214 A. E. Verrilli—Marine Fauna of North America. 
and dark purplish brown color, when contracted giving a spotted 
appearance to the dorsal surface. Madreporic plate small, about 
half way between center and margin. Margin thickened, with 
an upper row of slightly prominent plates spinulated like the 
back ; below, and forming the edge, is a row of more prominent 
plates, their upper and inner portion spinulated like the back, 
the spinules increasing in length to the outer edge, where they 
are slender, elongated, crowded and divergent. Ventral plates, 
covering the triangular interbrachial area, prominent, with une- 
qual, slender, acute, divergent spinules, those on the distal edge 
longest. Adambulacral plates with two internal acute spines, 
forming a longitudinal row, and four or five others in a trans- 
verse row on each plate. Color, in alcohol, dull yellow or buff, 
with dark brown spots, due to the papulee. 
Greater radius, 12™; lesser, 7™: elevation at center, 7™™. 
muddy bottom, in 1874, by Dr. A. S. Packard and Mr. Richard 
athbun, on the steamer “ Bache,” (Coll. U. S. Fish Commis- 
ion). 
si 
Lophaster fureifer Verrill. 
Solaster furcifer Duben and Koren. 
Taken in the Gulf of Maine, north of George’s Banks, in 150 
fathoms, by Dr. Packard and Mr. Caleb Cooke, on the ‘‘ Bache,” 
in 1872. This species differs so widely from Solaster in the 
structure of the skeleton, and the small development of the 
disk, as to require the establishment of a new genus for this 
type. It is specially distinguished by the highly developed 
skeleton of the under side; differentiated marginal plates ; an 
prominently reticulated dorsal plates. 
Pedicellaster typicus Sars. 
This species was dredged in the Gulf of St. Lawrence, in 1872, 
by Mr. J. F, Whiteaves, who sent me specimens for examination. 
Asterias stellionura Perrier. 
This large and remarkable species, previously known only 
from Iceland and Greenland, was dredged by our party, on the 
steamer Speedwell, in 1877, at several localities off Nova Sco- 
Jarge numbers. It was especially abundant off Ca 
Sable, in eighty-eight to ninety-two fathoms, fine compact sand ; 
and off Hi: : in one hundred fathoms, sandy mud, where It 
was associated with Astrogonium granulare, Hippasteria phryg- 
tana, Archaster Parelii, Archaster arcticus, Antedon Sarsit, and 
man other arctic species. 
This species can be distinguished from all others of our coast 
by the five, very long, angular arms, with long slender spines, 
which are surrounded at base by large dense wreaths of crosse 
