ZOOLOGY. 
CCXlll 
Zool. Dan. v. 2, p. 22, pi. 57, but differs in the following particulars : 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 projects 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 the 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 mouths of the small rivulets by which the 
snow on melting found its way to the sea ; the largest individual did not equal 
2 d 2 
