12 "TERRA NOVA " EXPEDITION. 



< 'hionodraco, Lonnberg. 

 Body naked, elongate; three lateral lines without bony plates. Eye somewhat 

 behind middle of head; supraorbital ridges crenulated ; a rostral spine; teeth bi- or 

 tri- serial ; gill-rakers absent except for a few vestiges near the angles of the arches; 

 sub- and inter- operculum bearing a pair of spines just behind angle of praeoperculum. 

 Spinous dorsal well-developed, of six or seven spines ; pelvics comparatively short, of a 

 spine and five branched or bifid rays, the two outer the longest and enveloped in thick 

 skin. Skeleton essentially similar to that of Champsocephalus. Vertebrae (54. 



22. Chionodraco kathleenae, Regan (PL viii). 



Cltionodraco kathleenae, Regan, Ann. Mag. Nat. Hist. (8) xm, 1914, p. 13. 



Depth of body about 5 in the length, length of head 2| to ■'!. Diameter of eye 

 J to 6 in length of head, interorbital width :!.] to 4. Snout a little less than .', length 



of head. Rostral spii rect or retrorse. Maxillary extending to below anterior pari 



in- middle of eye. Dorsal vi-vti. 38-42, the two tins separated by an interspace. 

 Anal 34 -38. Pectoral | length of head or a little more, extending to above vent or 

 anterior rays of anal: pelvics ■-; to | length of head, extending to origin of anal or 

 beyond. Head and body with dark spots and liars; spinous dorsal blackish. 



Five specimens. 250 to 500 mm. in total length, from the Ross Sea, 74° 25' S., 

 L79 3' E., L58 fathoms, and McMurdo Sound, loo 200 fathoms. Also an example in 

 bad condition from off Granite Harbour, McMurdo Sound. 50 fathoms. 



C. hamatufi, Lonnberg, known from a specimen of 330 mm., has a larger eye (4.1 in 

 length of head, including opercular flap) and shorter pelvic tins, not reaching the vent. 



This species is named in honour of Lady Scott. 



( 'haenodraco, Regan. 



Cliaenodraco, Regan, Ann. Mag. Nat. Hist. (8) xm, 19] I, p. 1.".. 

 This genus differs from Chionodraco in having the supraorbital ridges not 

 crenulated, the gill-rakers developed as dentigerous prominences, and the pelvic fins 

 each formed of a spine and only four rays. 



23. Cliaenodraco wihoni, Regan (PI. ix. tie-. | ). 



Chaenodraco wihoni, Regan, Ann. Mag. Nat. Hist. (8) xm, 1914, p. 14. 



Depth of body (i in the length, length of head :'.,'.. Snout 2f, diameter of eye 4, 

 interorbital width 3| in length of head. Maxillary extending to below anterior } 

 "I' eye. Rostral spine antrorse. Dorsal vn, :'<[). the two tins continuous at the 

 base. Anal :',;;. Pectoral | length of head, extending to third or fourth ray of 

 anal; pelvics | length of head, extending to seventh ray of anal; rays bifid. A 

 large dark spot on the spinous dorsal. 



A single specimen, 250 mm. in total length, from McMurdo Sound. LOO to 200 

 fathoms. 



This species is named in memory of Dr. E. A. Wilson. 



