Boone, Echinoidea, Cruise of "Alva," 1931 247 



A. — Verrill, a. E., Monogr. Harriman Alaska Series, 



Smiths. Inst., vol. XIV, 1914, p. 364; Ann. Mag. Nat. Hist., 



ser. 8, vol. XIV, 1914, p. 16. 

 Asterias echinites, Ellis and Solander, Nat. Hist. Zooph., 1876, 



pis. 60 to 62. 

 Acanthaster echinus, Gervais, Diet. Sci. Nat. Suppl. I, 1841, p. 



474. 1841. 

 Acanthaster planci, Verrill, A. E., op. cit., vol. XIV, 1914, p. 



373.— Fisher, W. K., Bull. 100, vol. Ill, U. S. Nat. Mus., 1919, 



p. 441. 

 Acanthaster echinites, Lutken, C, Vidensk. Meddel., 1871, p. 



292.— Perrier, E., Arch. Zool. Exper., t. IV, 1875, p. 360.— 



DODERLEIN, L., Zool. Jahrb. Syst., 1889, Bd. Ill, 1889, p. 822; 



also in Semon's Zoologische Forschungsr. in Australien, Bd. 



V, text; Denks. Med. Naturw. Ges., Bd. VIII, 1894-1903, p. 



320, 322; atlas, taf. 21, figs. 2-7, 1896.— Sladen, W. P., Kept. 



Voy. H. M. S. "Challenger" Zool., Asteroidea, vol. XXX, 



1889, p. 536, 537. — DE LORIOL, P., Revue Suisse Zool., t. I, 



1893, p. 387. — LUDWIG, H., Mem. Mus. Comp. Zool., vol. 



XXXII, 1905, p. 215. — Koehler, R., Mem. Soc. Zool. France, 



t. VIII, 1895, p. 402— Sluiter, C. P., Bidrag Dierk. K. Zool. 



Gesellsch. Afl. 17, 1895, p. 63.— Bell, F. J., in Dr. Willey's 



Zool. Results on Material from N. Britain, N. Guinea, the 



Loyalty Isles and Elsewhere, pt. II, Echinoderms, 1899, p. 



138; Fauna and Geogr. Maldive and Laccadive Arch., vol. I, 



pt. Ill, 1902, p. 226. 



^ ECHINOIDEA 



Order: CIDAROIDEA 

 Family. CIDARIDAE 



Genus: EUCIDARIS Pomel 

 Eucidaris thouarsii (Valentin) 



Plates 80 and 81 of Vol. IV 



Material examined: A single, magnificent specimen, taken 

 in Conway Bay, Galapagos Islands, by the "Alva." 



Discussion : This single specimen, taken by the "Alva," also 

 those taken by the "Ara" in Galapagos, and those taken by the 

 "Pawnee" in the Gulf of California are true E. thovxirsii. Re- 



