. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. SHALLOW-WATER STARFISHES 119 towards the mouth are distinctly longer, more slender, and more acute. The mouth is not much sunken and the adoral carinae are short, composed of only two contingent pairs of plates, besides the epiorals. The apical pairs of peroral spines are well developed, but shorter and not stouter than the average adambulacrals; the side spine is about half as long, strongly divergent, so that those on adjacent jaws often have their tips in contact and thus might form a continuous fence around the oral area.
. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. SHALLOW-WATER STARFISHES 119 towards the mouth are distinctly longer, more slender, and more acute. The mouth is not much sunken and the adoral carinae are short, composed of only two contingent pairs of plates, besides the epiorals. The apical pairs of peroral spines are well developed, but shorter and not stouter than the average adambulacrals; the side spine is about half as long, strongly divergent, so that those on adjacent jaws often have their tips in contact and thus might form a continuous fence around the oral area. The epiorals and adorals are long and slender, tapered, subacute; they often bear both minor and major pedicellariae. The latter are small, ovate-lanceolate, sub- acute. Minor pedicellariae are abundant on all the spines, forming close wreaths on the dorsals and superomarginals, but secund clusters iv A V. Fig. 5. Leptasterias inequalis. iit, One of the jaws, a, a; a', a', apical or peroral spines; a", lateral jaw-spines; e, the first pair of epioral or suboral spines; e', 2d pair; p, pedi- cellaris; X 17. iv. One of the adoral spines; X 17. v, A major pedicellaria more enlarged. on all the spines of the lower surface. Major pedicellariae are few in number, small, ovate or ovate-lanceolate. The type is from Orca, Alaska (Prof, W. R. Coe, Harriman Expedition). This is, quite probably, the young of a larger species, perhaps not a Leptasterias, but I am unable to refer it to any known to me. It somewhat resembles some of the five-rayed varieties of epichlora, but the flat, closely imbricated dorsal ossicles, without many reticula- tions, forbid its union with that protean species, at present, for no intermediate specimens have been found. LEPTASTERIAS LEPTALEA Verrill, sp. nov. Plate xviii, figure 3 (type). A small and very delicate five-rayed species. Radii, mm. and 15 mm.; ratio, i: 6. Rays terete, evenly tapered. Dorsal ossicles relatively strong, thickened, especiall
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