PLATE 65. 



Fig. 1. 661. 5. CoNULAHiA niaoarensis. ( Pag. 294.) 



1 a. A fragment of a small spociincn preserving tlie slioll in great perfection. 



1 4. An enlargement of this surface, showing the eliaracter of tlie stiia- and intermediate spaces. 



1 f. An impression of the exterior of a .similar si)ecimen, wlien; tlie depressions between the stria; arc 



distinct, and show the longitudinal stria;, with tlic narrow punctured depressions between. 

 1 d. An enlargement of the same. 

 1 e. The interior of the shell of a large specimen, showing the characters of the preceding, but proporlionally 



stronger. 

 1 /. An enlargement of the same. 



I g. A cast of the interior, from near the base of the shell. 

 I S \- An enlargement of the surface of 1 g. 



1 A. The interior of a shell, showing only transvcr.se ridges, except at intervals where broken. 



Fig. 2. 662. 6. CoNDLARiA LONGA. ( Pag. 295.) 



2 o. A part of a large individual, showing one obtuse angle, with the strong channel, and a part of each of 



the adjoining sides. 

 2 6. A portion of the same enlarged. 

 2 c, d. A fragment of another individual, and an enlargement showing the character of the mould. 



Fig. 3. 660. 37. Ortiioceras undulatum. ( Pag. 293.) 



A fragment of this species from near the aperture. 



Fi^ 4. 658. 35. Ortiioceras cancei.latum. ( Pag. 292.) 



4 a, b. An impression of the exterior of this species, in iron pyrites, in which the sharp striic are well pre- 

 Bcrved. 



