EXPLANATION OF THE PLATES AND WOOD-CUTS. 



Fig. U. Terebratula biplicata, (M. C. t. 90 and 437, f. 2, 3.) var. A variety of this 

 variable species found in the red chalk at Hunstanton, is precisely similar in form 

 to our specimen, except that it wants the angle on each side of the beak which 

 is here obscurely visible. 



Loc. Jooria Hill. 

 Fig. 12. Terebratula Sella, (M. C. t. 437, f. I.) var. A rather longer shell than the 

 British fossil, and deficient in the central plait which most generally occurs in 

 full-grown individuals of that species. 



Loc. Pass of the Hubbye Hills. 

 Fig. 13. Terebratula concinna, (M. C. t. 83, f. 6.) ? A larger shell than the one figured 

 in M. C. and not so neat, but hardly possessing any character sufficiently strong 

 to mark it as a species -, there are, however, rather fewer plaits. 



Loc. Jooria Hill. 

 Fig. 14. Terebratula nobilis. Tetrahedral, rounded, sharply plaited ; plaits about 1(), 

 extending to the beaks, 4 or 6 of them much elevated along the middle of the 

 disk ; beaks small, adpressed ; sides concave near the beaks. 



A large handsome species ; when young the general form is depressed, but the 

 middle is even then much elevated. Length and width, each If inch, depth of the 

 valves united, sometimes more than 2 inches. 



Loc. near Charee. 

 Fig. 15. Terebratula dimidiata, (M. C, t. 277. f. 5.) ? Whether this be T. dimidiata 

 or T. inconstans, (M. C. t. 277, f. 4.) is a question the specimens are not perfect 

 enough to settle. The flattened form of the specimen figured agrees with that of 

 T. dimidiata, but the beaks of our specimens appear too much incurved (perhaps 

 from pressure) and so to approach T. inconstans. 



Loc. Jooria Hill, and near Charee. 

 Fig. 16. Terebratula major. Transversely obovate, gibbose, plaited ; plaits angular, 

 extending to the beaks, about 30, half of them on one side of the front slightly 

 raised ; beak of the larger valve prominent, slightly incurved. A larger species 

 than the last, of the same family, well distinguished by its width and even surface. 

 Length, If inch, width 2| inches, depth of the valves united 1^^ inch. 



Loc. near Charee. 



Plate XXIH. 



(Fossils from the Upper Secondary Formation, Cutch.) 



Fig. I, 1 a. Buccinum pumilum. Ovate, pointed, transversely striated ; spire small ; whorls 

 4, smooth in the middle, slightly convex ; aperture ovate, pointed at both extre- 

 mities. Fig. 1 a. is magnified twice. Height 3 lines, diameter 2 lines. 

 Loc. Mhurr. 

 Fig. 2. Belemnites canaliculatus, Schloth, (Zieten, t. xxi. f. 3.) ? The fragments we 

 have of this Belemnite agree well with Zieten's figure of B. canaliculatus, which 

 is very probably not distinct from B. sulcatus of Miller (Geol. Trans., 2nd Series, 

 vol. ii. part 2, p. 59, PI. VIH. f. 3.) 

 Loc. near Charee. 



