NO. 2149. JAPANESE MACROVROID FISHES— GILBERT AND HUBBS. 183 

 18. ABYSSICOLA MACROCHIR (Gunthci). 



Macrurus macrochir Guntheb, Aim. Mag. Nat. Hist. (4), vol. 20, 1877, p. 



438 ; CliaUengcr Reports, vol. 22, Deep-Sea Fishes, 1887, p. 148, fig. 29, 



fig. B. (off Enoshima, 345 fathoms). 

 Abyssicola macrochir Goode and Bean, Oceanic Ichthyology, 1895, p. 417, 



pi. G, fig. 348.— Jordan and Snydee, Proc. U. S. Nat. Mus., vol. 23, 1900, 



p. 376 (off Tokyo; Albatross, 1896).— Jordan and Gilbert, Bull. U. S. 



Fish Comm., 1902 (1904), p. 607 (Sagami Bay, Albatross, 1900).— 



Franz, Abh. math. phys. kl. k. Bayer. Akad. der Wisseusch., vol. 4, 



Suppl. Bd. 1, 1910, p. 26. 



Owing to the incompleteness of the original description, five large 

 specimens are here described, all more than 500 mm. long. 



Width of body over pectoral bases 2.4 to 3 in length of head to 

 upper angle of opercle. Head with subvertical sides, its width 2.1 

 to 2.3 in its length. Vertical diameter of orbit 0.8 the horizontal 

 diameter, which is contained 3.3 to 3.7 times in head, an anterior 

 crescent-shaped portion scaled, the iris yellow, about one-third as 

 wide as pupil, membrane connecting iris with margin of orbit light 

 brown, the two colors sharply contrasted. Interorbital region con- 

 vex, not abruptly widened posteriorly, its width about equal to length 

 of orbit ; snout 3.25 to 3.6, conic and produced, the tip on a horizontal 

 through middle of pupil; terminal and lateral tubercles little 

 strengthened; median superior rostral ridge extending from tip of 

 snout to past front of orbit; lateral ridges well marked, but feebly 

 developed when compared to the ridge in Coelo7'hynchus, curved 

 downward below the orbit, and extending to the preopercular angle, 

 which is acutely produced backward, as in Coelorhynchus; occipital 

 ridges converging rather strongly from both ends toward the mid- 

 dle of their length, the least width between them 2.5 to 3 in the inter- 

 orbital width ; margin of subopercle sharply produced downward and 

 backward at its lower angle, opposite the end of the lower limb of the 

 opercle, as in the subgenera Oxtjmacrwrus and P arannacruTus of the 

 genus Coelorhynchus; interopercle and subopercle concealed behind 

 the preopercle. Barbel 5.5 to 7 in orbit. Mouth a little oblique, 

 large, extending from below nostrils to beyond orbit; maxillary 2.3 

 to 2.4 in head; teeth biserial in both jaws,^ crowded posteriorly in 



1 Teeth incorrectly described by Giinther as being " coarsely villiform in a narrow band 

 on the upper jaw, and in a single series in the lower." 



