148 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxiiii. 



Pacific Explorino- Expedition, under Capt. John Rodgers, U. S. Navy, 

 and are labeled "Kagoshinia Bay;" but there appears to be some 

 doubt as to whether they really were obtained there." 



24. ANTEDON BOWERSI '' new species. 



Centro-dorsal conical, bearing about 80 cirri in 15 closely set vertical 

 rows; the cirri are 13 mm. in length, with 30 joints, of which only 

 about the first 7 are longer than wide; the distal joints do not bear 

 spines. 



First radials just visible, in apposition all around; second radials 

 oblong, short, and wide, well separated; axiliaries pentagonal, wdder 

 than high. Ten arms, 40 mm. long, the first 5 brachials oblong, 

 then quadrate, becoming elongate distally; syzygies in the third, 

 eighth, and twelfth brachials, and distally at intervals of 1 or 2 joints. 



First pinnule (on second brachial) the largest, 4 mm. long, stiff, with 

 10 elongated joints; second pinnule (on fourth brachial) similar, but 

 shorter, and rather less stout; following pinnules more slender, and 

 increasing in length to about 6.5 mm., with 15 joints, the first 2 

 expanded and trapezoidal, the others elongated. 



Color in life brownish yellow, the skeleton and cirri nearly white. 



Type.— Cat No. 22611,^ U.S.N.M.; from A/hatros^ station No. 4931; 

 30'^ 58' 30" north latitude; 130- 32' 00" east longitude (off Kagoshima 

 Gulf); 152-103 fathoms; August 16, 1906. 



25. ANTEDON ABBOTTI,' new species. 



Centro-dorsal saucer-shaped, with 15 marginal cirri; theseare23 nun. 

 long, stout, with 40-45 short joints, the distal bearing a small, low 

 tubercle dorsally. 



First radials just visible, the distal corners free; second radials 

 about twice as wide as long, bearing distally on the lateral edges small 

 tubercules; axiliaries pentagonal, rather long, also with lateral 

 tubercles; distichals 2, like the outer radials, but first distichals in 

 apposition for almost their entire length; the distichals and the first 

 brachials have lateral tu])ercules; no further arm division. Twenty 

 arms 100 mm. long, the first S or 9 brachials ol)long, then quadrate, 

 soon becoming triangular, a])out as wide as high; a S3^z3'gy in the third 

 brachial; in the arms having an additional syzygy it is in the fort}'- 

 first (twice), forty-second, forty-fourth, forty-seventh, fifty-fourth, 

 and ninetieth brachials, respectively. 



The disk is very deeply incised. 



" Since the description of Aniedon tigrina was put in type I have examined sev- 

 eral specimens of the species taken in Sagami Bay in litOO, so I have no doubt that 

 the originals really did come from Japan. 



'' For the Hon. George M. Bowers, the Commissioner of Fish and Fisheries. 



'"For Dr. W. L. Abbott, to whom we are indebted for much of our knowledge 

 regarding the fauna of the Indo-Malayan region. 



