184 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



this to tlie fourteenth pair are the largest, which are situated near the 

 umbrella edge; then they diminish gradually toward the extremity. 



Right third arm prominently hectocotylizod, robust, much shorter 

 and thicker than the left third, terminating quite abruptly. Terminal 

 organ short, thick, a little flattened dorso-ventrally, narrowing some- 

 what distad to a quite blunt extremity. Copulatory groove smooth, 

 widely excavated. Suckers on the normal part 22 pairs. 



Branchial leaflets only 15 in each gill. Penis cylindrical, 20 mm. 

 by 4 mm. Spermatophores 48 mm. long, 1.4 mm. thick at aboral 

 part. 



Total length 184 mm. ; ventral length of mantle 39 mm. 



Type.— Cut. No. 332971, U.S.N.M. 



Genus SCAEURGUS Troschel. 



25. SCAEURGUS PATAGIATUS Berry. 



Scaeurgus patagiatus Berry, Proc. Acad. Nat. Sci. Philadelphia, 1913, p. 564. — 

 Berry, Hawaiian Cephalopoda, 1914, p. 305, pi. 47, figs. 2, 3; pi. 48, fig. 1; text 

 fig. 19. 



Station 4924 (south of Kyushu). One male. Cat. No. 332954, 

 U.S.N.M. 



The specimen differs from Berry's description in having neither the 

 ridge-like fold above the body nor the vertical papilla behind it. 

 Furthermore there is only one cirrus above each eye instead of two as 

 described by Borrj^; the umbrella is broadest at the lateral parts not 

 at the dorsal. 



Suborder DECAPODA Leach 



Division MYOPSIDA d'Orbginy. 



Family LOLIGINIDAE d'Orbigny. 



Genus LOLIGO Schneider. 



27. LOLIGO EDULIS Hoyle. 



Loligo tdulis Hoyle, Challenger Cephalopoda, 1886, p. 152, pi. 23. 

 Station 4963 (Kii-suido). Two young. Cat. No. 332902, U.S.N.M. 



28. LOLIGO JAPONICA Steenstnip. 



Loligo japonica Hoyle, Challenger Cephalopoda, 1886, p. 157, pi. 24, figs. 7-15. 



Station Hakodate. Two females. Cat. No. 332904, U.S.N.M. 

 Hakodate market. One female and seven males. Cat. No. 332903, 



U.S.N.M. 



29. LOLIGO BLEEKERI Keferstein. 



Loligo bleekeri Keferstein, Bronu's Klass. und Ordn. d. Thierreichea, 1866, p. 

 1402, pi. 122, figs. 9, 10; pi. 127, fig. 14.— Appellof, Japanska Cephalopoder, 1886. 

 p. 31. pi. 1, figs. 7-10. 



Station 4872 (east of Tsushima). Thirty-one young. Cat. No. 

 332905, U.S.N.M. 



