(■(ciTdins. 



lo'J 



nlsd hccn taken in Ti'oikIIiJchi I'jord, at (lc|itlis varvin,i:' es])e('iallv tIk 

 from loo to 200 fatlionis. l)ui'in,L!' Noijdknskiold'.s ' sci'vicc to tlii 

 l",\lic(lition of 1883 a male 157 nun. in Icniilli, with 

 a, large genital papilla, was taken on the (ilji of Sc])- 

 Icnil)('i-, off the east coast of (ireenland, li.')° :',{)' X., on 

 a clayey bottom and at a dcplli of 1 .'iO I'atlioms. 



As CoLLETT has remarked, the hroail pectoi'al tins, 

 with their ra\s, wliich are thick ami IVee at lhe tii)s, 



lower ones, are witlioul doubt of groat 

 llsh. lly tlieir help it digs up the soft 

 clay of the bottom and tloundei's along, preying on the 

 worms oi- small mollusks and crustaceans which live in 

 its company at a depth of 100 fathoms or still more. 

 We have no fui'ther knowledge of its niannei- of life; 

 and it can be of special interest to us only in a syste- 

 matical and zoogeographical respect. 



Genus GYMNOCANTHUS. 



7'ini i/isfiiicf (hirsdl fiiis. .S'/.v'// iritlinKt s(((Ies. J/cail of nrrnigc size (less than ' ., of fJic hiif/fli nf the l/adfj). 

 Foi(i\ pointed, pi-copcrcKtar spines, tlie njipennost of n-lileh Is famished with from 1 to :'> lateral spines directed 

 npa-(irds. Palatine hones and romer toothless. Branehiosfegal memhranes milted to the Isthmas throae/hout the 

 t/reater part of Its len(/th, lint their inarf/ln eontlnned In a fi'ce dermal fold orer Its surface. Xo f/lll-sllt hehlnd 

 the fourth hranchhd arch. liase of the an(d fin lonf/er than that of the serinid dorsal. Baijs In the amd fin 



less than :J(). 



This genus is as truly Arctic as the former, if not 

 more so, but it belongs to the littoral fauna. It was 

 tirst formed by Swainson" in 1839, but from Kuoyer'', 

 in 1845, it received a new name, PJiohefor, Ijy -which 

 it has been lietter known since that time. Thouffh its 



most remarkable character consists in the aljseiice of 

 teeth on the palatine bones and the vomei-, tlie two spe- 

 cies Avhich belong to it, may be recognised most easily, 

 within the Scandinavian fauna, by the singular form 

 of the uppermost preopercniar spine. 



■' Xat. Hist. Fisli. Amph. L'ept., II. |i|.. IS I 



'' Xatiirli. Tidskr., i-Acn Rivkke, l:ste Iliiici. p. ■JO;-', 



11,. 1 -271. 



