670 BULLETIN 82, UNITED STATES NATIONAL MUSEUM VOLUME 1 



The cirri arc XL-LX, tho peripheral about 20 mm. long, with 40 to 45 segments, 

 the apical about half as long with 25 to 30 segments. In the peripheral cirri the first 

 segment is short, the second is about as long as broad, tho third and fourth are about 

 half again as long as broad, and the fifth and following to about the fifteenth are about 

 twice as long as broad; after about tho fifteenth the segments gradually decrease in 

 length so that the last 15 or 20 are about as long as broad. The distal ends of the elon- 

 gate proximal segments project slightly on the dorsal side, and the dorsal surface of 

 the short distal segments is rather strongly convex. The opposing spine is prominent 

 and sharp, terminally situated, triangular, in length about equal to the width of the 

 penultimate segment. 



The radials are concealed by the centrodorsal. The IBr, are short and broad with 

 the lateral edges produced and in apposition and the anterior border strongly concave 

 in the median line. Tho IBr^ (a.xillaries) are about as broad as long with all the sides 

 somewhat concave and a rounded posterior projection incising the IBrj. 



The 10 arms are from 60 to 65 mm. in length. The first brachials are short, with 

 the distal border concave and the inner borders united in their pro.ximal half. The 

 second brachials are larger and triangular. The first syzygial pair (consisting of the 

 third and fourth brachials) is about as long as broad, rather longer interiorly than ex- 

 teriorly, the hypozygal being somewhat wedge-shaped. The following six brachials 

 are oblong, broader than long, those succeeding becoming triangular and about as long 

 as broad and elongate with somewhat swollen ends distally. 



Syzygies occur between brachials 3+4, 9 + 10, and 14 + 15, and distally at intervals 

 of 2 muscular articulations. 



The lower pinnules are badly broken in all the specimens. P, and Pg are exceed- 

 ingly slender and greatly elongated, with all but a few of the basal segments extremely 

 long. Pj also has much elongated segments. The pinnules following Pj and Pg are 

 much shorter and P3 and those succeeding bear gonads. The segments of P3 and the 

 pinnules following are not especially long. 



Localities. — ■Albatross station 3859; Hawaiian Islands; Pailolo Channel, between 

 Molokai and Maui; Mokuhoonild Islet bearing N. 18° E., 5.6 miles distant; 252-256 

 meters; temperature 15.67°-15.83° C; fine sand and mud; April 9, 1902 [A. H. Clark, 

 1908] (fragments, U.S.N.M., 36045). 



Albatross station 3865; Pailolo Channel; Mokubooniki Islet bearing S. 79° W., 6.9 

 miles distant; 468-517 meters; temperature 7.11°-7.22° C; fine volcanic sand and 

 rock; April 10, 1902 [A. H. Clark, 1908] (21, U.S.N.M., 36031; L.S.). 



Albatross station 3883; Pailolo Channel; Mokubooniki Islet bearing S. 80°30' W., 

 7.8 miles distant; 506-519 meters; temperature 7.33° C; globigerina ooze; April 16, 

 1902 [A. H. Clark, 1908] (10, U.S.N.M., 35881). 



Albatross station 3910; off the southern coast of Oahu, near Honolulu; Diamond 

 Head Light bearing N. 7° E., 12.5 miles distant; 508-616 meters; temperature 6.50° C; 

 fine gray sand and mud; May 5, 1902 [A. H. Clark, 1908] (5, U.S.N.M.). 



Albatross station 3925; near Honolulu; Diamond Head Light bearing N. 29°30' E., 

 10.2 miles distant; 590-546 meters; temperature 6.50° C; fine gray sand, mud and 

 roclvs; May 7, 1902 [A. H. Clark, 1908] (2, U.S.N. M., 36139). Type locality. 



Albatross station 4105; off Molokai; Lae-o Ka Laau Light, Molokai, bearing S. 

 45°30' E., 10.6 miles distant; 574-048 meters; temperature 6.56° C; fine coral sand 

 and foraminifera; July 24, 1902 [A. H. Clark, 1908] (6, U.S.N.M., 30048). 



