54 CRINOIDEA. 
Thenethvot arms’ 2. .\<:--e cede . 65 (broken) 70:* 
Wiameter of disk ..... . Nate as 8:5 7) 
Length of Ist pinnule< 22.5) 23°5 13 
cides ES. 12 
eh 2 th <7) 12 
Greatest length of cirri ........ 46 26 
This species appears to grow to a larger size in more northern 
latitudes ; thus a specimen from Discovery Bay had arms 200 mm. 
long, disk 11 mm. wide, the first pinnule was 25 mm. long, and the 
greatest length of cirri almost 50 mm. 
Distribution. Both sides of northern parts of North Atlantic and 
Arctic Ocean, 20-632 fms. 
a. 60° 14’ N., 6°17’ W., 632 fms. 
60° 29' 40” N., 8° 21’ W., 327 fms, 
b. or to ‘Triton’ Exp. 
60° 31' 15” N., 8° 14’ W., 430 fms. 
‘Porcupine’ Exp. 
2, Antedon bifida. (Plate IX.) 
Antedon rosacea, auctorum nuperorum. 
Asterias bifida, Penn. Brit. Zool. iv. (1777) p. 55. 
Antedon bifida, Bell, Ann. & Mag. iv. (1889) p. 452. 
Asterias decacnemos, Penn, Brit. Zool. iv. (1777) p. 56. 
Asterias pectinata, Addams, Linn. Trans. v. (1800) p. 10. 
Antedon gorgonia, Fréminville, Nouv. Bull. Soc. Philom. ii. (1811) 
p. 849. 
iATeots europiea, Leach, Zool. Mise. ii. (1815) p. 62. 
Comatula mediterranea, Lamk. An. s. Vert. ii, (1816) p. 535; 
Miiller, Phys. Abh, Ak. Berlin, 1847 (1849), p. 252; Heller, SB. 
ae Wiss. Wren, xlvi. (1863) i. p. 444; Barrois, Cat. Crust. (1882) 
. 35. 
anaes europea, Forbes, Rep, Brit. Assoc. 1850 (1851), p. 211. 
Comatula europea, Sars, Nyt Mag. x. (1859) p. 16. 
Comatula rosacea, Flem. Brit. An. (1828) p. 490; Blainv. Actinol. 
(1834) p. 248; Forbes, Wern. Mem. viii. (1889) p. 128; ad. Brit. 
Starf. (1841) p. 5; Thompson, Nat. Hist. Irel. iv. (1856) p. 436 ; 
Perrier, Arch. Zool. expér, ii. (1873) p. 29. 
Antedon rosacea +, Norman, Ann. § Mag. xy. (1865) p. 102; Wy». 
Thomson, Proc. Roy. Soc, Ed. vii. (1872) p. 765; Lang, Nature, 
xiv. (1877) p. 527; Hughes, Nature, xv. (1877) p. 7; Stebding, 
t. c. pp. 58, 866; Hunt, t.c. p.59; Mason, ibid. ; Carpenter, t. e. 
p. 197; 2. Tr. Linn. Soc. Lond, ii. (1879) pl. i. fig. 1, pl. iv. 
figs. 12-17; Dendy, Stud. biol. Lab. Owens Coll. i, (1886) 
p. 299; Herdman, Liverpool M. B. C. Rep. i. (1886) p. 181; 
Haddon § Bell, Proc. Roy, Ir. Acad. iv. (1886) p.618; Carpenter, 
Chall. Rep. Com. (1888) p. 158; Chadwick, Inverpool M. B. C. 
Rep. ii. (1889) p. 48; Perrier, Nouv. Arch. Mus. ix. (1886) p. 53, 
* All measurements, unless otherwise stated, are in millimetres. 
+ By some written A. resaceus ; I have not thought it necessary to distinguish 
them. 
