pecten


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Related to pecten: Pecten pubis

pecten:

see scallopscallop
or pecten,
marine bivalve mollusk. Like its close relative the oyster, the scallop has no siphons, the mantle being completely open, but it differs from other mollusks in that both mantle edges have a row of steely blue "eyes" (which use a mirror consisting of
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.

Pecten

 

a genus of sea invertebrates, class Bivalvia. The shell is round with a straight hinge edge. The surface is covered with radial ribs fanning out from the top. The shell valves close through contraction of a single strong muscle. Young Pecten attach to seaweed or other underwater objects by means of a byssus, but mature Pecten lie freely on the bottom. Pecten are able to “leap” by forcibly ejecting a stream of water from the shell. Some types have commercial value since the muscle is used for food. The genus Pecten comprises dozens of species and has been divided into several smaller genera in recent years. P. maximus and Flexopecten glaber inhabit the Black Sea. Mizuhopecten jessoensis is found in the Seas of Japan and Okhotsk; its diameters reach 17 cm. Chlamys islandicus(up to 7.7 cm long and 8 cm high) and Propeamussium groenlandicum(up to 3.4 cm long) are found in northern seas.

O. A. SKARLATO

pecten

[′pek·tən]
(zoology)
Any of various comblike structures possessed by animals.
References in periodicals archive ?
a JV owned 50% by the SPC and 50% by Shell, Pecten and Petro-Canada, produces less than 2,000 b/d of heavy 24.
Because experimental Pecten fumatus and Crassadoma gigantea had a screw attached to their lower valve, another sample of scallops was used for this test.
The pecten and the central fundus were the most easily identified areas on direct ophthalmoscopy.
Pecten maximus was chosen in part because it is a simultaneous hermaphrodite, thus allowing investigation of both male and female components within the same individual under identical experimental conditions.
This seasonal pattern is similar to that of other pectinids such as the Pecten maximus (Robert & Gerard 1999, Le Pennec et al.
The anterior segment changes made fundic detail less distinct; however, the margins of the pecten were particularly indistinct and the pecten appeared engorged.
The main structural differences were observed in the lateral palatal brushes, comb scales, and pecten.
The effect of monospecific algal diets on growth and fatty acid composition of Pecten inaximus (L.
Effect of Rhodomonas salina addition to a standard hatchery diet during the early ontogeny of the scallop Pecten maximus.
1999) reported that an increase in temperature and photoperiod, reflecting spring conditions, enhanced gonad growth in the scallop Pecten maximus.