File:Bulletin - United States National Museum (1967) (14782066784).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

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
nnsylvania and in the Albany, Schoharie County area ofeast-central New York this species is known only from cave waters.In central New York records are from wells and springs occurring inlower Paleozoic sandstones and limestones (but mostly Devoniansandstones). Marginal populations in eastern Pennsylvania areknown mostly from seeps and springs developed in lower Paleozoicsandstones and limestones. In caves, S. allegheniensis is usuallyfound under rocks in small streams or in shallow pools with siltbottoms. In John Friends Cave this species has been collected on two 70 U.S. NATIONAL MUSEUM BULLETIN 259 different occasions associated with S. emarginatus, the latter species,however, being much less abundant. Collections haA^e been made during all months of the year except inSeptember, October, and January, but ovigerous females were presentonly in collections made between March and August. Samples con-tained 25 ovigerous females that ranged in size from 5.25 mm to CD UJ < 3 St Antenna
Text Appearing After Image:
4 12 13 14 5 6 7 8 9 10 11 STANDARD LENGTH, MM Figure 16.—Relation of antennal length to standard length (body length excluding appen-dages) in Stygonedes allegkeniensis from seeps, springs, and wells in Herkimer andOnondaga Counties, N.Y. (Antenna 1 (solid circles), antenna 2 (xs). Regression linecalculated by the least squares method.) SUBTERRANEAN AMPHIPOD STYGONECTES 71 9.00 mm (Mean = 6.98, S.D. = 0.97). Egg production is simimarizedas follows: N = 25, Eange=3-10 eggs, Mean = 6.60, S.D. = 2.G0,C.V. = 30.0%. Remarks.—The collections from Johnson (Upper) Cave, CentreCo., and Barton and Dulany Caves, Fayette Co., referred to S. pizziniiby Shoemaker (1938, 1942a); and the records for S. pizzinii fromBarton and Dulany Caves and Veiled Lady Cave, Centre Co., givenby Dearolf (1941) undoubtedly belong to the species described above.The Pennsylvania localities for Synpleonia hayi (e.g.. Veiled LadyCave) and Synpleonia species (e.g.. Barton and Dulany Caves) listedby Dearolf (1941), an

Note About Images