32 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



PENNATULA LONGISTYLA, new species. 

 Plate 4, figs. 2, 2a. 



Colony 9.8 cm. in length and 2.1 cm. wide. The stem is 4.8 cm. 

 long, with a slight, not abrupt, swelhng 3 mm. in diameter 1 cm. from 

 the rachis. There is no evident end-bulb. The racliis bears 20 

 pairs of leaves, wliich are narrow and straight for this genus, and end 

 proximally in a short twisted pedicel, beyond which the leaf is re- 

 markably uniform in width. The length of a fully developed leaf 

 is 1.6 cm. and its diameter 3 mm. 



There are five normal polyps on each leaf, and a rudimentary one 

 on its proximal end. 



The calyces he closely set along the leaf border in a single series 

 overlapping each other and almost parallel to the border. Their 

 length is hard to determine, but appears to be about 3 mm. The 

 calyces are narrow, tubular, and a little over 1 mm. in diameter. 

 The margin bears 8 slender, acute, not very conspicuous points com- 

 posed usually of but one or two spicules. The polyps are white, 

 with long tentacles fringed with long papillse which often appear 

 capitate. 



The zooids are much as in Pennatula sulcata as to distribution, but 

 much larger and more conspicuous. There are two broad bands 

 occupying the whole ventral surface of the rachis except a narrow 

 median groove. The zooids are densely crowded and papiUiform, 

 longer than broad, the papillse being directed toward the distal end 

 of the rachis. These bands extend to and cover the rounded top of 

 the racliis, and broaden between the leaf bases. The lateral zooids 

 are in close set lines extending around below each leaf base to the 

 dorsal surface. They are smaller than those on the ventral band-s. 



The spicules are small needles, light brownish-yellow in color, 

 on the rachis pinnules and calyces; and shorter, more bar-hke needles 

 in the stem. 



The color of the colony in general is light yellowish-brown, the 

 stem being lighter than the rachis. 



XocaZ'^.— Station 4815; Niigata Light, S. 25° E., 21.5 miles; 70 

 fathoms. 



Type-specimen.— Cat. No. 30095, U.S.N.M. ■ 



PENNATULA RUBESCENS, new species. 

 Plate 5, figs. 1, la. 



Colony 12.7 cm. in length, of which the stem is 3.5 cm. The stem 

 has a very slight swelling a little below the rudimentary leaves, and 

 a very slender termination. The greatest diameter of the stem is 

 2.6 mm., and the least, below the swelling, 1.2 mm. 



There are about 40 pairs of leaves, counting the rudimentary 

 ones. They are very slender triangles 1.2 cm. in length and 3 mm. 



