Nidorellia armata (Gray 1840)

Nidorellia armata (Cray)

Pentaceros (Nidorellia) armata Gray, 1840:277; 1866:7, pl. 14: fig. 1–3.

Oreaster armatus (Gray).—Mueller and Troschcl, 1842:52.—Lutkcn, 1864:148.—Bell, 1884:79.—von Martens, 1865:433.

Goniodiscus armatus (Gray).—Lutken, 1859:75.

Goniodiscus conifer Mobius, 1859:10, pl. 3: fig. 5–6.

Nidorellia armata (Gray).—Verrill, 1867:280.—Perrier, 1876:67.—Viguier, 1878:193.—Leipoldt, 1895:634.—H. L. Clark, 1910:332, pl. 4: fig. 2.—Doderlein, 1916:418; 1936:316, pl. 21: fig. 1–6a.—Boone, 1926:3, pl. 1; 1933:73, fig. 2.—Ziesenhenne, 1937:216.—H. L. Clark, 1940:333.—Steinbeck and Ricketts, 1941:381, pl. 10: fig. 1, pl. 11: fig. 2.—Ely, 1945:15.—Caso, 1943:9, 66, pl. 22: fig. 1–2, pl. 23: figs. 1–2; 1953:221; 1961:63, figs. 22–23.—H. L. Clark, 1958:95.—Caso, 1962:63, figs. 22–24.

Nirodella armata (Gray).—Stanek, 1955:48.

Nidorellia armata is represented in this collection by one specimen, quite large and heavy (R 10 cm, r 6.5 cm, dry weight 177 grams). The marginals, particularly the distal ones, are tremendously swollen and most bear 1 or 2 stout spines or low tubercles. The much smaller principal plates of the abactinal surface usually bear 1 or 2 low tubercles. The papular areas of the abactinal surface are covered with pedicellariae of the split granule type. This is a common shallow water species of the eastern tropical Pacific, known from lower California to Peru and the Hawaiian Islands.

OPHTOIASTERTOAE