. Bulletin - United States National Museum. Science. GAMMARIDEAN AMPHIPODA 67 tapering proximally, palm acutely chelate, lacking extraordinary com- plex processes; posterodistal spines on article 6 of pereopods 1 and 2 simple; pereopod 3 with subcircular article 2, posterior lobe extending nearly to middle of article 4, latter slightly thickened; article 2 of pereopod 5 very broad, slightly excavated posterodistally (not dam- aged) ; posteroventral corners of pleonal epimera as follows: 1 rounded, 2 subquadrate, 3 rounded-quadrate, and 3 wdth slightly con- vex, smooth posterior margin; pleonit
. Bulletin - United States National Museum. Science. GAMMARIDEAN AMPHIPODA 67 tapering proximally, palm acutely chelate, lacking extraordinary com- plex processes; posterodistal spines on article 6 of pereopods 1 and 2 simple; pereopod 3 with subcircular article 2, posterior lobe extending nearly to middle of article 4, latter slightly thickened; article 2 of pereopod 5 very broad, slightly excavated posterodistally (not dam- aged) ; posteroventral corners of pleonal epimera as follows: 1 rounded, 2 subquadrate, 3 rounded-quadrate, and 3 wdth slightly con- vex, smooth posterior margin; pleonite 4 with dorsal hump in adult fe- male, nearly straight dorsally in juvenile; uropods 1 and 2 with both rami spinose; inner ramus of uropod 3 reaching apex of outer ramus; telson cleft 40 percent of its length, each apex with one large Figure 28.—Orchomeve tabasco, new species, holotype, female, mm, 7229: a, maxilla 1; b, epistome-labium complex, left lateral; c, mandible; d,e, antennae 1,2; /, maxilla 1; g,h, gnathopods 1,2, minus setae; i, maxilliped;;', lower lip. HoLOTYPE.—AHF No. 6032, female, mm. Type-locality.—Station 7229, 27°54'25" N, 115°40'00'' W, 1720- 1748 m, Dec. 31, 19G0. ]VL\TERiAL.—Holotype and one juvenile, mm long, from the type- locality. Relationship.—This species fits into the complex of species sur- rounding Orchomene j)'mguis (Boeck), just discussed above. The con- gruency is seen in the condition of the following characters: lateral. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
