Browsing by Author "Borda, Elizabeth."
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Item Leech collections from Chile including two new species of Helobdella (Annelida, Hirudinida). American Museum novitates ; no. 3457(New York, NY : American Museum of Natural History, 2004) Siddall, Mark Edward, 1966-; Borda, Elizabeth.Twelve species of leeches were collected from Reserva Nacional Yerba Loca, near Santiago, IX Región de la Araucania and X Región de los Lagos, Chile. Included were representatives of the unusual Chilean taxa Americobdella valdiviana, Mesobdella gemmata, and two species of Patagoniobdella, each of whose phylogenetic placement and classification has been problematic. Eight species of Glossiphoniidae were found, including two new species in the genus Helobdella. Helobdella wodzickiorum, n.sp. possesses a large, prominent atrium and male sperm ducts extending to somite XXIII, whereas Helobdella pichipanan, n.sp. has micromorphic male genitalia, a weakly developed atrium, and ejaculatory ducts that extend only to XII/XIII. The phylogenetic positions of A. valdiviana, M. gemmata, and Patagoniobdella species are discussed.Item A revision of the Malagabdellinae (Arhynchobdellida, Domanibdellidae), with a description of a new species, Malagabdella niarchosorum, from Ranomafana National Park, Madagascar ; American Museum novitates, no. 3531(New York, NY : American Museum of Natural History, 2006) Borda, Elizabeth.This study provides the first photo-documentation of some of the sanguivorous terrestrial leeches of Madagascar, including the characterization of the male and female reproductive systems that were previously considered to be 'monotonous' in land leeches. Three species of Malagabdella are redescribed and one new haemadipsoid species, Malagabdella niarchosorum, n.sp., is described. M. niarchosorum, n.sp. is the second species described from Madagascar that possesses four complete annuli between the gonopores. The only other Malagasy leech with these same characteristics, Malagabdella dussumieri (Blanchard, 1917), has an unknown type locality, and the examination of the type specimen reveals characteristics suggesting that this leech was not from Madagascar. A revised and restricted provisional key for the Malagabdellinae is provided.