GORGONOCEPILALUS, 137 
at tip; one of the arm-spines very much longer than the rest, and 
almost as long as the arm is wide. Skin both of disk and arms 
without any hard deposit; no tentacle-scale; about six mouth- 
papillae. 
Colour, in spirit, creamy white. 
Sometimes found clasping the axes of living specimens of Funicu- 
lina quadrangularis. Arms not naturally extended, but when so 
drawn out may give a spread of 800 mm. 
R. ie 
380 (ca.) 15 
» 360 (ca.) 20 
175 (ca.) 10 
125 (ca.) 8 
Iistribution. Circumpolar: North Sea, eastern side of North 
Atlantic, Japan. To 350 fms. 
a. The Minch. 
‘ Porcupine’ Exp. 
6. Loch Torridon. 
J. A. Stewart, sq. 
e-g. Loch Hourn, 70 fms., 29/8/87. John Murray, Esq. 
h. Firth of Lorn. John Murray, Esq. 
7,7. Firth of Lorn (embracing Funiculina quad- John Murray, Esq. 
rangularis). 
k,l. Aberdeen. Geo. Sim, Esq, 
GORGONOCEPHALIN SE (see p. 27). 
GORGONOCEPHALUS. 
Gorgonocephalus (pars), Leach, Zool. Mise. ii. (1815) p. 51; (sens. 
emend.) Lyman, Chall. Rep. Oph. (1882) p. 258. 
Euryale (pars), Lamk. An. s. Vert. ii, (1816) p. 585; Ag. Mém. Soe. 
Neuch. li. (1839), Notice, Se. p. 1. 
Astrophyton (pars), Forbes, Brit. Starf. (1840) p. 67; M. Tr. Syst. 
Ast, (1842) p. 121; Lyman, Ill. Cat. Mus. C. Z. i. (1865) p. 180; 
Norm. Ann. § Mag. xv. (1865) p. 105. 
Disk rounded or with slight re-entering curves, thick; arms 
narrow at the base and not dividing so frequently as in Astrophyton. 
Radial shields elongated, diverge considerably. Upper arm-plates 
represented by a mosaic of thin irregular plates. 
Key to the Species. 
Dorsal surface of disk spiny .............. 1. G. linckt. 
Dorsal surface of disk not spiny...,........ 2. G. eucnemis. 
1. Gorgonocephalus lincki. 
? Astrophyton arborescens, Penn. Brit. Zool. iv. (1777) p. 56 (non 
MEL T.\)s 
? Asterias caput-meduse, Turt. Brit. Faun. (1801) p. 140, 
? Astrophyton scutatum, Flem. Brit. An. (1827) p. 489; Couch, Corn. 
Faun, i, (1838) p. 84. 
