NATURAL SCIENCES OF PHILADELPHIA. 343 



face. The teeth above described are on this fish. There are six iu 

 three mm. 



M. 



Widtli at shields 0.15 



" at middle muzzle 030 



Length of head 045 



Prof. Newberry's collection. 



PEPLOKHINA, Cope. 



Established on a species similar to those of the last genus, but 

 with a peculiar sculpture of the scales, which consists of raised 

 points or small tubercles. There is a lateral line of tubes which I 

 cannot find in Conchiopsis. An angular bony shield is present 

 behind the gular scutum. There are well ossified ribs, but the 

 structure of the fins cannot be made out at present. 



PEPLOKHINA ANTHRACINA, Cope. 



Scales large, well imbricated ; each one is .01 m. in elevation, 

 and three enter .02 longitudinally. The gular and other scuta are 

 smooth, except a band of shallow grooves round the margin. 



M. 



Length of gular scutum 021 



" scute behind it 014 



From Prof. Newberry's collection. 



