Journal ArticleDOI
A Method for Studying the External Anatomy of Copepods
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In this article, it was shown that lactic acid is the best clearing agent for the preparation of temporary mounts of whole or dissected copepods, and that obese forms or specimens with a thin cuticle are best transferred through mixtures of the medium in which they have been kept and Lactic acid.Abstract:
We have found lactic acid to be the best clearing agent for the preparation of temporary mounts of whole or dissected copepods. Fresh, alcoholic, or formalin fixed specimens become cleared within a few minutes to some hours, depending upon their size and the duration of preservation. When first placed in the un diluted acid, the copepods may become somewhat contracted, but soon regain, and thereafter retain, their normal size and shape. In order to avoid rupture, obese forms or specimens with a thin cuticle are best transferred through mixtures of the medium in which they have been kept and lactic acid. Since the latter is dense, layering the fluids in a small dish is usually satisfactory: the original medium will evaporate slowly, leaving the speci mens in the acid. Fluids with appreciable concentrations of dissolved salts, however, should be avoided, preferably by transferring the specimens first either to alcohol or to fresh-water.read more
Citations
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Journal ArticleDOI
Cladistic analysis of the morphological characters of Pseudocharopinus Kabata, 1964 and keys to the species of Pseudocharopinus and Charopinus Krøyer, 1863 based on the morphology of adult females.
TL;DR: In an attempt to estimate the evolutionary relationships among Pseudocharopinus spp.
Journal ArticleDOI
Redescription of Tracheliastes gigas Richiardi, 1881 from the type-specimens, and its relegation to synonymy with Pseudotracheliastes stellatus (Mayor, 1824) (Copepoda: Siphonostomatoida: Lernaeopodidae)
TL;DR: Morphological features of T. gigas suggest that it is a junior synonym of Pseudotracheliastes stellatus (Mayor, 1824), and some new details regarding the host (“Acipenser”), locality and collector (Sänger) were revealed.
Journal ArticleDOI
A new species of Thysanote Kroyer, 1863 (Copepoda: Siphonostomatoida: Lernaeopodidae), a fish parasite from Thailand
TL;DR: A new species of the Lernaeopodidae is described, collected from the spotted scat off Thailand, with the primary synapomorphy supporting the genus is the presence of maxillary processes and posterior processes of the female.
Journal ArticleDOI
Chondracanthid Copepods Parasitic on Flatfishes of Taiwan
TL;DR: Six species of Chondracanthidae (Copepoda, Poecilostomatoida) parasitic on flatfishes of Taiwan are reported, and all of them are parasitic on the host's gill filaments.
References
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Journal ArticleDOI
Preparation of Copepod Mounts for Taxonomic Work and for Permanent Collections
TL;DR: An investigation of the microfauna of the shore at Whitstable, Kent, it was necessary to examine and to identify the many Harpacticoid copepods which occurred there.