550 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [48] 



OpJiioscolex quadrispinus Yerrill. 1884. Figs. 56, 56rt, 566. 



B. range, 101 to 234 fatlioms (101 fatfeoms, off IsTova Scotia, 1883). 

 Eare. 



Disk swollen; arms five, long, attenuated distally. The disk and 

 base of arms are covered with a thick soft skin, with close wrinkles or 

 small rounded verrucse above, becoming concentric and radial wrink- 

 les beneath, but beyond the basal part of the arms becoming smoother 

 and thinner, concealing the feebly developed arm-plates. Arm-spines 

 four, or alternately three and four, near base of arms (three in young 

 examples), nearly equal, rather stout, tapered; lower ones blunt; upper, 

 acute in part, scarcely as long as the breadth of the arm. Tentacle-scale 

 small, tapering, acute; teeth, six to eight or more, rather slender, 

 acute, often in pairs ; mouth-papillse, small, slender, acute, unequal, 

 eight to ten on a side of each angle, besides two or three larger ones 

 outside of the second mouth-tentacle and one within the slit at the first 

 mouth-tentacle ; the outer papillae in large specimens are crowded so as 

 to form two or more rows. Large examples have the disk 14"^™ in diam- 

 eter ; length of arms, TO"^'". Stations 1121 and 2069 ; also Gulf of Maine, 

 station 38, in 112 fathoms, 1878. 



Hemieuryale tenuispina Verrill. 1885. 



Astronyx? tenuispina Yerrill, Amer. Journ. Sci., vol. 28, p. 219,1884. 



B. range, 1,362 to 2,033 fathoms, 1883. Locally abundant on Scleropti- 

 lum (jracile V. 



The disk is covered with thin roundish scales, visible when dried, 

 without granules ; radial shields prominent distally ; arms with small 

 scales above, and larger prominent ones along the sides; spines three, 

 the upper longest; tentacle-scales small, spiuiform; mouth-shield small, 

 rhombic ; mouth-papillse several, small, in a regular row. 



Astrochele Lymani Yerrill. 1878. Fig. 53. 



B. range, 264 to 1,608 fathoms ; 407 to 1,608 fathoms, ] 883. Abundant 

 on Acanella. 



Astronyx Loveni Miiller and Troschel. Figs. 54, 54«, h. 



B. range, 787 to 1,362 fathoms (843 to 1,362 fathoms, 1883). Common 

 on Pennatulacea. 



Gorgonocephalus LamarcMi Lyman. 



Astrophyton LamarcMi M. «& Tr., Syst. Ast., 1842. 



B. range, 150 to 300 fathoms (194 fathoms, 1882; 239 fathoms, 1883). 

 Common off ISTova Scotia on Alcyonaria. 



CRINOIDEA. 



Antedon dentata (Say) Verrill. Fig. 58, young. 



B. range, 69 to 640 fathoms (69 to 487 fathoms, 1883). Common; 

 sometimes abundant locally. 



