File:Bulletin - United States National Museum (1967) (14784411435).jpg

Identifier: bulletinunitedst2591967unit (find matches)
Title: Bulletin - United States National Museum
Year: 1877 (1870s)
Authors: United States National Museum Smithsonian Institution United States. Dept. of the Interior
Subjects: Science
Publisher: Washington : Smithsonian Institution Press, (etc.) for sale by the Supt. of Docs., U.S. Govt Print. Off.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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side plates,larger and more spinose ramus of uropod 3, fewer lateral spines onthe telson, and smaller size. Largest female, 8.25 mm; male unknown. Female (holotype).—Antenna 1 about 50 percent as long as body,about twice as long as antenna 2; primary flagellum with 17 segments.Antenna 2, flagellum of 6 segments. Palpal segment 3 of mandiblerather stout, with 6 or 7 long setae; palpal segment 2 with about6 setae. Maxilla 1, inner plate with 8 plumose setae apically.Maxilla 2, inner plate with 8 long, obhquely placed, plumose setae.MaxiUiped, outer plate reaching beyond apex of 1st palpal segment.Inner lobes of lower lip small. Gnathopod 1: propod palmar margin slightly concave, oblique,armed with a double row of about 9 spine teeth; posterior angle with4 large, unequal spines on outside, 5 smaller spines on mside; posteriormargin without setae; lateral setae few in number, mostly singlyinserted; dactyl claw long. Gnathopod 2: propod palmar margin SUBTERRANEAN AMPHIPOD STYGONECTES 41
Text Appearing After Image:
Figure S.—Stygonedes conradi, new species. Female holotype (8.25 mm), Breathing Cave,Va.: a, coxal plate of pereopod 3; b-d, pereopods 4,5,7; e,f, antennae 1,2; g,h, uropods1,2; i,j, 3rd uropods; k, abdominal side plates; l,m, gnathopods 1,2; n, telson. 42 U.S. NATIONAL MUSEUM BULLETIN 259 slightly concave, armed with a double row of 10 spine teeth; posteriorangle with 1 large spine on outside, 4 smaller spines on inside; posteriormargin with 4 sets of setae; lateral setae in transverse rows, mostlysingly inserted; claw of dactyl long. Coxal plate of pereopods 2 and 3 with about 8 marginal setae each; that of pereopod 4 with 12 mar-ginal setae. Pereopod 7 about equal in length to pereopod 6, about30 percent longer than pereopod 5. Bases of pereopods 5-7 similarto those of S. gracilipes. Dactyls of pereopods 5-7 about 35 percentas long as corresponding propods. Coxal gills absent on 7th pereo-pods; all other gills present. Abdominal side plates: posterior margins convex, with 1 setae

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