198 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



Tho specimen from station 4769 is young of 40 m,m. mantle-length. 

 It differs from the similar-sized specimens hitherto described in hav- 

 ing much longer arms and a head of more primitive structural type. 



The specimens from the stations 4760, 4763, 4765, 4793, 4775, 

 4805, are all quite young, measuring 4-14 mm. in mantle length. 

 Their external appearance recalls very much that of a cranchiid. 

 Their mantle is barrel-shaped, semitransparent and som.ewhat mem- 

 branous, shov/ing a part of the gladius along the mid-dorsal line of 

 mantle. The fins are minute, semicircular, attached to the extreme end 

 of the body. The head is always deeply contracted into the m.antle 

 cavity, more or less prismatic and bears projecting eyes. The 

 equipment of the arms consists of suckers placed in four rows ; that 

 of the tentacles is also composed of suckers, which extend nearly 

 the whole length of the tentacles, arranged biserially at the base, 

 quadriserially near the middle and octoserially at the extremity. 



53. GONATUS MAGISTER Berry. 



Gonatus fabricii (?) Berry, Bull. Bureau Fish., vol. 30, 1912, p. 310, pi. 52, figa. 1, 



2; pi. 53; pi. 54, figs. 1-4; pi. 55, figs. 1, 3-7. 

 Gonatus magister Berry, Proc. Acad. Nat. Sci. Philadelphia, 1913, p. 76. — 



Sasaki, Aniiot. Zool. Japon., vol. 9, 1916, p. 97. 



Station 4774 (near Bowers Bank, Beiing Sea; from Stomach of 

 Albatrossia 'pectoralis). One young female. Cat. No. 332907, 

 U.S.N.M. 



Station 4853 (near Cape Clonard, Korea). One female. Cat. 

 No. 332908, U.S.N.M. 



Station 4983 (off Yuwanai, Hokkaido). One male. Cat. No. 

 332909, U.S.N.M. 



These specim.ens agree well with Berry's description. The speci- 

 men from the station 4774 is a young of 82 mm. mantle length. It 

 has only four hooks on the fu'st arm, eight hooks on the second and 

 and also on the third. The suckers of the two median rows are 

 comparatively large, attaining twice (or more), the diameter of those 

 of the outer rows. 



GONATOP.SIS, new genus. 



The characters of this genus are the same as those given in the 

 description of the type species. 



Type of the Genus — Gonatopsis octopedatus. 



54. GONATOPSIS OCTOPEDATUS, new species. 



Plate 26, fig. 5. 



Station 5029 (near Cape Patience, Sakhalin). One specimen. 

 Cat. No. 332918, U.S.N.M. 



Consistency rather soft. Body elongated, thrice as long as wide, 

 the broadest part being one-third the length from the anterior end, 



