. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. LYSIANASSIDAE 49 junction. Mandible with palp inserted over the strong molar. Maxilliped with inner margin of outer plate serrulate, a few large squarish spines on the apical margin. Gnathopod i, 5th joint short, triangular, 6th oblong, parallel-sided, palm transverse, slightly convex, two strong spines at the angle, and a row of setae along palm, finger with a small tooth distally on inner margin. Gnathopod 2, 6th joint a little more than half length (along upper margin) of 5th, ovate, obscurel
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. LYSIANASSIDAE 49 junction. Mandible with palp inserted over the strong molar. Maxilliped with inner margin of outer plate serrulate, a few large squarish spines on the apical margin. Gnathopod i, 5th joint short, triangular, 6th oblong, parallel-sided, palm transverse, slightly convex, two strong spines at the angle, and a row of setae along palm, finger with a small tooth distally on inner margin. Gnathopod 2, 6th joint a little more than half length (along upper margin) of 5th, ovate, obscurely chelate. Peraeopods 1-5 stouter than in barbatipes, especially peraeopods 3-5, the 4th joints strongly expanded. Uropod 3, rami lanceolate, subequal, inner distal margins setose. A single accessory branchia on both segments 5 and Fig. 12. Tryphosella atbina, a. Peraeopod 5. b. Side-plate 1. c. Profile of epistome and upper lip. d. Pleon segments 3 and 4. e. Gnathopod 1. Remarks. This form seems to be allied to barbatipes, Stebb., from Kerguelen, but differs in the stronger hand of gnathopod 1, with its short 5th joint, and the stouter posterior peraeopods. Genus Tryphosa, Boeck. Stebbing, 1906, pp. 68, 720. Stephensen, 1925, p. 101. Schellenberg, 1926, p. 266. Tryphosa kergueleni (Miers) (Fig. 13). Stebbing, 1888, p. 623, pi. viii; 1906, p. 69. Shoemaker, 1914, p. 74. Schellenberg, 1926, p. 266, fig. 15 a; 1931, p. 34 (part). Barnard, 1930, p. 327. Typical form Occurrence: 1. St. 165. South Orkneys. 1^,1 ovig. $ 14-15 mm. Stomach of Notothenia. 2. St. 174. South Shetlands. 1 ovig. $ 14 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. Lo
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