Camallanus emydidius n. sp. (Nematoda: Camallanidae) in Trachemys dorbigni (Duméril & Bibron, 1835) (Testudines: Emydidae) from Southern Brazil

A New Nematode Camallanus Boomkeri Sp. from the Fish, Channa Orientalis (oestiechthyes: Channidaes) in Freshwaters of Panjgur, Balochistan

The present study was conducted to investigate the helminth parasites of fish. During this study a new species of genus Camallanus Railliet and Henry, 1915 (Nematoda: Camallanidae) is described from specimens found in the swim bladder of Channa orientalis Bloch and Schneider, 1801 collected from River Gwarko in Panjgur (Balochistan). This new species Camallanus boomkeri n. sp. differs from othe...

A new slider turtle (Testudines: Emydidae: Deirochelyinae: Trachemys) from the late Hemphillian (late Miocene/early Pliocene) of eastern Tennessee and the evolution of the deirochelyines

Trachemys (Testudines: Emydidae) represents one of the most well-known turtle genera today. The evolution of Trachemys, while being heavily documented with fossil representatives, is not well understood. Numerous fossils from the late Hemphillian Gray Fossil Site (GFS) in northeastern Tennessee help to elucidate its evolution. The fossil Trachemys at the GFS represent a new species. The new tax...

An Analysis of the Changes in the Prevalence of Camallanus Oxycephalus (Nematoda: Camallanidae) in Western Lake Erie

Camallanus tridentatus (Drasche) (Nematoda: Camallanidae): new taxonomically important morphological data.

Camallanus tridentatus is redescribed on the basis of the examination of specimens obtained from the stomach, caeca and intestine of the naturally infected arapaima Arapaima gigas (Schinz) from the Mexiana Island, Amazon River Delta, Brazil. Data on the surface morphology of adults inferred from confocal laser scanning and scanning electron microscopical observations are also provided. The stud...

Brief Note: Comparative Morphology of the First-Stage Larvae of Two Species of Philometra (Nematoda: Philometridae) and One Species of Camallanus (Nematoda: Camallanidae) From Lake Erie Fishes

Previous descriptions of larval philometrids and camallanids are based on observation from light microscopy. First-stage larvae of Camallanus oxycephalus, Philometra cylindracea, and Philometra sp. were examined by electron microscopy to determine whether differences seen in adult structure also occur in the larvae, allowing for identification of larval stages in the intermediate and definitive...