42 rEOCEEDING« OF THE GEOLOGICAL SOCIETY. 



7. SpirifePvA Barusien^sis, spec. nov. PI. II. fig. 7. 



Shell siibrhomboidal ; hinge-line straight and as long as the width 

 of the shell ; cardinal extremities angular and projecting ; sinus wide. 

 Surface ornamented wdth about fifteen ribs, those in the sinus being 

 much smaller than those on the lateral portions of the valve. Length 

 2|, width 5 lines. 



Of this small Spirifer a single ventral valve was found in the 

 Carboniferous shales or Zewan beds of the Yalley of Kashmere. It is 

 quite different in shape and character from the other three species, and 

 remarkable on account of the great comparative wddth of its sinus. 

 The description of this shell and that of S. KasJimeriensis are neces- 

 sarily very incomplete, since our material consists of ventral valves 

 only. 



8. Ehtstchonella Baeumexsis, spec. nov. PI. II. fig. 8. 



Shell elongated, subtrigonal ; dorsal valve convex, the mesial fold 

 being very wide and composed of three ribs, of which the central 

 is the most elevated ; three smaller ribs occupy each of the lateral 

 portions of the valve. Yentral valve rather deeper than the opposite 

 one, the wide sinus having two ribs, while three or four sm.aller ones 

 occupy each of the lateral portions of the valve. Beak much pro- 

 duced and incurved at its angular extremity. The lateral portions 

 of the ventral valve at and near the beak are much depressed and 

 form a convex curve, wdiich indents to a considerable extent the 

 corresponding portion of the dorsal. 



Of this species two longitudinal halves only were found in the 

 Zewan beds. Valley of Kashmere ; but they were sufficiently perfect 

 to enable me to accurately restore the w^anting portions. The largest 

 example measured, when perfect, 9 lines in length, by 7 in width, and 

 4 in depth. It bears a certain resemblance to some examples oillhyn- 

 clionella angulata, Linn., with which, however, it cannot with cer- 

 tainty be identified. 



9. Rhynchonella Kasmeeie]N"sis, spec. nov. PL II. fig. 9. 



Shell oblato-deltoidal, wider than long. Ventral valve convex, 

 with a wide deep sinus possessing four or five rounded ribs of unecjual 

 width, namely, a small central one intervening between two larger 

 ones. Three or four ribs occupy also each of the lateral portions of 

 the valve. Beak small, incurved. Dorsal valve convex, smooth at the 

 umbone ; mesial fold wide, evenly convex, and ornamented with four 

 ribs, three others occupying each of the lateral portions of the valve 

 in the contiguity of the margin. 



Of this shell a single specimen was found in the Zewan beds. Valley 

 of Kashmere ; in form it approaches some examples of B. j^'^gnus^ 

 but differs by the shape of the ribs in the sinus. The study of more 

 specimens would be desirable. 



10. Streptorhynchtjs crenisteia, PhiUips. PL II. fig. 10. 

 Spirifera crenistria, PhiUips, Geol. of Yorkshire, vol. ii. pi. ix. 



fig. 6. 



