Information om | Engelska ordet UROPODS

Exempel på hur man kan använda UROPODS i en mening

• Members of the family Mysidae are distinguished from other mysids by the fact that the first pereopod (walking leg) has a well-developed exopod (outer branch), the carpopropodus of the endopod (inner branch) of the 3rd to 8th pereopods is divided into sub-segments and there are statocysts on the endopod of the uropods (posterior appendages).
• In arthropods, an appendage refers to any of the homologous body parts that may extend from a body segment, including antennae, mouthparts (including mandibles, maxillae and maxillipeds), gills, locomotor legs (pereiopods for walking, and pleopods for swimming), sexual organs (gonopods), and parts of the tail (uropods).
• Mantis shrimp of the genus Odontodactylus can not only detect circular polarisation of light, but can also detect polarised light reflecting off their telson and uropods.
• The family Armadillidiidae is differentiated from other woodlouse families by the two-segmented nature of the antennal flagellum, by the form of the uropods, and by the ability to roll into a ball.
• The uropods, antenna-like structures at the back of the specimen, are flattened out and spearlike, and extend beyond the last exoskeletal plate.
• Features distinguishing lophogastrids from the mysids include the absence of statocysts in their uropods, and the presence of well-developed biramous pleopods on their abdomens.
• Infected shrimps show gross signs including soft shells and flaccid bodies, black or darkened gills, dark edges of the pleopods, and uropods, and an atrophied hepatopancreas that is whitish instead of orange or tan as is usual.
• For defence, gribbles can jam themselves within their burrows using their uropods and block the tunnel with their rear disc-shaped segment, the pleotelson.
• Valviferans are distinguished, however, by the flat, valve-like uropods which hinge laterally and fold inward beneath the rear part of their bodies, covering the pleopods.
• The third maxillipeds always have exopods (outer branches), and there are endopods (inner branches) on one or two segments of the uropods.
• In 1918, Wilhelm Haack erected a monotypic family Archaeoniscidae and claimed that it is distinct from the suborder Oniscidea based on the large pleotelson, the shapes of antennulae, antennae and uropods.
• Calman coined the term caridoid facies for the common eumalacostracan (shrimp-like) features; the most important of these is the constant number of segments in each tagma: members of this class have five segments in the cephalon, eight thoracic segments (thoracomeres) and six segments in the pleon and possess a telson, which forms a characteristic tail fan when the uropods are present.
• Both the endopodite and the exopodite of the females' uropods are two-segmented, while males have a three-segmented endopodite.
• The uropods have similarly sized exopods and endopods, fringed with long hairs; the exopod is divided towards the end by a jointed diaeresis.
• The pleon ends in a telson flanked by a pair of uropods, which are similar in form to the pereiopods, and aid in digging.
• Petalophthalmidans are distinguished from other mysids by the fact that the first pereopod (walking leg) does not have an exopod (outer branch), the carpopropodus of the endopod (inner branch) of the 3rd to 8th pereopods are not fused and there is no statocyst on the endopod of the uropods (posterior appendage).
• The two groups are differentiated by the characteristics of the species' second antenna; first gnathopod, an appendage modified for feeding; uropods and pereopods.
• Both the endopods and exopods of the uropods have weak ridges, the latter additionally having a small spine on the outer margin.

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