. Alaska ... Natural history; Scientific expeditions. 68 RATHBUN segments with a spine at the lower postero-Iateral angle; sixth segment less than twice as long as fifth, and only a trifle longer than wide. Tel- son with four pairs of lateral spinules. Dimensions.— 5 , length 14 mm. Type locality.—Heceta Bank, Oregon, 50 fathoms {Albatross station 2886); one specimen. Aside from the peculiar form of the rostrum, this species differs notably from S. spina in its subequal and more widely separated supra- orbital spines. Its habitat is also farther south than the known range of S, spi?ia. SPIRONT
. Alaska ... Natural history; Scientific expeditions. 68 RATHBUN segments with a spine at the lower postero-Iateral angle; sixth segment less than twice as long as fifth, and only a trifle longer than wide. Tel- son with four pairs of lateral spinules. Dimensions.— 5 , length 14 mm. Type locality.—Heceta Bank, Oregon, 50 fathoms {Albatross station 2886); one specimen. Aside from the peculiar form of the rostrum, this species differs notably from S. spina in its subequal and more widely separated supra- orbital spines. Its habitat is also farther south than the known range of S, spi?ia. SPIRONTOCARIS LILJEBORGII (Danielssen). Hippolyte Liljeborgii Danielssen, Nyt Mag. for Naturvid., XI, 5, 1859 (brief description; Vol. xi appeared in 1861, but the separate contain- ing Danielssen's article was issued in 1859).—Danielssen and BOECK, Nyt Mag. for Naturvid., xix, 196 [8], plate, figs. 15-20, 1872. Hippolyte securifrons'^OKUX^, Rept. Brit. Assoc. Adv. Sci. for 1861, xxxi, 151 (1862); Trans. Tyneside Naturalists' Field Club, v, 267, pi. XII, figs. 1-7, 1863.—Smith, Trans. Conn. Acad. Arts Sci., v, 69, 1879. Distribution.—East of Point Franklin, Arctic Alaska (lat. 71° 02' 00" N., long. 157° 46' 00" W.), 19 fathoms, August 24, 1884, one small male (U. S, R. S. Corwin). Known from the Atlantic coast of America, from off Nova Scotia to Delaware Bay, 27-452 fathoms; northern Europe. SPIRONTOCARIS BISPINOSA Holmes. Spirontocaris bispinosa HOLMES, Occas. Papers Calif. Acad. Sci., VII, 207, 1900. Puget Sound. Dimensions.—Ovigerous ? , length (approximate) mm., length of carapace and rostrum mm., of rostrum mm. Fig. 23. spirontocaris bisj>inosa. Side of cara- Distribution. — From Strait of pace of, (X.). Station .935. p^^^ ^^ ^g gau Diego, California, 13-211 fathoms. Taken by the Albatross at: Strait of Fuca, 116 and 98 fathoms, stations 3447, 3448. Puget Sound, 82 fathoms, station 3067. Off Tahwhit Head, Washington, 178 fathoms, statio
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