EXPLANATION OF THE PLATES AND WOOD-CUTS. 



Plate XXII. 



(Fossils from the Upper Secondary Formation, Cutch.) 



Fig. 1,2. Cucullcea virgata. Transversely elongato-quadrate, with projecting incurved 

 beaks, very convex, marked with many longitudinal irregular, sharp ribs ; posterior 

 margin obliquely truncated. Length lA inch, width 2\ inches. 

 Loc. Between Hubbye and Joorun. 

 Fig. 3. Nueula tenuistrata. Obliquely oval, finely striated concentrically ; beaka 

 close to the anterior extremity. Length 4 lines, width 5 lines. 

 Specimens very imperfect, along with Cucullcea virgata (fig. 2.). 

 Loc. Between Hubbye and Joorun. 

 Fig. 4. Nueula ? cuneiformis. Transversely elongate-elliptical, gibbose, smooth ; beaks 

 close to the anterior extremity, small, incurved. Length 6 Hues, width 10 lines. 

 Loc. near Charee. 

 Fig. 5, 5 a. Pectenpartitus. Broad, short-elliptical, depressed, marked with two con- 

 cave radii, which divide the surface into three parts, both externally and internally, 

 the lateral parts being flattened ; concentrically and minutely waved, waves alter- 

 nately larger and smaller; ears small, nearly equal. Fig. 5 a. is a magnified por- 

 tion of the surface. Length 6 lines, width 5 lines. 

 Loc. Hubbye Hills. 

 Fig. 6. Plicatula pectinoides, (M. C. t. 409.). If this differ at all from the British 

 species, it is in having rather more the habit of an Ostrea, which is apparent in 

 the expansion of the edge. 

 Loc. near Charee. 

 Fig. 7. Exogyra conica, (M. C. t. 26 and 605.). The few specimens most detached 

 from the matrix appear not to be quite so deep as those figured in the Mineral 

 Conchology. 



Loc. Katrore Hills. 

 Fig. 8. Ostrea carinata (Lam. Hist. Nat. VI. 216. M. C. SGo.)^ The specimens being 

 generally much concealed in the stone or broken, the determination of the species 

 is not possible ; the most perfect individuals resemble the young state of O. cari- 

 nata, but that species is so near in some slates to O. gregaria, (M. C. t. 111.) and 

 O. solitaria (M. C. t. 468,), that fragments cannot be distinguished. 

 Loc. near Charee. 

 Fig. 9. Ostrea Marshii, (M. C. t. 48.). The O. Marshii varies so much in different 

 localities, that we find no difficulty in referring this shell to that species, although 

 the plaits are more numerous than usual. 



This specimen is accompanied with an imperfect Plicatula (fig. 9 a.). 

 Loc. Katrore Hill. 

 Fig. 10. Terebratula intermedia, (M. C. t. 15, f. 8.) vur. A small specimen, and ra- 

 ther more deeply plaited than most of the European varieties of the species. 

 Loc. near Charee. 



