Copepods (Crustacea, Maxillopoda) from shallow reservoirs

A New Tantulocaridan ( Crustacea : Maxillopoda ) Parasitic on Calanoid , Harpacticoid and Cyclopoid Copepods

Several life-cycle stages of a new genus of Tantulocarida (Crustacea: Maxillopoda), parasitic on three orders of copepods, are described from Okinawa, South Japan. This is the first record of a tantulocaridan on cyclopoid and calanoid hosts. Nipponotantulus heteroxenus n. gen., n. sp. was also found on at least four families of harpacticoid copepods (including both interstitial and epibenthic s...

Deep phylogeny and character evolution in Thecostraca (Crustacea: Maxillopoda).

The thecostracans include the Facetotecta, Ascothoracida, and Cirripedia and show great diversity in both morphology and biology. This makes them ideal models for studying evolutionary adaptations of the larval and adult body-plan, lifestyle, and reproduction. Surprisingly, despite all the work published since Darwin's seminal monographs, few studies have tested evolutionary hypotheses about Th...

Chemoreceptors and feeding in calanoid copepods (Arthropoda: Crustacea).

Ultrastructural studies of the mouthparts of the calanoid copepod Diaptomus pallidus have revealed the presence of numerous chemoreceptors, and the apparent absence of mechanoreceptors. The setae contain no muscles, and the setules are noncellular extensions of their chitin wall. This allows a new insight into the selective feeding of zooplankters.

Meningeal-like organization of neural tissues in calanoid copepods (Crustacea).

Meninges, the connective tissue of the vertebrate central nervous system (CNS), have not been recognized in invertebrates. We describe the ultrastructure of the adult brain, antennules, and cord in five marine copepods: Calanus finmarchicus, Gaussia princeps, Bestiolina similis, Labidocera madurae, and Euchaeta rimana. In all of these locations we identified cell types with characteristics of t...

Classification of flow patterns in rectangular shallow reservoirs