 265 



sembles it in general habit. Cythere corhuloides *, Jones & 

 Holl, from Silurian strata, seems to be a related form f. 



Locality/. In the Scar Limestone, north of Storr Moss (near 

 Silverdale Station), Lancashire. 



39. Macrocypris carhomca^ G. S. Brady, MS. 

 (PI. IX. figs. 9 a, 9 5.) 



Subtrigonal, highest (and gibbous) behind, convex ; dorsal 

 border very convex, with a long anterior and a short abrupt 

 posterior slope; anterior extremity rounded j posterior low 

 and subacute ; lateral contour elongately subovate, pointed in 

 front and wide behind ; riglit valve largest, and overlap- 

 ping the dorsal and ventral margins of left valve; surface 

 smooth. Length -gV inch. 



This form was figured in a paper on Carhonia as a doubtful 

 variety of C. fahuUna, J. & K.f* Prof. G. S. Brady has 

 since examined specimens of it for Mr. John Young (who 

 discovered the species), and has named it as above. We 

 are glad to adopt this view of the matter, and on such good 

 authority. 



Mr. Young informs us that it occurs, along with Carhonia 

 fabulina, and fish and plant remains, in the Millburn beds at 

 Campsie, Stirlingshire. 



40. Carhonia Wardiana, sp. nov. 

 (PI. IX. figs. 10 a, 10 6.) 



Elongately suboval, convex ; dorsal border regularly arched; 

 ventral border straight, curving up to form the extremities ; 

 one extremity a little more pointed than the other ; lateral 

 contour subovate, pointed anteriorly; surface covered with 

 closely-set, irregular, fine strias or wrinkles ; traces of a 

 slightly sunken circular muscle-spot (on some examples). 

 Length -^V inch. 



Specimens of this species were sent us by Mr. Jolin Ward, 

 F.G.S., of Longton, from a limestone of the Upper Coal- 

 measures of North Stafibrdshire. These specimens, being in a 

 hard matrix, are not very easy to make out; but the species 

 evidently comes near to Carhonia Agnes^ Jones, from the 

 South-Wales coalfield. 



* Ann. & Mag. Nat. Hist. 1SG9, ser. 4, vol. iii. p. 211, pi. xiv. figs. 

 4 a-5 b. 



t Var. injlata of Carhonia fuhulina also simulates tLis species in some 

 of its features. 



X Ann. & Mag. Nat. Hist. 1879, ser. 5, vol. iv. p. 31, pi. ii. fig. 24. 



Ann. & May. N. Uist. Ser. 5. Vol. xviii. 18 



