Small concretions and specimens embedded in the matrix have yielded a new Pliocene crustacean fauna from the Kowai Formation near Makikihi, South Canterbury, New Zealand. The fauna is relatively robust, with five identifiable taxa. Three new species are named herein, including the isopod Cirolana makikihi and the decapods Upogebia kowai and Austrohelice manneringi. one new genus and species of ...

Synopsis. The stomatogastric nervous system of decapod crustaceans is an ideal system for the study of the processes underlying the generation of rhythmic movements by the nervous system. In this chapter we review recent work that uses mathematical analyses and computer simulations to understand: 1) the role of individual currents in controlling the activity of neurons, and 2) the effects of el...

Acetylcholine has been demonstrated to speed the heart of several of the decapod crustacea (Welsh, 1939 a and b; Davenport, Loomis and Opler, 1940 and Davenport, 1941), the grasshopper (Hamilton, 1939), and LiMulus (Garrey, 1941). Is this reaction, which may be indicative of a neurogenic heart, a general characteristic of the arthropods? The pharmacology of the heart of the cladoceran, Daphnia,...

Henri Filhol authored thirteen publications that established new names for decapod crustaceans in 1884 and 1885. The accurate dates of these publications are determined utilising notices of Filhol's publications in contemporary journals and library date-stamps. A checklist of the names for the Decapoda established by Filhol and their current identities is presented. Labophrys Filhol, 1885, and ...

The concept of sentience concerns the capacity to have feelings. There is evidence for sophisticated cognitive concepts and for both positive and negative feelings in a wide range of nonhuman animals. All vertebrates, including fish, as well as some molluscs and decapod crustaceans have pain systems. Most people today consider that their moral obligations extend to many animal species. Moral de...

Crabs are decapod crustaceans living in oceans, freshwater and on land. They are omnivorous scavengers and carnivores. Many of them are edible with tremendous aquaculture potentials. Crabbing in recent years increased rapidly due to nutritive value, and their need for local and international market. Different kinds of gears used for capture are sometimes baited with edible stuff. Catch could be...

Corrigenda The 18S ribosomal RNA gene of a crustacean decapod Oedignathus inermis: a comparison with Artemia salina gene It is stated in this paper that the ratio of transition/transversion between the two above mentioned species is 1.03. The authors wish to point out that this figure should be 1.26. It should be noted that in the description of the PCR-RC analysis of the transformant of the 35...

The concept of sentience concerns the capacity to have feelings. There is evidence for sophisticated cognitive concepts and for both positive and negative feelings in a wide range of nonhuman animals. All vertebrates, including fish, as well as some molluscs and decapod crustaceans have pain systems. Most people today consider that their moral obligations extend to many animal species. Moral de...

Two specimens representing two hippolytid genera were sampled recently from the Coral Seamount, southwest Indian Ocean, at 732 m water depth. Lebbeus ketophilos sp. nov. and Eualus oreios sp. nov. are described and illustrated and their morphologies are compared with those of previously described species. The new species are closest in morphology to L. indicus Holthuis, 1947 and E. kinzeri Tief...

The entire mitochondrial gene order of the crustacean Pagurus longicarpus was determined by sequencing all but approximately 300 bp of the mitochondrial genome. We report the first major gene rearrangements found in the clade including Crustacea and Insecta. At least eight mitochondrial gene rearrangements have dramatically altered the gene order of the hermit crab P. longicarpus relative to th...