Gertsch, Willis John, 1906-Archer, Allan Frost, 1908-2005-10-062005-10-061942http://hdl.handle.net/2246/475416 p. : ill. ; 24 cm.Includes bibliographical references.3107154 bytesapplication/pdfen-USQL1 .A436 no.1171, 1942Cobweb weavers -- United StatesSpiders -- United StatesArachnida -- United StatesDescriptions of new American Theridiidae. American Museum novitates ; no. 1171text