Boone, Echinodermata, Cruises of "Eagle" and "Ara," 1921-28 87 



the base. The spines on the face of the plate are somewhat pointed, 

 six to eight, arranged in a single curved, transverse series, the con- 

 cavity of the curve away from the mouth; the largest spine nearest 

 the furrow. The oral plates are very conspicuous, bearing on the 

 margin a series of 14 to 20 spines of which those at the oral end of 

 the plate are much the largest, the others diminishing in size. On the 

 face of each plate there is a ridge bearing three to twelve spines of 

 variable length, the longest being nearest the oral end of the plate. 

 The papulae are small, usually single. The madrepore is small with 

 numerous fine furrows. The feet are stout, biserial. 



The starfish is very voracious, frequently swallowing animals of 

 its own approximate size. It feeds principally on other starfishes. 



References: Rumphius, Amboinsche Raritetenkammer, Tab. XV, 

 fig. F, 1705. 



Octactis dactyloides Linck, De Stellis Marinis, p. 39, pi. 14, no. 24, 

 1733. 



Enneactis coriacea dentata Linck, ibid, p. 40, pis. 15, 16, no. 26. 



Asterias endeca Retzius, K. Vet. Akad. Hand. Stockholm, t. IV, 

 p. 237, 1783.— Gmelin, Syst. Nat. Linn. ed. 13, t. I, pt. VI, 

 p. 3162, 1789. — Lamarck, Anim. sans Vert., vol. II, p. 560, no. 23, 

 1816. — Flemming, Hist. Brit. Animals, p. 487, 1828. — Johnston, 

 Mag. Nat. Hist., vol. IX, p. 300, fig. 44, 1835. 



Stellonia endeca L. Agassiz, Mem. Soc. Sc. Nat. Neufchatel, vol. I, 

 p. 192, 1835. 



Solaster endeca Forbes, Mem. "Werner Soc, vol. 8, p. 121, 1839. — 

 Gray, Ann. Mag. Nat. Hist., vol. VI. p. 183, 1840.— Forbes, Hist. 

 Brit. Starfishes, p. 109, 1841. — Muller and Troschel, System 

 der Asteriden, p. 26, 1843. — Stimpson, Synop. Marine Invert. 

 Grand Manaan, p. 14, 1853. — Lutken, Vidensk. Meddel., ser. 1, 

 vol. 9, p. 35, 1857. — M. Sars. Oversigt af Norges Echinodermer, 

 1861. — Verrill, Proc. Boston Soc. Nat. Hist., vol. X, p. 345, 

 p. 356, 1866. — Hodge, Nat. Hist. Trans. Northumberland and 

 Durham, vol. IV, p. 135, 1871. — Perrier, E., Arch, de Zoologie 

 Exp. and Gen., vol. IV, p. 95; ibid, 359, 1875. — Moebius and 

 Buetschli, Die Exped. z. phys.-chem. und biol. Unters der Nord- 

 see, Bericht, 1875, p. 148. — Viguier, Arch. d. Zool. exp. et gen. 

 torn. VII, p. 134, 1878. — Duncan and Slab-en, A. Memoir on the 

 Echinodermata of the Arctic Sea to the west of Greenland, p. 40, 

 1881. — t. 3, figs. 3-8, 1881. — Danielsen and Koren, N. Nordhavs- 

 Exp., p. 50, t, 9, figs. 13, 18, 1884. — Levinsen, Dijmpha-Udbytte, 



