. Alaska ... Natural history; Scientific expeditions. 124 RATHBUN segment has a deep median sulcus. The abdominal sulci are filled with a thin short pubescence easily rubbed off. The sixth segment is about one and a third times as long as the fifth. Dimensions.—Female (station 3441), length from tip of rostrum to tip of telson 64 mm., length of carapace 16 mm., length of antenna! scale mm. Harriman Expedition.—Juneau, 20 fathoms. JDistribution.—From Bering Sea to San Diego, California (including Puget Sound and Strait of Fuca), 20-309 fathoms; taken at 142 stations by the Albatross, often
. Alaska ... Natural history; Scientific expeditions. 124 RATHBUN segment has a deep median sulcus. The abdominal sulci are filled with a thin short pubescence easily rubbed off. The sixth segment is about one and a third times as long as the fifth. Dimensions.—Female (station 3441), length from tip of rostrum to tip of telson 64 mm., length of carapace 16 mm., length of antenna! scale mm. Harriman Expedition.—Juneau, 20 fathoms. JDistribution.—From Bering Sea to San Diego, California (including Puget Sound and Strait of Fuca), 20-309 fathoms; taken at 142 stations by the Albatross, often in large numbers. Less abundant at southern localities. Off southeastern coast of Kamchatka, 96-100 fathoms, at two Albatross stations. Two specimens were received from the Hopkins Laboratory at Pacific Grove; they were probably taken in deep water. One specimen was collected at Port Etches, Alaska, in 12-18 fathoms, by W. H. Dall. Variations.—The rostrum in normal individuals does not extend be- yond the eyes; in many cases, however, it is evident that the rostrum has been broken off or injured and later renewed, the new rostrum having a narrow, elongated, and ascending tip exceeding the eyes, but of variable length. In other respects these abnormal forms do not differ from the types. CRANGON RESIMA Rathbun. Crangon resima Rathbun, Proc. U. S. Nat. Mus., xxiv, 889, 1902. Near C. communis. Carapace and rostrum a little more than one third the length of the abdomen; a median carina on the middle third of the carapace, armed with two spines, not far apart, the posterior larger and more ele- vated and in front of the middle. A sharp hepatic spine is in a transverse line with the anterior median spine and terminates a short but prominent carina. Rostrum long, narrow, _ J pointed, advanced beyond the eyes, ascend- "' / ing at an angle of about forty-five degrees. Fig. 6s. Crangon resima. ?. slightlv curvcd, and prolonged dowuward in Station 2935. a. Dorsal view of an-
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901
