(Linnaeus, 1767)

Description:
Body smooth or with only few spines. Peduncle of antenna 1 usually with numerous setules. Ratio of total length to length of the basis of gnathopod 2 usually less than 13.0, inner surface of gnathopod 2 with a small tooth adjacent to the poison tooth.
Mouthparts typical of genus, right lacinia mobilis 5-toothed.
Propodus of gnathopod 1 with 2 proximal grasping spines, grasping margin of dactylus and propodus serrate. Palm of propodus of gnathopod 2 with proximal a poison tooth and a small tooth on the inner surface, distally with a small tooth, a notch and a rectangular projection, anterodistal margin occasionally with a projection; basis short and robust.
Gills usually elliptical, occasionally oval and inflated.
Propodus of pereiopods 5-7 with a pair of proximal grasping spines.

Habitat:
C. linearis does not appear to be specific in its habitat, having been collected from brown, green and red algae, sea grass, sponges, hydroids, alcyonarians and tunicates. It has been taken from the surface to a depth of several hundred meters.

Distribution:
Siberian Polar Sea; Murman coast; Spitsbergen; Norway to France; British Islands; Faeroe Islands; Iceland; coast of North America; Japan and New Zealand.

Kingdom Animalia
Phylum Arthropoda
Class Crustacea
Subclass Malacostraca
Superorder Peracarida
Order Amphipoda
Suborder Caprellidea
Family Caprellidae
Genus Caprella
Species linearis

Status in World Register of Marine Species

Accepted name: Caprella linearis Linnaeus, 1767

Scientific synonyms and common names

Cancer linearis Linnaeus, 1767
Onisci scolopendroidis Pallas, 1772
Squilla lobata Mülller, 1776
Squilla quadrilobata Abildgaard, 1788
Gammarus quadrilobatus.-Abildgaard, 1789
Cancer (Gammarellus) linearis Herbst, 1793
Cancer linnearis.-Linnaeus, 1800
Caprella punctata Risso, 1816
Caprella laevis Goodsir, 1842
Caprella phasma [not Montagu] Rathke, 1843
Caprella acuminifera [not Leach] Rathke, 1843
Caprella scolopendroides [not Lamarck] Rathke, 1843
Caprella lobata Bate, 1856
Caprella linearis f. gullmarensis Mayer, 1903
Caprella linearis f. distalis Mayer, 1903

Isaac, M.J. & J. Moyse, 1990. Crustacea I: Entomostraca. In: The Marine Fauna of the British Isles and North-West Europe (eds. Hayward and Ryland, 1990). Clarendon Press, Oxford.

Laubitz, D.R., 1972. The Caprellidae (Crustacea, Amphipoda) of Atlantic and Arctic Canada. National Museum of Natural Sciences, Publications in Biological Oceanography, 4.

McCain, J.C., 1968. The Caprellidae (Crustacea: Amphipoda) of the Western North Atlantic. Smithsonian Institution, bulletin, 278.

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