78 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxiii. 



higher than wide, triangular, the middle of the proximal border raised 

 into a slight tubercle, the inferior edge sot with fine teeth. Ten arms; 

 the first brachial with short inner and long outer edge, the latter with 

 a row of small sharp spines; second brachial irregularl}' quadrate; 

 third brachial with a longer inner than outer edge; following brachials 

 to the eleventh oblong, the next few quadrate, then triangular. 



First pinnule 22 mm. in length, slender and flagellate, with 60 short 

 joints, wider than long, of which the terminal 25 or 30 bear a comb; 

 second pinnule 19 mm. long with about 40 joints, longer in proportion 

 than those of the first; third pinnule 16 mm. long, with 40 joints, and, 

 like the second, with a terminal comb. Following pinnules much 

 shorter, with fewer and longer joints and no comb; the pinnule on the 

 twenty-sixth brachial is 12 mm. long, slender, with 20 elongated joints. 



Color in life clear 3'ellow% cirri lighter. 



Type.— Cat. No. 22608, U.S.N.M.; from All>atross station No. 5092; 

 35^ 04' 50" north latitude, 139° 38' 18" east longitude (Uraga Straits, 

 entrance to Tokyo Gulf); 70 fathoms: October 26, 1906. 



14. ANTEDON HONDOENSIS, new species. 



Centro-dorsal hemispherical, bearing 30 to 50 cirri, the pole bare; 

 cirri 40 mm. long, with 35 to 40 joints, the distal half spinj", the 

 articulations rather prominent. 



First radials just visible; second radials very short; axillaries some- 

 what wider than high, with an open distal angle; ten arms 140 mm. 

 long; first brachial very short, the next triangular; following brachials 

 to about the tenth irregularly oblong, almost squarish, then becoming 

 quadrate as long as or longer than wide, the proportion remaining 

 about the same to the end of the arm. 



First two pinnules 24 mm. long, with short and broad joints, 

 becoming squarish after tlie first five or six; the basal five or six joints 

 bear high but short dentate dorsal processes, those on the diflferent 

 joints separated from each other bv deep notches; third pinnule 14 mm. 

 long, with rather elongated joints, resembling those of the second. 

 The fifth pinnule bears a small genital gland, which increases in size 

 on the sixth and following. The distal pinnules are long and slender, 

 with the edges of the joints set with small spines. 



This species is peculiar in having the position of the third syzygy 

 quite irregular, but usually on the twelfth, thirteenth, or fourteenth 

 brachials; the distal intersyzygial interval is two joints. 



Tyjye.—C^i. No. 22651, U.S.N.M.; from Alhatross station No. 5048; 

 38° 09' 24" north latitude, 141° 52' 30" east longitude (off Kinka San 

 Light, east coast of Nipon); 129 fathoms; October 10, 1906. 



