File:Bulletin - United States National Museum (1967) (14781273491).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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rgest males, 12.00 mm; largest females, 9.75 mm. Generally corresponding to the redescription and figure by Kunkel(1918) with the following additions and modifications: Male.—^Antenna 1 up to 50 percent as long as body, with about 22primary flagellar segments. Antenna 2 large, longer than antenna 1in larger males; flagellum with 12 to 14 segments, penultimate segmentlarge, arcuate, much longer than terminal segment. Mouth partscorresponding to those figured for S. t. j^otomacus (fig. 13) and asfollows: Mandibular palpal segment 3 with 6 or 7 long setae, segment2 with 6 to 8 setae. Maxilla 1, inner plate with about 4 apical, plumosesetae. Maxilla 2, inner plate with 2 to 4 long, obliquely placed,plumose setae. Maxilliped, inner plate with 3 or 4 (usually 3) thick,apical spines. Inner lobes of lower lip rather broad. Gnathopod 1: propod palmar margin rather deeply concave, armedwith a double row of 8 or 9 spine teeth; posterior angle with 1 large SUBTERRANEAN AlVIPHIPOD STYGONECTES 59
Text Appearing After Image:
Figure 12.—Stygonedes t. tenuis (Smith), new status. Male (9.00 mm), well near Trappe,Md.: a,b, gnathopods 1,2; c-e, pereopods 4,5,7;/, pleopod 1; g, abdominal side plates;h-j, uropods 1,2,3; k, telson. Female (9.75 mm), same locality: l,m, gnathopods 1,2;n, coxal plate of pereopod 3; o, pereopod 4; p, telson, q,r, antennae 1,2; s-u, uropods,1,2,3. Male, New York Botanical Gardens, N.Y.: v,w, antennae 1,2. 242-803—67- 60 U.S. NATIONAL MUSEUM BULLETIN 2 59 spine and 4 small spines on outside, 5 small spines on inside; posteriormargin relatively short, with 3 sets of setae; lateral setae in transverserows, singly inserted. Gnathopod 2: propod palmar margin lessconcave, armed with a double row of 5 or 6 spine teeth; posteriorangle with 1 large spine and 5 smaller spines on outside, 6 smallspines on inside; posterior margin with 6 sets of setae; lateral setaehi transverse rows, mostly singly inserted; coxal plate rather broadlyroimded anteroventrally, with 6 or 7 marginal setae. Coxal

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