33 



and with only prominent downwardly oblique ridges composing the sculpture ; the scales on 

 either side of the median ventral line are similar to these small ones in size and sculpture. 



Canobius modulus has about the same length as C. ramsayi, Traquair, but is not so deep. 

 The scales are differently sculptured, and in this respect the species is distinct from all other 

 described ones of the genus. The specimen from Horton, N.S., is slightly smaller than the type 

 specimen from Beliveau, N.B. 



Measurements. 



MM. 



Length of type specimen, plate XI, fig. 2 59 



Depth in advance of dorsal fin 15 



Length of head, including opercular apparatus 13 



Flank scales, exposed surface, vertically, four in a space of 45 



Flank scales, exposed surface, longitudinally, four in a space of 3' 75 



Length of specimen from Horton, plate XI, fig. 3 55 



Depth midway between pectoral and anal fins 14 



Depth in front of dorsal fin 12'5 



Dorsal ridge scales, in advance of dorsal fin, three in a spare of 5 5 



9981—5 



