papyraceus, Hymenocephalus Jordan [D. S.] & Gilbert [C. H.] in Jordan & Starks 1904:614, Fig. [Bulletin of the U. S. Fish Commission v. 22 [1902]; ref. 2526] Sagami Bay, Japan, depth 120-265 fathoms. Holotype (unique): USNM 50935. Types: Shinohara & Williams 2006:551 [ref. 31656]. •Valid as Hymenocephalus papyraceus Jordan & Gilbert 1904 -- (Okamura in Masuda et al. 1984:94 [ref. 6441] as papiraceus, Iwamoto in Cohen et al. 1990:230 [ref. 18936], Sazonov 1993:446 [ref. 22801], Nakabo 2000:419 [ref. 25086] as papiraceus, Nakabo 2002:419 [ref. 26001], Schwarzhans 2014:37 [ref. 33586], Nakayama et al. 2015:504? [ref. 33724], Iwamoto et al. 2015:76 [ref. 35408], Nakayama 2020:215 [ref. 37888]). Current status: Valid as Hymenocephalus papyraceus Jordan & Gilbert 1904. Macrouridae. Distribution: Western North Pacific: Japan and East China Sea, Taiwan. Habitat: marine.