NO. 1923, DESCRIPTIONS OF PACIFIC ALCYONARIA— NUTTING. 65 



right angle from the branch, but are usually inclined outward and 

 upward. Calyces about 1 mm. high to base of spines, club-shaped, 

 but not so much bent as is usual in this genus, although there is 

 considerable variation in this feature. 



The marginal scales have long sharp spines, sometimes 1 mm. in 

 length. There are 6 scales to each abaxial and outer lateral rows, 

 and 5 scales to each inner lateral and adaxial row. All the scales 

 have minutely ctenate edges and minutely granulated surfaces. 



The operculum is very high, reaching almost to the ends of the 

 spines, each scale being an acute-angled triangle, and the adaxial 

 ones being scarcely shorter than the others. 



The spicules of the stem and branches form an irregular mosaic, 

 and do not greatly overlap. 



Color: The axis has a bright golden metalUc luster, except on the 

 proximal parts of the large branches, where it is greenish-brown. 

 The general color of the colony is very Hght buffy-brown. 



Locality.— Station 4780; lat. 52° 01' N.; long. 174° 39' E.; 1,046 

 fathoms (type). ? Station 4771; lat. 54° 30' N.; long. 179° 17' E.; 

 426 fathoms. Specimens from the latter station are so fragmentary 

 and broken up that they are identified with doubt. 



Type-specimen.— C&t. No. 30050, U.S.N.M 



This species has a more loose and stragghng habit than any other 

 of the genus that I have seen. 



PLUMARELLA ADH^RANS, new species. 



Plate 8, figs. 1, la; plate 19, fig. 1. 



Colony (incomplete) 19 cm. long. The main stem, or branch, is 

 flattened, being 2 by 3 mm. in section, and is forked near its middle. 

 There are few secondary branches. 



The terminal . twigs are in the same plane, alternate, and are 

 usually 6 or 7 to each 2 cm. of length of stem or branch. The calyces 

 are in two rows, but not in pairs, usually alternate, and there are 

 usually 11 or 12 to each cm. of branch. 



The individual calyces are short, stout, almost conical, with the 

 adaxial sides closely appressed to the branch almost to the margin, 

 a little over 1 mm. in height and 0.7 mm. broad at margin. Abaxial 

 and outer lateral marginal scales armed with sharp spines; other- 

 wise the margin is quite even and clean cut all around. Abaxial and 

 lateral scales 5 in a row; adaxial rows with 2 wide short scales. AH 

 of the scales have even margins, not ctenate, but often with a central 

 lobe and comparatively smooth surfaces. 



The operculum is a low cone or dome, well developed, each flap 

 being a rather broad flat triangle, the adaxial ones being but sUghtly 

 smaller than the others and with their points scarcely overlapped by 

 4S702 °— Froc.N.M.vol.43— 12 5 



