ANTEDON. 57 
joint without a trace of an opposing process. Proximal pinnules 
greatly longer than those succeeding them. Ovaries narrow and 
long, extending over more than half the length of the pinnules. 
Groups of interradial plates occupying the spaces between the 
radial axillaries. Of a rich brown or reddish-tawny colour. 
Average size 11 inches from tip to tip of the arms.” 
3. Antedon petasus. 
Alecto petasus, Diib. § Kor. Vet.-Ahkad, Hdlg. 1844 (1846), p. 229, 
pl. vi. fig. 1; Sars, Norg. Ech. (1861) p. 1. 
Comatula petasus, Duj. § Hup. Echin. (1862) p. 199. 
Antedon petasus, P. H. Carpenter, Tr: Linn. Soc. Lond. ii. (1879) 
p. 29; 2d. Proc. Roy. Soc. Ed. xii, (1884) p. 373; id. Chall. Rep. 
Com. (1888) p. 158. 
?Antedon rosacea, auct.; P. H. Carp. Journ. Linn. Soc. xxiv. (1891) 
p- 69. 
be 
a 
I have never seen this species from the British Seas; it was 
thus defined by Diiben and Koren :-— 
*‘ Cirrhis dorsum totum obtegentibus, sub—50, compressiusculis ; 
articulis 11-17, parum longioribus quam latioribus; brachiorum 
syzygus plerumque 4-articulatis ; pinnulis (in quoque latere) sub— 
50, quarum intima filiformis, longissima, tertiam plus duplo supe- 
rans.” Our two small specimens from Bergen agree with this. 
Reported from 87 fms. off Faeroe Banks ; found in N.E. Atlantic, 
20 to 100 fms. 
4, Antedon tenella. 
Asterias tenella, Retz. K. Svensk. Ak. Hdlgr. iv. (1783) p. 241; 
L., Gmel. Syst. Nat. xiii. (1788) p. 3166; Retz. Déss. Spec. Ast. 
(1805) p. 33. 
Alectro dentata, Say, J. Acad. Philad. v. (1825) p. 153. 
ears ae tae (?), Sars, Beskriv. og Jagttagels, 1835, p. 40, 
pl. 8. fig. 19. 
Alecto sarsii, Diib. § Kor. Vet.-Akad.’ Hdlg. 1844 (1846), p-. 231 
pl. vi. fig. 2; Leith. Vid. Medd. 1857, p. 107; Sars, Norg. Echin. 
(1861) p. 1; Jerzynsky, Trans. Petersh. Soc. Nat. i. (1870) p. 318. 
ae (Alecto) sarsi, J. Mill. Abh. Ak. Berl. 1847 (1849), 
p. 254. 
Comatula sarsii, Alder, Ann. § Mag. v. (1860) p. 74; Duj. § Hup. 
Echin. (1862) p. 199. 
Antedon sarsii, Norm. Ann. § Mag. xv. (1865) p. 103; Sars, Mem. 
Crin, viv, (1868) p. 47, pls. 5 & 6 [pentacrinoid stage]; Wyv. 
Thoms. Proc. Roy. Soc. Ed. vii. (1872) p. 765; Verrill, Am. J. Sci. 
vii. (1874) p. 500; ed. op. cit. xxiii. (1882) p. 135; Bell, P. Z. 8. 
1882, p. 534. 
Antedon dentatum[a], Verrill, Am. J. Sci. xxiii. (1882) p. 222; 
P. H. Carp. P. Z, S. 1882 (1883), p. 746; id. Proc. Roy. Soc. Ed. 
