Results 51 to 60 of about 103 (82)
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Gamete Research, 1988
AbstractThe mature sperm of Dina lineata is of the modified type. The sperm are 48 μm long and 0.3 μm wide. The sperm are filiform and helicoidal cells with a distinct head, a midpiece, and a tail. There are two distinct regions in the head: the acrosome and the posterior acrosome, each with its own characteristic morphology.
S, Bonet, M, Molinas
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AbstractThe mature sperm of Dina lineata is of the modified type. The sperm are 48 μm long and 0.3 μm wide. The sperm are filiform and helicoidal cells with a distinct head, a midpiece, and a tail. There are two distinct regions in the head: the acrosome and the posterior acrosome, each with its own characteristic morphology.
S, Bonet, M, Molinas
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Functional Ecology, 1996
1. The hypotheses tested were that foraging behavioural responses (number of meals consumed, the number of encounters with prey and feeding time) and activity (swimming time) of the freshwater predatory leech Nephelopsis obscura were higher in the dark than in the light, increased with the size of the predator and increased with the length of the ...
R. W. Davies, E. Dratnal, L. R. Linton
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1. The hypotheses tested were that foraging behavioural responses (number of meals consumed, the number of encounters with prey and feeding time) and activity (swimming time) of the freshwater predatory leech Nephelopsis obscura were higher in the dark than in the light, increased with the size of the predator and increased with the length of the ...
R. W. Davies, E. Dratnal, L. R. Linton
exaly +2 more sources
Mitochondrial DNA Part A, 2014
Erpobdella octoculata (Linnaeus, 1758; Hirudinea: Arhynchobdellida: Erpobdellidae) is a very common and morphologically variable macrophagous predators of aquatic invertebrates. Here we determined the complete mitochondrial DNA (mtDNA) sequence of this species, as the first representative of the suborder Erpobdelliformes.
Yun-Ling, Xu, Jing, Nie
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Erpobdella octoculata (Linnaeus, 1758; Hirudinea: Arhynchobdellida: Erpobdellidae) is a very common and morphologically variable macrophagous predators of aquatic invertebrates. Here we determined the complete mitochondrial DNA (mtDNA) sequence of this species, as the first representative of the suborder Erpobdelliformes.
Yun-Ling, Xu, Jing, Nie
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The diet of Erpobdella octoculata (Hirudinea: Erpobdellidae) in two Danish lowland streams
Fundamental and Applied Limnology, 1997The diet of leeches and the effect of prey size on feeding success were examined using gut analyses of Erpobdella octoculata from two Danish lowland streams. Five weight (size) classes of leeches were examined. For each insect prey found in the guts the width of the head capsule was measured.
Toman, Mihael, Dall, Peter Chr.
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A cave leech (Hirudinea, Erpobdellidae) from Croatia with unique morphological features
Zoologica Scripta, 2001Croatobranchus mestrovi is a troglobitic leech from deep shaft‐like caves in the Velebit Mountain, Dinaric karst, Croatia, living in cold (4–6 °C) water. Its oral sucker extends to form four pairs of triangular tentacles, each with about five finger‐like papillae, but widening into a marginally crenulated disc when attached to a substrate.
Sket, Boris +5 more
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Phylogeny of the leech family Erpobdellidae (Hirudinida : Oligochaeta)
Invertebrate Taxonomy, 2002The phylogenetic relationships of the family Erpobdellidae, a group of non-sanguivorous leeches useful as bioindicators, were investigated with the combined use of morphological characters, mitochondrial cytochrome c oxidase subunit I, mitochondrial 12S rDNA and nuclear 18S rDNA.
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On the distribution of Dina stschegolewi (Hirudinida: Erpobdellidae) in the South Caucasus
Zoology in the Middle East, 2017Dina stschegolewi is an erpobdellid leech that was described by Lukin and Epshtein (1960) from the Crimean Peninsula.
Andrii Khomenko +7 more
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Mites (Acarina: Astigmata) associated with adult freshwater leeches (Hirudinea: Erpobdellidae)
Journal of Natural History, 1997Two species of mites (Astigmata: Acarina) were found crawling on the integument of cultured Nephelopsis obscura, a common North American leech. This is the first record of an association between mites and adult annelids. Histiostoma anguillarum (Histiostomatidae), previously described as an associate of farmed freshwater eels, were recorded in ...
Proctor, Heather, Gray, H., Oconnor, B.
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Journal of Invertebrate Pathology, 1988
Abstract The ultrastructure of neurons in the leech Nephelopsis obscura exposed to anoxic or hyperoxic conditions in the laboratory were studied and compared with neurons in normoxic control animals. Oxygen stress alters the shape and structure of membranous organelles, including mitochondria, endoplasmic reticulum, and Golgi complex, and also ...
Ram N. Singhal +2 more
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Abstract The ultrastructure of neurons in the leech Nephelopsis obscura exposed to anoxic or hyperoxic conditions in the laboratory were studied and compared with neurons in normoxic control animals. Oxygen stress alters the shape and structure of membranous organelles, including mitochondria, endoplasmic reticulum, and Golgi complex, and also ...
Ram N. Singhal +2 more
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Species delimitation recovers undescribed Erpobdellidae (Annelida: Hirudinea) from USA and Türkiye
ZootaxaErpobdellid leeches are morphologically similar to each other and thus cause confusion in taxonomic identification. In particular, annuli, colour and eye patterns are very close across species which creates difficulties in external morphological resolution.
NAIM SAGLAM +2 more
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