146 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxni. 



Color in life light yellow, banded with white; cirri white. 



Type.— Cat No. 2263-1:, U.S.N.M.; from AlIxffroKs station, No. 4936; 

 30° 54' 40" north latitude, 130° 37' 30" east longitude (off Kagoshima 

 Gulf); 103 fathoms; August 16, 1906. 



21. ANTEDON RUBER, new species. 



Centro-dorsal low, bearing about 30 cirri in 1.5 vertical rows; cirri 

 11 mm. long with about 30 Joints, the first 8 longer than wide, the 

 others short, sharplj' carinate distally, but without distinct dorsal 

 spines. 



First radials narrow and crescentic, in apposition laterally ; second 

 radials about twice as wide as high, oblong; axillaries pentagonal, 

 nearly as high as wide. Ten arms 35 mm. long, the first five brachials 

 nearly oblong, then quadrate, becoming elongated toward the ends of 

 the arms; syzygies in the third, and seventh-tenth brachials, and 

 about every other joint distalh^ 



First pinnule on second brachial, 4 mm. long, with 13 joints, the 

 distal ends raised and serrate or spinous; the third brachial has no pin- 

 nule, the second, third, and fourth pinnules are of the same character 

 as the first, but gradually decrease in length; distal pinnules 6 mm. 

 long with about 12 joints, slighth' expanded at their junctions. 



The disk of this species is well plated in the areas between the arms; 

 the anal tube is about three times the diameter of the disk in length, 

 reaching to the fifteenth brachial. 



Color in life salmon red, the pinnules yellow, the cirri white. 



Type.— Ocit. No. 22643, U.S.N.M.; from .l/Z^a/mw station, No. 4894; 

 32° 33' 00" north latitude, 128° 32' 10" east longitude (Korean Straits); 

 95 fathoms; August 9, 1906. 



22. ANTEDON DIOMEDEiE, new species. 



Centro-dorsal small, rounded-conical (rarely long conical) bearing 

 30-40 slender cirri in 15 closel}' set vertical rows; cirri 30 mm. long, 

 slender, with about 40 joints, the basal half elongate, the distal short, 

 developing strong dorsal spines. 



First radials oblong, about twice as wide as high, in apposition all 

 around; second radials similar, but rather higher, and well separated; 

 axillaries about as wide as high, with an extravagantly elongated con- 

 ical tubercle on the junction of the second radial and axillar}-. Ten 

 arms, 70 mm. in length, with about 70 joints, at first irregularly 

 oblong, then quadrate, becoming elongate distally; there is another 

 long tubercle on the junction of the first two brachials. Syzygies 

 occur in the third, eighth, and twelfth brachials, and distally at inter- 

 vals of 3 joints. 



The third brachial bears no pinnule; the pinnule on the second 

 brachial is 7 mm. long, moderatel3^ stout, with about 12 joints, roughl}^ 



