16 BULLETIN OF THE 



the deep fishing grounds ofiF Newfoundland and Nova Scotia, by the Glouces- 

 ter halibut fishermen. Off Greenland, " Valorous " Expedition, — Norman. 

 The following specimens were dredged by the Blake, in 1880. 



Station. Fathoms. N. Lat. W. Long. Specimens. 



306 524 41° 32' 50" 65° 55' 5 in bad state. 



307 980 41° 29' 45" 65° 47' 10" 4, with fragments. 



308 1242 41° 24' 45" 65° 35' 30" 7 in bad state. 



309 304 40° 11' 40" 68° 22' 13 



310 260 39° 59' 16" 70° 18' 30" Sev. fragments. 

 312 466 39° 50' 45" 70° 11' 12 in bad state. 

 339 1186 38° 16' '45" 73° 10' 30" 1, with fragments. 



This species is closely allied to the Acanella arbuscula (Johnson) Gray, de- 

 scribed from off" Madeira, in 1862. It may, in fact, ultimately prove identical 

 when the specimens can be directly compared. The figure of A. arbuscula 

 indicates a more diffusely branched form, with more slender branches and 

 branchlets. The calicles, also, judging from the figure, are different in form, 

 but this might be largely due to distortion in drying. The Arctic form de- 

 scribed by Norman under this name is evidently identical with our species, 

 but the use of the same name was, apparently, accidental, as he did not refer 

 to Johnson's species. 



From the Bay of Yeddo, Japan, I have several specimens of an Acanella 

 without the coenenchyma, which I cannot distinguish by the axis alone from 

 A. Normani. They were collected by Professor E. S. Morse. 



Acanella eburnea (Pourtales) Verrill. 



Mopsea eburnea Pourtales, Bull. Mus. Comp. Zool., I., 1868, p. 132. 



Plate IT. Fig. 5. 



Loosely and not very abundantly branched, th? branches arising from the 

 horny joints, sometimes singly, sometimes two or three from one joint, but not 

 forming whorls in any of the specimens examined. The brandies are often 

 crooked, slender, and usually spread widely at the base. The calcareous joints 

 are long, slender, translucent white, distinctly grooved, and solid, in both the 

 larger and smaller branches examined; the horny ones are short, dark brown 

 or brownish yellow. The calicles are decidedly swollen at the base, and usu- 

 ally broader than the small branches on which they are obliquely set; they 

 usually taper distally, and the slightly expanded margin is armed with eight 

 large, sharp, spinous spicula, which are minutely warted or spinulated over 

 the whole surface. Below the margin the calicles are covered with numerous 

 and crowded, much smaller, slender, finely warted spicula, which are arranged 

 obliquely or somewhat spirally below the middle. The coenenchyma is 

 very thin; near the calicles, and especially neai the ends of the branches, the 



