68 RATHBUN 
segments with a spine at the lower postero-lateral 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.— 4, length 14 mm. 
Type locality.—Heceta Bank, Oregon, 50 fathoms (AJ/datross station 
2886); one specimen. 
Aside from the peculiar form of the rostrum, this species differs 
notably from 5S. sfiva in its subequal and more widely separated supra- 
orbital spines. Its habitat is also farther south than the known range of 
S. spina. 
SPIRONTOCARIS LILJEBORGII (Danielssen). 
Hippolyte Lifjeborgii 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., x1x, 196 [8], plate, figs. 15-20, 1872. 
Hippolyte securifrons NORMAN, Rept. Brit. Assoc. Adv. Sci. for 1861, XXXI, 
151 (1862); Trans. Tyneside Naturalists’ Field Club, v, 267, pl. 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 oo” 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 
ae td SEED (approximate) 59.5 mm., length of 
carapace and rostrum 25.2 mm., of 
rostrum 14.8 mm. 
Fic. 23. Sfzrontocaris bispinosa. Side of cara. Distribution. — From Strait of 
OE AN ees Fuca to off San 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, station 3076. 
Off Tillamook Rock, Oregon, 29 fathoms, station 2882. 
Off Bodega Head, California, 167 and 62 fathoms, stations 3170, 3172. 
Off Farallone Islands, California, 191 fathoms, station 3161. 
Monterey Bay, 13-68 fathoms, stations 3132, 3134, 3666. 
Off Lobos Rocks, 77 fathoms, station 3184. 
Off San Simeon Bay, 211 and 160 fathoms, stations 3191, 3193. 
Off Esteros Bay, 92 fathoms, station 3194. 
