252 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



gradually become obsolete after the proximal quarter of the arms, but may be traced 

 as far as the beginning of the distal half. Two of the IIBr series are 4(3+4) and two 

 are 2. There are no IIIBr series present. 



The 14 arms are 205 mm. long. 



Another specimen from Albatross station 5523 has 20 arms 195 mm. long. Of the 

 ten IIBr series nine are 4(3+4) and one is 2. The cirri are XXX, 17-21 (usually 18-19) . 

 The tubercles on the division series and lower brachials are not quite so prominent as 

 in the type specimen. 



Of the four specimens from Albatross station 5510 one has 21 arms 130 mm. long and 

 the cirri 20-25 mm. long; another has 29 arms with the IIIBr series 2(1 + 2), internally 

 developed; a third has 24 arms. 



The single fine specimen from Albatross station 5536 has 23 arms 160 mm. long and 

 the cirri XXVI, 19-24, 23-25 mm. long; all the IIBr series are 4(3+4) ; the three IIIBr 

 series are 2(1+2), developed internally. The genital pinnules bear eggs. 



From Albatross station 5348 there are 22 medium sized or small specimens with 

 19-22 arms which in the larger are from 125 to 135 mm. long. 



Of the three specimens from Albatross station 5282 one has 25 arms 150 mm. long; 

 another has 30 arms 140 mm. long, one IIBr series dividing both internally and exter- 

 nally and another not dividing at all; and the third has 33 arms 110 mm. long, three 

 of the internally developed IIIBr series bearing on the innermost side IVBr 2(1+2) 

 series. 



The specimen from Menado Bay, Celebes, is small with apparently 20 arms; of 

 the ten IIBr series nine are 4(3+4) and one is 2. 



The specimen from the Danish Expedition to the Kei Islands station 51 has 19 

 arms 130 mm. long; of the IIBr series five are 4(3+4) and four are 2. 



The specimen from the Danish Expedition to the Kei Islands station 52 has 20 

 arms 140 mm. long. Of the IIBr series five are 4(3 + 4) and five are 2. The cirri 

 have 20-26 (usually 20-23) segments. 



Localities. Albatross station 5282; China Sea in the vicinity of southern Luzon; 

 Malavatuan Island (N.) bearing S. 84 W., 6.20 miles distant (lat. 1353'00" N., long. 

 12026'45" E.); 453 meters; bottom temperature 8.55 C.; dark gray sand; July 18, 

 1908 [A. H. Clark, 1911] (2, U.S.N.M., 35720). 



Albatross station 5116; Verde Island Passage; Sombrero Island bearing N. 69 E., 

 2.50 miles distant (lat. 1341'00" N., long. 12047'05" E.); 366 meters; bottom 

 temperature 10.11 C.; January 20, 1908 [A. H. Clark, 1908] (14, U.S.N.M., 35721). 



Albatross station 5123; east coast of Mindoro; Malabrigo Light bearing N. 44 W., 

 32.50 miles distant (lat. 1212'45" N., long. 12138'45" E.); 517 meters; green mud; 

 February 2, 1908 [A. H. Clark, 1908, 1909, 1911, 1912] (1, U.S.N.M., 25448 [type]). 



Albatross station 5348; Palawan Passage; Point Tabonan bearing S. 89 E., 33.5 

 miles distant (lat. 1057'45" N., long. 11838'15" E.); 685 meters; bottom tempera- 

 ture 13.44 C.; coral sand; December 27, 1908 [A. H. Clark, 1911] (20, U.S.N.M., 

 35681). 



Albatross station 5198; in the vicinity of western Bohol; Baliscasag Island bearing 

 S. 6 E., 10.25 miles distant (lat. 940'50" N., long. 12339'45" E.); 402 meters; 

 bottom temperature 12.17 C.; green mud; April 9, 1908 [A. H. Clark, 1908] (1, 

 U.S.N.M., 35719). 



