540 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The radials are just visible beyond the edge of the centrodorsal, extending well 

 up in the angles of the calyx. They are slightly separated distally, so that the bases 

 of the IBri are rather widely separated. The IBr, are short, with a convex proximal 

 border and slightly converging sides. They are about three times as broad as the 

 median length. The IBr 2 (axillaries) are broadly pentagonal, twice as broad as long. 

 The anterior angle is sharp, the anterior sides are concave, and the lateral edges are 

 about as long as those of the IBr^ with which they make an obtuse angle. 



The 17 arms are 120 mm. long. There are 3 IIBr and 4 IIIBr series present, all of 

 which are 4 (3 + 4). Of the IIIBr series, 3 are internal and the fourth is external at 

 the side of one of the preceding. The division series are narrow, so that a large amount 

 of perisome is visible in dorsal view. This is protected by numerous irregular calca- 

 reous plates. 



Pj is 20 mm. long, stout basally, and tapering rapidly in the proximal third, but 

 more gradually from that point onward. It is composed of 38 segments. The ter- 

 minal comb is borne on the last 14 segments and is composed of low rounded teeth 

 which become obsolete on the 3 terminal segments. P 2 is much shorter than P! and 

 proportionately less stout, though similar. It possesses 28 segments and is 10 mm. 

 long. The comb consists of 9 teeth, of which the first 3 are small. There are no teeth 

 on the 3 or 4 terminal segments. P 3 is small and slender, 7 mm. long, with 23 seg- 

 ments. P 4 is slightly smaller and more slender than P 3 , 6 mm. long, with only a 

 rudimentary comb. P 6 is 5.5 mm. long and is composed of 17 segments; it does not 

 bear a comb. It is very slightly stouter than the 2 preceding pinnules and tapers 

 more evenly to the very delicate tip. The following pinnules are similar. The dis- 

 tal pinnules are very slender, 8 mm. long, with 17 segments. 



The color is grayish brown, the cirri yellowish. 



Of the specimens from Port Galera, Mindoro, one has about 120 arms which 

 are about 170 mm. long. Another has about 100 arms, and the cirri composed of 

 27-29 segments and from 40 to 45 mm. in length. A third has about 85 arms 205 mm. 

 long. A fourth has about 85 arms 160 mm. long. Another has 80 arms about 185 

 mm. long; a single cirrus with 31 segments remains. 



The specimen from the Pelew Islands has about 120 arms which are 150 mm. 

 in length. The cirri are XXXV, 30, 40 mm. long, large and robust, and are placed 

 on a large convex centrodorsal with a deeply concave dorsal pole. 



Of the 2 specimens from Ekalin, St. Matthias Island, one is medium sized, 

 with about 70 arms. The dorsal surface of the division series and arms is finely gran- 

 ular and very rough. The disk is 35 mm. in diameter. The other is smaller, with 

 48 arms about 115 mm. long. One of the IIBr series is 2 and bears externally a single 

 IIIBr 2 series. 



Herr Schode's specimens from St. Matthias Island are all rather small, with about 

 60 arms. In one of them several of the division series are 2 instead of the usual 4 

 (3 + 4). The distal cirrus segments are laterally flattened and are about twice as 

 broad as long. They are perfectly smooth dorsally. 



In the specimen from Uvea, as described by Bolsche, the diameter of the centro- 

 dorsal reaches 12 mm. The dorsal pole is concave and has a diameter of 6 mm. 



The cirri are about L, 30. At the base the cirri are circular in cross section, but 

 toward the end the cross section becomes elliptical. In the middle of the fully devel- 



