74 DISCOVERY REPORTS 



Genus CHAENICHTHYS 

 Channichthys, Richardson, 1844, Ann. Mag. Nat. Hist., xiii (June), p. 461. Type Channichthys 



rhifiocerattis, Richardson. 

 Chaenkthys, Richardson, 1844, Zool. 'Erebus' and ' Terror', (Fish.), P- 12 [emend, pro Chan- 

 nichthys). 

 Chaenichthys, GiJnther, i860, Cat. Fish., 11, p. 249; Regan, 1913, Trans. R. Soc. Edinburgh, 

 XLix, p. 286 (emend, pro Chaenicthys). 

 Related to Chompsocephaliis, but there is a rostral spine, the teeth are in broader 

 bands, and the lateral line is provided with bony plates. Gill-rakers short, dentigerous. 

 Dorsal fins well separated. 

 Two species. 

 Kerguelen. 



Chaenichthys rhinoceratus, Richardson. 



Channichthys rhinoceratus, Richardson, 1844, Ann. Mag. Nat. Hist., xin (June), p. 461. 

 Chaenicthys rhinoceratus, Richardson, 1844, Zool. 'Erebus' and 'Terror', (Fish.), p. 12, pi. vi, 



figs. '1-3; Gill, 1876, Bull. U.S. Nat. Mus., in, p. 41. 

 Chaenichthys rhinoceratus (part), Giinther, i860. Cat. Fish., 11, p. 249. 

 Chaemethvs rhitioceratus, Studer, 1879, Arch. Naturg., xlv (i), p. 131. 

 Chaenichthys rhinoceratus, Giinther, 1880, Shore Fish. 'Challenger', p. i6; Pappenheim, 1912, 



Deutsche Siidpol.-Exped., xiii, Zool. v, p. 173; Regan, 191 3, Trans. R. Soc. Edinburgh, 



XLix, p. 286; Monod and DoUfus, 1932, Bull. Soc. Zool. Fr., lvii, p. 74; Norman, 1937, 



Rep. B.A.N.Z. Antarct. Res. Exped., Ser. B, i, p. 65. 



Fig. 47. Chaenichthys rhinoceratus. x J. 



Depth of body 5I to more than 7 in the length, length of head 2| to nearly 2f. 

 Diameter of eye 5J to 7^, interorbital width 5 to b\ in length of head. Maxillary ex- 

 tending to below middle of eye or beyond in adults. Head moderately or rather strongly 

 rugose, the supraorbital edges usually not much raised. 69 to 84 plates in upper lateral 

 line; a'few plates on middle of side. Dorsal VII-VIII, 32-34; second and third spines 

 longest, thence decreasing rapidly in length. Anal 30-33. Pectoral with 19 to 22 rays, 

 extending to above vent or origin of anal; pelvics as long as or a little longer than 

 pectorals, not reaching vent. Caudal rounded. Brownish, with darker spots and reti- 

 culations ; spinous dorsal blackish ; other fins pale or dusky. 



