. New Mallophaga, 3. Comprising: Mallophaga from birds of Panama, Baja California and Alaska . .••.c-!.v> >„\-,a .■^.: LHTf SSTTTUS I ciAPHRa, :ad . LI CI. V a L VI (Kelldgg a Chapman] Plate iA. MV?r »£JXA£ THE ANATOMY OF THE MALLOPHAGA. {With Plates X to XVII.)UY E. SNODGKASS. The earliest work on tlie aiiiitoiuy of the Mallophat^ais that of Nitzsoh. His results are coiiii^risecl in liisown announcement of his work, Darstellung derFaniilien und Gattungen dor Thierinsekten () als Prodronuis einer Xaturgeschichte dersel-ben, publislied in


. New Mallophaga, 3. Comprising: Mallophaga from birds of Panama, Baja California and Alaska . .••.c-!.v> >„\-,a .■^.: LHTf SSTTTUS I ciAPHRa, :ad . LI CI. V a L VI (Kelldgg a Chapman] Plate iA. MV?r »£JXA£ THE ANATOMY OF THE MALLOPHAGA. {With Plates X to XVII.)UY E. SNODGKASS. The earliest work on tlie aiiiitoiuy of the Mallophat^ais that of Nitzsoh. His results are coiiii^risecl in liisown announcement of his work, Darstellung derFaniilien und Gattungen dor Thierinsekten () als Prodronuis einer Xaturgeschichte dersel-ben, publislied in tlio third volume of Germar andZinkens Magazin fiir die Entomologie, 1818, andin Giebels Iiisecta Epizoa. die auf Saugethierenund Vogeln schmarotzenden Insecten, nach Chr. Naehlass bearbeitet, published in of tho^e works are chietiy systematic, but thelarger groups are separated on anatomical first purely anatomical paper is one by Wedlin 1855, Ueber das Herz von Mcnojton paper is limited to a single organ. The next, byKramer, Beitnige zur Anatomic und Physiologic derGattung iVt/7oy)/(/H8 (Nitzsch), published in Zcitschriftfiir Zoologie in 1809, includes all


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