28 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



lanceolate, slender, opaque. There are five or six polyps to the leaf, 

 one of which forms the leaf termination. Calyces slender, obconical, 

 separate, sometimes 4 mm. long to the end of the teeth, with eight very 

 slender acute teeth or spines projecting 2 mm. beyond the margin. 



Zooids: The ventral zooids are very numerous on ventral surface, 

 except on the middle band. Lateral zooids in rows of four or sLx 

 between leaf bases, really dorsal in position. 



Spicules : These are long sharp needles, reddish- or yellowish-white 

 in color. 



Color: The colony is grayish-yellow, tinged on leaves with red. 



Locality. Station 4766; Koniuji Island, S. 22.5° W., 27 miles; 

 1,766 fathoms. 



General distribution. — Greatest depth reported, 1255 fathoms. New 

 England coasts. Common on eastern shores of the Atlantic and in the 

 North Sea. Calif ornian coast (Nutting). 



PENNATULA SULCATA Kblliker. 



Pennatula sulcata Kolliker, Challenger Report, the Pennatulidse, 1880, p. 8. 

 fPennatula Jimbriata Herklots, teste H. Balss, Zool. Anzeiger, vol. 34, 1909, 

 p. 428. 



Several specimens in the collection agree quite closely with Kolli- 

 ker's description of this species. In some of these there is a more 

 abrupt swelling on the upper part of the stem than is figured by that 

 writer, and in some the rachis is not twice as long as the stem. 



The length of a large specimen is 12.5 cm. The longest pinna is 

 2.3 cm. in length and its width is 7 mm. There are 20 to 24 polyps 

 on the fully developed leaves, and the cal3^ces are armed with eight 

 points composed of bundles of spicules. The polyps have rather long 

 tentacles, for this genus; and these are deeply fringed, and bear a few 

 very delicate spicules on their dorsal surfaces. 



The spicules are colorless, stout needles, borne on the rachis, pinnae, 

 and calyces. The proximal portion of the stem has the surface filled 

 with minute oval disks. 



The zooids are very numerous, there being two very broad, turgid 

 bands on the ventral surface, and these bands are divided by a deep 

 groove. There are also narrow bands of zooids between the bases of 

 the leaves. 



Localities. — Station 4934; Sata Misaki Light, N. 77.5° E., 7 miles; 

 152-103 fathoms. Station 5056; Ose Saki, N. 37° E., 5 miles; 258 

 fathoms. Station 5092; Joga Shima Light, N. 19° W., 3.5 miles; 

 70 fathoms. 



Doctor Balss identifies this species with P.fimhriata Herklots, but 

 does not give any description. The matter of specific differentiation 

 is so far from being reduced to any actual standard, and the views 

 regarding specific characters are so varied, that the writer hesitates 



