File:Bulletin - United States National Museum (1967) (14781271811).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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irginia (no other data on label), W.Wallace, Oct. 18, 1921. Maryland.—Montgomery Co.: well on MineshoeIsland in Potomac River, C. R. Shoemaker, May 17, 1931; Frederick Co.:artesian well on south side of Sugarloaf Mt., T. Ulke, Apr. 17, 1938; Howard Co.:EUiott City (habitat not given on label), G. N. Ackerman, June 1938. Pennsyl-vania.—Chester Co.: small, walled spring, 1 mile S of New Centerville, L. 48 U.S. NATIONAL MUSEUM BULLETIN 259 Hubricht, Mar. 13, 1938 (LH, in part); Lancaster Co.: seep in limestone outcropin Gables Woods near Lancaster, J. W. Price, Mar. 29, 1936, Apr. 9, 1936, andMar. 23, 1937; Pequea Silver Mines, 5 miles S of Lancaster, J. W. Price, May 12,1947; Refton Cave, at Refton, J. W. Price, 8 collections between 1935 and 1941;Refton Cave, K. Dearolf, Jan. 9, 1937. Diagnosis.—Distinguished by the large, elongate 1st gnathopodalpropod which is up to twice the size of 2nd propod; distal excavationin palmar margin of propod of gnathopod 1 in large males; ventraUy
Text Appearing After Image:
Figure 10.—Siygonedes pizzinii (Shoemaker). Male (13.50 mm), Reftons Cave, Pa.: a.i,antennae 1,2; c,d, pereopods 5,6; e,f, uropods 1,2. SUBTERRANEAN AMPHIPOD STYGONECTES 49 extended distoanterior lobe of 7th pereopod basis in sexually maturemales; and by the long, laterally spined telson. Largest males,18.75 mm; largest females, 15.75 mm. Corresponding closely to the descriptions by Shoemaker (1938,1942a) with the following additions and modifications: Male.—Antenna 1 only 15 percent longer than antenna 2 in verylarge specimens. Gnathopod 1: palmar margin of propod generallystraight, obUque, distally with a small, armed notch or excavation andarmed throughout with a double row of 10 or 11 spine teeth; posteriorangle with 2 large spines and 3 or 4 small spines on outside, about5 small spines on inside; posterior margin relatively short and with4 or 5 sets of setae; lateral setae in transverse rows, doubly and singlyinserted. Gnathopod 2: propod palmar margin relatively short,straig

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