ZOOLOGY. 
CCXlll 
ZooL Dan. v. 2, p. 22, pi. 57, but differs in the following paiticulars : the dorsal 
fin is united to the anal and caudal ; the pectoral fin is not orbicular, as its length 
exceeds twice its breadth ; the number of rays 15. The teeth, though small, are 
sufficiently conspicuous to the naked eye ; the colour a yellowish ground, 
lighter under the belly, having eleven large saddle-shaped brown markings 
across the back ; the middle of these markings being much lighter than their 
edges, the whole back and sides have a marbled appearance ; the yellowish 
ground, when viewed in a microscope, is thickly sprinkled with minute black 
spots. No scales were detected by the microscope, but they may possibly have 
been removed with the sand which had adhered to the mucous coating of the 
skin, and which was washed off. Length seven inches. The upper jaw pro- 
jects rather more than the plate of the B. Viviparus in the Zool. Dan. Ventral 
fins of two spines enclosed in a lax skin. This species is distinguished from 
the B. Lumpenus, by the union of the dorsal and caudal fins, and by the upper 
jaw being considerably longer than the lower; and from the B. Ocellatus, 
Mem. de Peters, t. 3, pi. 8, f. 2, by the ventral fins which are wanting in the 
Ocellatus, as well as by the absence of the spots on the dorsal fin of the 
latter. 
CoTTUS Quadricornis. 
Two individuals of this species, from five to six inches long, were the only 
produce of the Seine at Melville Island. They agreed in all respects with the 
description and plate of the C, Quadricornis in ihe Ichthyology of Block, vol. 3, 
page 146, plate 108. 
CoTTUS Polaris. 
C. imberbis, capite spinis duabus, operculis spinis quatuor, armatis. 
A species of Cottus, similar in its habits to the C. Gobio, was very 
abundant on the shores of North Georgia, inhabiting the pools of water left 
by the ebbing of the tide, and the jjiorfths of the small rivulets by which the 
snow on melting found its way to^e sea ; the largest individual did not equal 
2 d 2 
