48 PROCEEDINGS OF THE NATIONAL MU8EUM. vol.43. 



former darker, sometimes a purplish-brown. The swelHng and end 

 bulb a light reddish-brown. 



Localities. — Station 4765; West Point Yunaska Island, S. 37° E., 

 43.5 miles; 1,217 fathoms. Station 4973; Shio Misaki Light, N. 82° 

 E., 12.5 miles; 600 fathoms. 



General distribution. — The type-locahty is North Atlantic, south of 

 Hahfax, 1,250 fathoms, Hawaiian region, 233 fathoms (Nutting). 

 Indian Ocean, 1,000 fathoms (Thomson and Henderson). 



The specimens from station 4973 are in very poor condition and 

 may possibly be incorrectly identified. 



FamUy ECHINOPTILID^ Hubrecht. 



Small, pennatula-like forms in which the axis cylinder is wanting. 



Genus ECHINOPTILUM Hubrecht. 



Being the only genus of Echinoptilidse, it has the characters of the 

 family. 



ECHINOPTILUM MACINTOSH! Hubrecht. 

 Echinoptilum Tnadntoshi Hubrecht, Proc. Zool. Soc. London, 1885, p. 512. 



Colony 9.2 cm. in length, curved in a semicircle, the end bulb more 

 sharply curved in the same direction. The stem, below rudimentary 

 polyps, about 3 cm. long, decreasing gradually in diameter from 7 mm. 

 to 4.5 mm. near the rather sharply pointed end. Greatest diameter, 

 across rachis, 9 ram. The rachis is round or obscurely quadrangular 

 in section, with a distinct groove on the concave side. The polyps 

 are arranged in vertical rows, about 20 to a row, and also in oblique 

 transverse rows of 6 to 7 from mid-dorsal to mid-ventral surface. 

 Polyps 3.5 mm. long, on outer side, to top of spines. 



Each calyx margin bears two strong spines composed of groups of 

 spicules which sometimes project as much as 1.5 nun. above the 

 margin. Calyces about 2 mm. broad at base, narrowing to the mar- 

 gin. The calyces are smallest near the groove and lower rachis. 



Zooids : These are scattered plentifully between the calyces, being 

 absent from the groove only. 



Spicules: These are all sharply pointed needles, characteristic of 

 the pennatulids. 



There is no axis cylinder. 



Color: Rather dull pink throughout, the color of the needles. 



Locality. — Station 4842; Saigo Misaki (Dogo Island), S. 64° W., 

 6.1 miles; 82 fathoms. 



General distribution. — The type was from the Japanese Sea, 71 

 fathoms. The species has also been reported from the Hawaiian 

 Region (Nutting). 



