FISHES OF NEW YORK 645 



dorsal very large, three times bight of first, its longest rays 

 about as long as bead; anal high, half as high as second dorsal; 

 pectoral long, reaching past front of anal; ventrals well 

 developed; lateral line chainlike, conspicuous; skin perfectly 

 smooth. Length 3 inches. D. VII-18; A. 15; V. I, 3; pyloric 

 caeca seven. 



Pale olivaceous, with darker blotches; upper fins faintly 

 banded. 



Deep waters of the Great lakes; specimens have been taken 

 sparingly in Lakes Ontario and Michigan. The U. S. Fish Com- 

 mission obtained two examples at Nine Mile Point N. Y. and on 

 June 10, 1893, a single individual was collected at the same 

 place. The type of the species was taken by Spencer F. Baird 

 off Oswego, Lake Ontario. Dr William Stimpson obtained a 

 specimen in deep water of Lake Michigan which formed the 

 type of Dr Hoy's Triglopsis stimpsoni. 



The close relationship of Triglopsis and Oncocottus 



has been pointed out. Both young and adults of Oncocottus 



have been found occasionally in fresh water and the descent of 



the lake sculpin from a species of Oncocottus is highly 



probable. 



Genus HEMiTRiPTERrs Cuvier ' 



Body moderately elongate, scaleless, but the skin covered with 

 prickles and bony protuberances of various sizes and forms. 

 Head large, with numerous bony humps and ridges and fleshy 

 slips above; orbital rim much elevated, the interorbital space 

 deeply concave; a depressed area at the occiput, behind which 

 are 2 blunt spines on each side. Mouth very wide; jaws, vomer, 

 and palatines with broad bands of teeth; no slit behind last gill; 

 gill membranes broadly united, free from isthmus; preopercle 

 with stout, blunt spines; suborbital stay very strong, forming 

 a sharp ridge. Spinous dorsal much longer than the soft part, 

 of 16 to 18 spines, of which the first two are the highest, and 

 the fourth and fifth shorter than the succeeding ones, the fin 

 thus deeply emarginate; pectoral fins very broad, much procur- 

 reut; ventrals I, 3. Large fishes of singular appearance, inhabit- 

 ing the North Atlantic and Pacific. 



