Teleosts from Russell Substage. 35 



The following are the parts shown in the three specimens. 

 In the Bazine specimen: the body; a pectoral and a pelvic tin. 

 both practically complete; part of the lower lobe of the caudal 

 fin; an imprint of the dorsal fin; a series of scutes at orij^in 

 of the anal tin. Faint traces of part of the dorsal scutes can 

 be seen in this and the specimen next mentioned. In the 

 Lincohi Center or Wait specimen: nearly all of the head and 

 body; the pelvic bones, several pelvic scutes and most of a 

 pelvic tin; numerous intermusculars. In the Martin Allen 

 specimen: the entire body; in greater or less part, a dorsal 

 tin, a pectoral fin, and both pelvic tins, with the basal scutes 

 of the two former, and a pelvic bone supporting one of the 

 latter; the clavicle; a part of a lateral line. 



Ribs, vertebrae and scales are shown more or less satis- 

 factorily in all three of the specimens. In the dorsal fin, the 

 number of rays preserved is 19; there are doubtful indica- 

 tions of one or two smaller spines in front of the one men- 

 tioned, and of an additional soft ray at the posterior end. 

 The condition of preservation of most of the scales is such 

 that their ctenoid character might be overlooked on a casual 

 inspection. The lateral line is displayed, showing the tubes, 

 in but one of the specimens, and in that for only the short 

 distance covered by twelve consecutive scales. On this speci- 

 men, its former presence is doubtfully indicated further 

 forward, after an interruption, on two or three scales of the 

 same row. 



Pelecorapis microlepis sp. nov. 

 Plate II, fig. .3, and Plate III. 



Represented by a specimen which includes most of the 

 trunk and the tail. 



Much smaller than Pelecorapis variiis; the body more 

 elongate and less deep than in that species, compressed, the 

 ventral line and posterior half of dorsal line indicating a 

 fusiform lateral profile; caudal isthmus rather contracted. 

 Of the dorsal fin, only about 10 of the rays are preserved; 

 these slender and apparently soft, representing the anterior 

 part of the fin, which is anteriorly placed forward of the 

 midway point between beginnings of pectoral and anal fins, 



