Cumacea

(redirected from Cumacean)
Also found in: Dictionary, Wikipedia.

Cumacea

[kyü′mās·ē·ə]
(invertebrate zoology)
An order of the class Crustacea characterized by a well-developed carapace which is fused dorsally with at least the first three thoracic somites and overhangs the sides.

Cumacea

 

an order of invertebrates of the subclass of higher crustaceans. The body measures 1–18 mm long (only a few species reaching 35 mm). There are two divisions, the cephalothorax and the narrow abdomen. The cephalothoracic carapace covers the three front thoracic somites and is fused with them. There is a single eye. Of the three pairs of maxillipeds, the first bears complexly constructed gills. In the female, the second and third pairs of maxillipeds have plates that form the brood pouch. The five free thoracic somites each have a pair of two-jointed limbs. Abdominal appendages are found only on the male. There are about 600 species, living primarily in the seas. They serve as food for fish. Members of this order have been acclimatized to some reservoirs (for example, Pseudocuma cercaroides is found in the Dnieper Reservoir).

Mentioned in ?
References in periodicals archive ?
The rest of taxa: nauplii larvae, gastrotrichs, kinorhynchs, polychaetes, oligochaetes and cumaceans exhibited low relative abundances (below 1%) and scarce taxonomic representation.
The three types were ~30 copepods (100-400 [micro]m), 2 cumaceans (~600 [micro]m), and 2 zoea larvae (~1 mm).
2003) and recent reports of whales feeding year-round on epibenthic cumaceans (Diastylidae) offshore near Kodiak (Moore et al.
maclovinus was predominantly feeding on crustaceans, since amphipods, isopods, cumaceans, and decapods were the most abundant prey found in individuals from 61 to 240mm TL and from 180 to 700mm TL.
are different polychaetes and mollusks, and a whole gamut of smaller organisms (copepods, cumaceans, nematodes).
Ostracods, copepods, and cumaceans were found within stomachs from L.
littoralis) in the Gulf of Mexico and found that southern kingfish most frequently consume bivalve siphons and cumaceans, followed by mysids, polychaetes, brachyurans, and gammarid amphipods.