ANTARCTIC FISHES OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 367 



II. Two lateral lines; outer rays of pelvic fins longest; dorsal fins separated by 

 an interspace ; lateral line without bony plates . 5. Chaenoc&phalus. 

 III. Three lateral lines. 



Pelvic fins of moderate length .... .6. Chionodraco. 



Pelvic fins elongate, the rays simple ..... 7. Cryodraco. 



1. Clictmpsoceplialus, Gill. 1861. 

 Pro.: Acad. Phi/ad., p. 509. 



Body naked, elongate ; 2 lateral lines, without bony plates. Eye nearly in 

 middle of length of head ; no spine on snout. Jaws with rather narrow bands of small 

 sharp teeth, forming only 2 series laterally ; lower jaw not projecting. Gill-rakers 

 short, but well developed on all the branchial arches, dentigerous, about 20 on lower 

 part of anterior arch. Spinous dorsal fin well developed, its base less than ^ that of 

 the soft dorsal, with which it is almost continuous ; pelvics comparatively short, with 

 the rays normally branched, the middle ones the longest. 



Patagonia ; Magellan Straits ; South Georgia. 



(1) Cliampsoceplialus esox. (PI. X. fig. 1.) 



Ghxnichthys esox, Giint.h., Ann. Mag. Xat. Hi.<t. (3), vii., 1861, p. 89. 



Depth of body 7 to 8 in the length, length of head 3 to 85. Snout a little longer 

 than postorbital part of head. Diameter of eye 7 in the length of head, interorbital 

 width 4 to 5. Supraorbital edges not raised. Maxillary extending to below anterior 

 part or middle of eye. Uppermost opercular spine shorter than and quite distinct from 

 the middle one. Dorsal (IX) X, 33-36. Anal 32-35. 



Body with dark cross-bars. 



Patagonia ; Magellan Straits. 



Here described from five specimens, 200 to 300 mm. in total length, including the 

 type of the species. 



(2) Champsocepludus gunnari. (PL X. fig. 2.) 



Lonnberg, Swedish South Polar />/"'/., Flali., p. 37 (1905). 



Depth of body 6 in the length, length of head 3|. Snout as long as postorbital 

 part of head. Diameter of eye 5 in the length of head, interorbital width 3. 

 Supraorbital edges not raised. Maxillary extending to below anterior ^ of eye. 

 Uppermost and middle opercular spines only free distally, appearing as a single bifid 

 spine. Dorsal IX (X), 37-40. Anal 36-38. Plumbeous, with some broad darker 

 cross-bars. 



South Georgia. 



Here described from a specimen of 420 mm. 



(ROY. soc. EDIN. TKANS., VOL. XLIX., 285.) 



