NO. 1923. DESCRIPTIONS OF PACIFIC ALCYONARIA— NUTTING. 29 



about reducing an accepted name to the ranks of synonymy unless 

 the evidence is presented. 



PENNATTJLA MURRAYI KoIHker. 

 Pennatula murrayi KOlliker, Challenger Report, the Pennatulidse, 1880, p. 5. 



Total length of colony 12 cm. Stem 4 cm. long, with a sharply defined 

 terete swelUng just below the rudimentary pinnae. The leaves are slen- 

 der, 22 pairs, lanceolate, 10 mm. long and 3 mm. broad. The calyces 

 are 9 to each leaf, when the latter is fully developed, tubular, much 

 exserted, 2 mm. long, 1 mm. broad; not expanding at the margin, 

 but contracting shghtly. The marginal points are much broken in 

 the specimen described, but they do not appear to be regularly 8 in 

 number. The spicules are longitudinally placed on the calyx walls, 

 and are usually nearly parallel. In the leaves the spicules are criss- 

 crossed. The polyps are yellowish, probably yellow in hfe. 



The zooids differ greatly in size, one or two of the ventral series being 

 very large, looking like rudimentary polyps opposite each leaf base. 

 Continuous with these is a broken row or patch of lateral zooids, 

 between the bases of the leaves and running around to the dorsal 

 surface, wliich, however, they do not invade. The zooids are con- 

 ical in shape and surrounded by a group of spicules with their cUstal 

 ends approximated, forming the apex of the cone. 



The spicules are red and yellow needles, characteristic of the 

 pennatuhds, the longest being about 1.5 cm. long. They are found 

 in the stem, rachis, leaves, and calyces. 



Color: The prevaihng color is red. The leaves, ventral surface of 

 rachis and basal end of stem, rather dull yellow, as are the polyps. 

 The specimen agrees well with the original description. 



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

 152-103 fathoms. 



General distribution. — ^The type was found by the Ohallenger south- 

 east of Ceram, west of New Guinea, 29 fathoms. Maldives, 43 

 fathoms (Hickson). 



This specimen differs from the original description in the length of 

 leaves, which Kolhker describes as 17 mm. long, instead of 10 mm., 

 as in the specimen described above. In detail, however, the 

 description talhes well. 



PENNATULA PENDULA Thomson and Henderson. 



Pennatula pendula Thomson and Henderson, Alcyonaria of the Indian Ocean; 

 I, Alcyonaria of the Deep Sea, 1906, p. 118. 



The colony is scarlet, total length 10.5 cm. The stem to rudimen- 

 tary leaves, 3.1 cm., slender, swollen at about its middle and with a 

 moderately distended end bulb. Its greatest diameter is 2.1 mm., 

 and its least diameter, below rachis, 1 mm. There are 15 pairs of 

 leaves from the first that show developed calyces. Leaves triangular 



