DAVIDSON KASHMEUE BEACHTOPODA. 41 



the Spirifera Keilhavii. But the fasciculate secondary ribs are 

 stronger, while the costse themselves are less deep." At page 59 of 

 the work above named this shell is stated to have been derived '' from 

 the Trias beds of Spiti Pass " ; but at page 111 of the same work 

 Mr. H. P. Blanford observes that the Spirifera Rajah (of Salter) 

 does not occur in the same bed with Triassic Ammonites, but in beds 

 decidedly below them — beds which other evidence combines to show 

 must be referred to the same general relative age (in the sense of 

 homotaxis) as the Carboniferous of Europe. This last view would be 

 confirmed by Captain Godwin-Austen's observations in Kashmere, 

 where the species is Carboniferous. 



4. Spieifeka YiHiAisrA, spec. nov. PI. II. fig. 4. 



Shell longitudinally oval, longer than wide ; hinge-line rather 

 shorter than the greatest width of the sheU. Both valves are convex, 

 the ventral being the deeper; and each is ornamented with from 

 eighteen to twenty simple ribs. In the dorsal valve the mesial fold 

 is divided by a longitudinal groove, while in the middle of the sinus 

 of the ventral there exists a small median rib. Beak incurved ; 

 area of moderate dimensions. One specimen measured 15 lines in 

 width by about 14 in length. 



Three valves of this Spirifer were found embedded in a single spe- 

 cimen of limestone from Barus, in the Valley of Kashmere. It is 

 distinguishable from 8. pinguis by its constant well-marked median 

 rib in the sinus of the ventral valve. 



5. Spieifeea Kashmeeiensis, spec. nov. PI. II. fig. 5. 



Shell transversely fusiform ; hinge-line long and straight, the 

 lateral margins becoming gradually attenuated. Ventral valve orna- 

 mented with about twenty simple ribs ; the sinus deep and divided 

 along the middle by a small median slightly projecting rib, which, 

 commencing at a short distance from the beak, extends to the front. 

 Length 7, width 18 lines. 



Of this Spirifer I have seen two or three ventral valves only, one of 

 them occurred in the same block of limestone along with S. Vihiana 

 obtained from the neighbourhood of Barus, the other specimens were 

 labelled Khoonmoo. It may be distinguished from the preceding 

 species by its very transverse spindle shape, and it is not very unlike 

 in form some examples of S. macropterus, Goldf., but may be distin- 

 guished by the presence of the small median rib in the sinus. 



6. SpIEIFEEA MoOSAKHAILEIfSTS, Dav. PL II. fig, 6. 



Spirifera MoosaTchailensis, Dav. Quart. Journ. Geol. Soc. vol. xviii. 

 p. 28, pi. 2. fig. 2. 



Two or three specimens, agreeing in character with those I have 

 already described from the Carboniferous limestone of Moosakhail and 

 Kafir Kote, in the Punjab, were found at Barus. Prof. E. Beyrich 

 informs us also that this shell was found in the Carboniferous lime- 

 stone of the Island of Timor. 



