. Alaska ... Natural history; Scientific expeditions. 90 RATHBUN it is furnished with a rudimentary epipod, or with a fully developed one. The last pair of pereiopods reach the end of the antennal scale. The fourth abdominal segment is provided with a spine on either side. Fig. 38. Spirontocaris suckleyt. 9 (X .22)' Station 3334. view of anterior portion. a. Side. b. Dorsal below. The sixth segment is a little shorter and broader than in ^S". iownsendi. Male.—As in S. iownsendi, the male resembles the female, except for being smaller, more slender, and with longer antennules. S. suckleyi
. Alaska ... Natural history; Scientific expeditions. 90 RATHBUN it is furnished with a rudimentary epipod, or with a fully developed one. The last pair of pereiopods reach the end of the antennal scale. The fourth abdominal segment is provided with a spine on either side. Fig. 38. Spirontocaris suckleyt. 9 (X .22)' Station 3334. view of anterior portion. a. Side. b. Dorsal below. The sixth segment is a little shorter and broader than in ^S". iownsendi. Male.—As in S. iownsendi, the male resembles the female, except for being smaller, more slender, and with longer antennules. S. suckleyi differs from S. gaimardii in the fewer dorsal spines, 5 or 6 against 7 or 8 in S. gaimardii/ in the larger eyes; in the antennular peduncle of the female reaching middle of antennal scale; in the absence of hook or hump on the third abdominal segment in the male; in the slightly shorter sixth segment; and in the absence usually of an epipod from the second pereiopod. Variations.—In about three hundred specimens examined only one lacks the spines on the fourth abdominal segment; in another specimen the spine is present on one side, absent on the other. Dimensions.—Length of ? (station 2864) approximately 79 mm., length of carapace and rostrum mm., of rostrum 16 mm. Distribution.—From the Arctic coast of Alaska southward to Wash- ington; 6 to 165 fathoms. Taken by the Albatross at the following stations: Off the Pribilof Islands, 20-65 fathoms, stations 3438, 3439, 3483, 3494, 3496, 3504, 3535> 3538, 3552, 3560, 3561, 3611, 3637- Bristol Bay, 19 fathoms, station Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harriman Alaska Expedition (1899); Harriman, Edward Henry, 1848-1909; Merriam, C. Hart (Clinton Hart), 1855-1942; Washington Academy of Sciences (Washington, D. C. ). New York, Doub
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901
