312 BULLETIN 82, UNITED STATES NATIONAL MUSEUM VOLUME 1 



Specimen 1. Centrodorsal hemispherical, 2 mm. in height, the dorsal pole slightly 

 flattened, measuring 3 mm. across. Cirri about L, with 28 to 46 segments, measuring 13 

 to 40 mm. and arranged in alternating whorls. There are no dorsal or opposing spines. 

 The longest segments are usually a quarter again as long as wide except for the small 

 dorsal cirri, which may have segments as much as twice as long as wide. 



The radials are visible in the corners. The IBr 2 (axillaries) have a moderate 

 synarthrial tubercle and almost no backward projection. The arms are about 95 mm. 

 long. The arm bases are somewhat knobby but otherwise smooth, only the middle 

 and distal brachials having spinous distal borders. Syzygies occur at brachials 3 + 4, 

 9 + 10, 13+14, or 14+15, or 15 + 16, or 17 + 18, and distally with an interval of 3-4 

 muscular articulations. 



P: has 66 segments and measures about 27 mm. It is slender. The second to the 

 sixth segments have truncated and indistinctly spinous prominences on the aboral side. 

 The distal segments are one quarter again as long as wide and are toothed. 



P 2 has about 55 segments and measures 21 mm. P 4 has 46 segments and is about 

 20 mm. long. P 5 is without a comb. P 7 has 19 segments and measures 12 mm. The 

 distal pinnules have 22 segments and measure 12 mm. Their third and following 

 segments are very slender and twice as long as wide. 



The disk measures 8 mm. It has no granules. The anal cone measures 6 mm. 



Specimen 2. The cirri have 26 to 40 segments and measure 14 to 40 mm. There 

 is a median carination and indistinct dorsal spines. The longest segments are half 

 again as long as wide. An opposing spine is present. The arms are 85 mm. long. 

 The third syzygy is between brachials 14 + 15. 15 + 16, or 16 + 17. P! has 50 segments 

 and measures about 20 mm. P 2 has about 45 segments and is 17 mm. long. P 3 has 

 37 segments and measures 15 mm. P 4 has about 20 segments and measures 8 mm.; it 

 lacks a comb. The distal pinnules have 22 segments and are 11 mm. long. 



Gislen comments that these specimens are adolescents of Florometra mariae, differ- 

 ing only from the adults in the smoother arm bases and smaller size. They approach 

 Heliometra in having the smoother arm bases but are sharply distinguished from it by, 

 among other things, the lack of a synarthrial backward projection on the axillaries and 

 by the very slender pinnules of which the proximal bear distinct teeth on the distal 

 pinnulars. 



He says also that they bear some resemblance to Cyclometra (now Boleometra) clio, 

 which is here considered as belonging to the subfamily Bathymetrinae. Specimen two 

 apparently differs mainly from the smaller type specimen of B. clio in having longer 

 cirri composed of more segments and longer proximal pinnules also composed of more 

 segments. However, B. clio has the axillaries rhombic rather than triangular. 



Localities. Albatross station 5047; off Kinka San, eastern coast of Japan; Kinka 

 San Light bearing N. 69.5 W., 11.6 miles distant (lat. 3812'50" N., long. 14149'15" 

 E.); 195 meters; temperature 9.78 C.; dark gray sand, broken shells and pebbles; 

 October 10, 1906 [A. H. Clark, 1907, 1915] (2, U.S.N.M., 22651, 35750). 



Albatross station 5048; off Kinka San; Kinka San Light bearing N. 61 W., 15.4 

 miles distant (lat. 3809'24" N., long. 14152'30" E.); 236 meters; temperature 

 4.83 C.; dark gray sand and broken shells; October 10, 1906 [A. H. Clark, 1907, 1915] 

 (8, U.S.N.M., 35715). 



Albatross station 5092; Uraga Strait, entrance to Tokyo Gulf; Joga Shima Light 

 bearing N. 19 W., 3.5 miles distant Gat. 3504'50" N., long. 13938'18" E.); 128 



