BRACHIOPODA AND PELEOYPODA. 5 



SuVorder : ROSTRACEA, Schuohert. 

 I'atnily: MTNCEONilLLlDm, Gray. 

 Genus: EHYNOHONELLA, Fischer de Wald. 

 RjkTNCHONELLA PLicATELLA, Sow. sp. Plate I, fig. 4 — 46, 5-56. 



(Synonytos s Davidson, Monograph of the British Fossil Biaohiopoda, Part III, Oolitic and Liaaic Brachiopoda, p. 86.) 



Dimensions. 



Length .............35 mm. 



Breadth 33 „ 



Thickness 24 >, 



The Bub-globose shell is of sub-trigonal shape, being slightly higher thM wide. 

 The ventral valve is moderately, the dorsal valvie highly, inflated ; front semi-cireular ; 

 the beak is short but adnte and father depressed, f orainen small, beak ridges- sharply 

 marked, falsfe area shalloiSr. The mesial fold stnd the sinus are very indistinctly 

 shown and almost levd with the Istteral parts of the valves; Stirface covered with a 

 variable number of very regulaa? rounded ribs. 



Locality and strdUgraphical position. — Mazdr Drik and Sembar Pass, Pdlyphe- 

 wws-Jimestone. 



BemarJca. — The specimens from Baluchistdn agree so well in character with the 

 abovenamed species that I have no doubt as to their identity ; they show particular- 

 ly well the highly convex ventral valve, and a comparatively, flat depressed dorsal 

 valve. Like the European type, Ehymtonella pUeatella from Baluchistdn varies very 

 little in its general shape, except that in some specimens the sinus is perhaps some- 

 what deeper than in others. 



II.-]!I[0LLTISCA, 



1. Class: PELlCYPODA, Goldfuss. 



1. Order: ANISOMTABIA. 



Sub-order: PECTlNACEA. 



Family: LIMID^. 



Genus: LIMA^ Brug, 



Lima [Plagiostoma ?] sp. Plate I, fig, 6. 



This genus is probably represented by an obliquely trigonal, rather flat shell of 

 moderate size. The surface is covered with numerous strong, rounded, radiating 

 ribs which seem to be somewhat narrower than the interstices which separate them ; 

 excepting, some fine concentric striae of growth, which are seen here and there, the 

 ribs are probably^ smooth. Only the anterior ear iia visible ; it is, however, very small 

 and i'ndistinctlf detached. 



