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



CLAVULARIA EBURNEA Kukenthal. 

 Clavularia ebumea 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.— StSition 4781; lat. 52° 14' 30" N.; long. 174° 13' 00" 

 E.; 482 fathoms. 



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



CLAVULARIA 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 hnes of Telesto arborea, 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 bemg 

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

 degrees from the stem, are cyhndrical 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 verrucse wliich interlock with those of adjacent spicules, 

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

 embedded in the superficial 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 entir^sj^edimen is very fight yeUowish, or cream color. 



ZocdH^.— Station 4888) Nomo Zaki, N. 57° E., 16.5 miles; 71 

 fathoms (type). '^BtStioir4893 ; Ose Said 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 NEPHTHYIDiE VerriU. 



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" (Kukenthal) .^ 



I Revision der Alcyonarien, 1903, p. 106. 



