746 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



396.— CYCL,OPTEBUS LiuutEua. 

 (Lumpus Cuvier.) 



(Artedi; LinnsBiis, Syst. Nat.: type Ci/elojjterus lumpus L.) 



Spinous dorsal present, sometimes disappearing with age; skin thick, 

 armed with series of bony tubercles; other characters of the genus 

 included above. (xwxAo-, circular; Ttrepd^, fin; from the circular ventral 

 disk.) 



a. Dorsal spines not disappearing with age; gill-opening a small slit on level of eye; 

 ventral disk large. {Eumkrotremus* Gill.) 



1144. C. spino:§>us Miiller. 



Color olivaceous, the skin between the plates thickly punctate. Body 

 orbicular, cuboid anteriorly; base of spinous dorsal and body behind 

 vent abruptly compressed ; teeth in narrow bands; gill-openings on a 

 level with eye, slightly narrower than orbit. Spinous dorsal not hidden, 

 covered with rough tubercles, similar to those on body, but smaller; 

 width of ventral disk slightly less than its length, and somewhat less 

 than length of head. Body covered with irregular roundish conical 

 plates, varying much in size, some of the larger with a central point, 

 turned backward; all the plates with small tubercles and slender flex- 

 ible prickles; small plates along bases of all the fins; a series of G large 

 l)lates extending backward from above eye to opposite the interval be- 

 tween dorsals; a series of 5 on each side of middle of interocular space 

 from snout to nape, these increasing much in size posteriorly; a series 

 of 3 along opercular margin; along base of spinous dorsal, a series of 

 4, not connected with that of interorbital space; a single large jjlate on 

 each side of the interval between dorsals; two longitudinal series of 4 

 large plates each, beginning above base of pectorals and behind gill- 

 siits, terminating under the space between dorsals; the largest plate on 

 body is immediately behind axil of pectoral ; a smaller one below it, and 

 two others between it and origin of anal; two series of smaller plates 

 below eye; many small plates interposed between the series of large 

 ones; very small plates on under side of head and middle of tail; no 

 plates between ventral disk and vent; none in axil of pectorals. Ilead 

 3; depth nearly 2. D. VIl-1 1; A. 10; C. 10. Alaska to Iceland, south 



*Gill, Proc. Acad. Nat. Sci. Pliila. 1864, 190: type Cyclopterus spinosus Mlill. 

 (Ev/iiH/jo?, very small; rp^/ux,. aperture, from tlie small gill-opouings.) 



