Results 101 to 110 of about 227 (130)

Phylogenetic analysis of Placobdella (Hirudinea: Rhynchobdellida: Glossiphoniidae) with consideration of COI variation

open access: yesMolecular Phylogenetics and Evolution, 2017
Placobdella is a genus of blood-feeding leeches in the family Glossiphoniidae. Historically, species of Placobdella have posed difficulty for systematists owing to a lack of informative morphological characters and the preponderance of inadequate or incomplete species descriptions. Here, we conduct a phylogenetic analysis of 55 individuals representing
Danielle De Carle   +2 more
exaly   +5 more sources

Worms that suck: Phylogenetic analysis of Hirudinea solidifies the position of Acanthobdellida and necessitates the dissolution of Rhynchobdellida

open access: yesMolecular Phylogenetics and Evolution, 2018
Annelids possessing a posterior sucker and a fixed number of somites - most famously leeches (Hirudinida), but also crayfish worms (Branchiobdellida) and salmonid parasites (Acanthobdellida) - form a clade; however, determining the relationships between these orders has proven challenging. Here, we compile the largest molecular phylogenetic dataset yet
Michael Tessler   +2 more
exaly   +4 more sources

Actinobdella inequiannulata (Annelida: Hirudinida: Rhynchobdellida: Glossiphoniidae) from White Crappie, Pomoxis annularis (Perciformes: Centrarchidae), in Arkansas, U.S.A

open access: yesComparative Parasitology, 2011
One of 4 (25%) white crappie, Pomoxis annularis, specimens from the Ouachita River, Dallas County, Arkansas, was found to be infested with 8 glossiphoniid leeches, Actinobdella inequiannulata Moore, 1901. Leeches were removed from within the operculum on gills and gill arches.
Chris T Mcallister, William E Moser
exaly   +3 more sources
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Placobdella cryptobranchii (Rhynchobdellida: Glossiphoniidae) on Cryptobranchus alleganiensis bishopi (Ozark Hellbender) in Arkansas and Missouri

Comparative Parasitology, 2008
Placobdella ?1 cryptobranchii is a rarely collected leech of the Ozark hellbender (Cryptobranchus alleganiensis bishopi) in northern Arkansas and southern Missouri, U.S.A. Between October 2002 and August 2005, 58 hellbenders were examined from Eleven Point River (Randolph Co., Arkansas and Oregon Co., Missouri), the north fork of the White River (Ozark
William E Moser, Stanley E Trauth
exaly   +2 more sources

Structure of the germinal vesicle during oogenesis in leechGlossiphonia heteroclita (Annelida, Hirudinea, Rhynchobdellida)

Journal of Morphology, 2005
Oogenesis in the glossiphoniid leech Glossiphonia heteroclita (Hirudinea, Rhynchobdellida) is nutrimental, i.e., the growing oocyte is supported by specialized germline cells, the nurse cells. The main function of the nurse cells is to provide oocytes with cell organelles and RNAs (mainly rRNA).
Piotr Swiatek
exaly   +3 more sources

Oogenesis in four species of Piscicola (Hirudinea, Rhynchobdellida)

Journal of Morphology, 2007
AbstractPiscicola has a pair of elongated sac‐shaped ovaries. Inside the ovaries are numerous small somatic cells and regularly spherical egg follicles. Each follicle is composed of three types of cells: many (average 30) germ cells (cystocytes) interconnected by intercellular bridges in clones (cysts), one intermediate cell, and three to five outer ...
Aleksandra, Spałek-Wołczyńska   +3 more
openaire   +2 more sources

A Report of Ectoparasite Piscicola geometra Linnaeus, 1761 Hirudinea: Rhynchobdellida on Roach Rutilus rutilus Linnaeus, 1758 from Uluabat Lake

open access: yesTurkiye Parazitolojii Dergisi, 2011
An ectoparasite leech Piscicola geometra were found on female roach (Rutilus rutilus) between the anus and lateral line during the biometric measurements for the purpose of monitoring the fish population in Uluabat Lake. P. geometra was previously reported on Carassius gibelio and Tinca tinca from Lake Uluabat.
Mustafa Çeylan, Yunus Ömer Boyaci
exaly   +3 more sources

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