NO. 1923. DESCRIPTIONS OF PACIFIC ALCYONARIA— NUTTING. 13 



CLAVULARIA EBURNEA Kiikenthal. 



Clavularia eburnea KUkenthal, Japanische Alcyonaceen, 1906, p. 14. 



A specimen secured by the U. S. Fisheries steamer Albatross is 

 attached to an alcyonarian stem. The polyps attain but 7 mm. in 

 length. Otherwise they agree with the type. 



Locality.— Station 4781; lat. 52° 14' 30" N.; long. 174° 13' 00" 

 E. ; 482 fathoms. 



Type-locality. — Sea of Japan, 600-1,200 meters. 



CLAVXJLARIA JAPONICA, new species. 

 Plate 1, figs. 1, la; plate 17, fig. 2. 



Specimens in fragments. The largest piece is a straight stem or 

 mother calyx, both ends lacking, 5.5 cm. long, from which a number 

 of irregularly placed secondary polyps arise. The main stem (or 

 polyp) shows the even vertical lines of Telesto arhorea, and is 1.7 mm. 

 in diameter throughout most of its length. The secondary calyces 

 are arranged in an irregular spiral, two in a vertical series being 

 separated by about 6 mm. They grow at an angle of nearly 45 

 degrees from the stem, are cyUndrical in form, 5 mm. in length and 

 1 .6 mm. in diameter. They narrow gradually toward the base, and 

 are truncate at their distal ends. The calycular surface is perfectly 

 smooth, without corrugations, either longitudinal or transverse, except 

 at distal end. Their walls are filled with vertical spindles covered 

 with complex verrucas which interlock with those of adjacent spicules, 

 forming an even mosaic which it is hard to separate. These are 

 embedded in the supei'ficial layer of the calyces. Within this is 

 another very thin and dehcate layer of more slender spindles. 



Spicules : These are modified spindles covered with short, variously 

 branched and tuberculate processes, as described above. 



Color: The entire specimen is very Ught yellowish, or cream color. 



Locality.— Stsition 4888; Nomo Zaki, N. 57° E., 16.5 miles; 71 

 fathoms (type). Station 4893; Ose Saki Light, N. 29° E., 5.5 miles; 

 106-95 fathoms. Station 4894; Ose Saki Light, N. 41° E., 5 miles; 95 

 fathoms. 



Type-specimen.^Cat. No. 30039, U.S.N.M. 



Family NEPHTHYID^ Verrill. 



Colony with a usually sterile stem or trunk which bears a dendritic 

 branching mass of polypiferous ramifications. Polyps not retractile. 



Genus LITHOPHYTUM Forsk^l. 



Nephthyidae in which the polyps are arranged in lappets, and are 

 without "Stutzbundeln" (Kiikenthal).^ 



1 Revision der Alcyonarien, 1903, p. 106. 



