■36 O^^dletin of the ^Natural History Society, 
of large size in Gulf of St. Lawrence in 25 and up to 250 
fathoms; Bradelle Bank, large and frecpient, Whiteaves (P). 
Tliis species is quite common in our waters in from five to thirty 
fathoms. It is of a grey color above, lighter beneath. The disk, which 
is one-half to three-fourths of an inch in diameter, is circular in form 
and covered above with rounded plates of different sizes, among which 
may be distinguished one central surrounded by five others, and one on 
each side of the base of each arm. The mouth has thirteen papill® to 
each angle and conspicuous mouth shields. The arms are three to four 
times as long as the diameter of the disk. Upper arm-plates are large ; 
side arm-plates nearly cover the under, and each bears three spines, 
giving them a triple row on each side. It can only move its arms in 
the plane of the body, and in a stiff and ungraceful way, making with 
them a sort of oar-like motion, by which it propels itself over the mud 
on which it lives. JNothing is known of its habits. Its development is 
direct and it is viviparous. 
[Prof. Verrill writes as this paper is in press, that in the 
Bay of Fiindy “of Ophinrans, OphioglypUa signata, V., is 
common, and there are additional species of Ophiacantlia, 
Ampliiura and OpMoscolexS'] 
Order II. ASTERIDEA (True Starfishes). 
Asteroidea whose arms are prolongations of the disk, containing appendages of the 
alimentary canal and also the generative organs, possessing a deep uncovered 
amhidacral groove, running along the ventral surface, in xchich the ambul acral 
feet are arranged in rows. 
FAMILY ASTEKIAD^ 
With the cylindrical ambulacral feet ending in broad suctorial disks, and usually 
arranged in four rows along each ambulacral groove. 
3. Asterias vulgaris, Stimpson-, Ms. Uraster rnhens, Lm. 
Ag. (A). Uraster violacea, Muller. (A). Asteracanthion 
ruhens, M. etT. (D). Asteracanthion violaceus, M. et T. 
(D). [See Plate, Fig. 4*]. 
“ Starfish,” “ Five-finger,” “ Crossfish.” 
Description. (A) pp. 83 and 01, (L) p. 347, (S) p. 418. 
Figure. (A)pp. 83 and 91, American Naturalist, Vol. II., 
pi. VI., Fig. 11. 
*Fig. 4 represents A. Forbesii, but as the characters which separate the species 
<lo not appear in a figure, it shows well the appearance of A. vulgaris. 
