Pycnodontidce and Amioidei. 



31 



Fig. 67 .—Stemmatodus (Pycnodus) rhombus, Oolite. 



the fossil fishes referred to the Amioidei, Leptolepis (Fig. 69), 

 Thrissops, Megalurus, Oligopleurus, from strata of Jurassic age. 



Fig. 68.— Caturus furcatus, Lithographic Stone, Upper White Jura, Solenhofen. 

 p, pectoral fins ; i\ pelvic fins; a, the anal tin; d, dorsal fin; c, caudal fin. Just 

 above v are seen the pelvic bones. 



Protamia and Hypamia, from the Tertiaiy deposits of North 

 America, are clearly allied to Amia: and so also, probably, is the Table-case, 

 genus Cyclurus, from the Miocene of France and Switzerland. 



No. 48. 



Fig. 69. -Leptolepis sprattiformis, Lithographic Stone, Solenhofen. 

 p, pectoral fins ; v, pelvic fins ; a, anal fin ; d, dorsal fin ; c, caudal or tail-fin. 



