''Mimachlamys'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
scallops
Scallop () is a common name that encompasses various species of marine bivalve molluscs in the taxonomic family Pectinidae, the scallops. However, the common name "scallop" is also sometimes applied to species in other closely related famili ...
,
marine bivalve
Bivalvia () or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of aquatic animal, aquatic molluscs (marine and freshwater) that have laterally compressed soft bodies enclosed b ...
mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...
s in the taxonomic family
Pectinidae
Scallop () is a common name that encompasses various species of Marine (ocean), marine bivalve mollusc, molluscs in the Taxonomy (biology), taxonomic Family (biology), family Pectinidae, the scallops. However, the common name "scallop" is also ...
. There are at least 11 living species, including the glory scallop ''
Mimachlamys gloriosa'', and the ''
Mimachlamys asperrima''.
Shell description
In this genus, the
valves
A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, ...
are both
convex
Convex or convexity may refer to:
Science and technology
* Convex lens, in optics
Mathematics
* Convex set, containing the whole line segment that joins points
** Convex polygon, a polygon which encloses a convex set of points
** Convex polytop ...
, though the left valve is more convex than the right. The
auricles, ear-like projections on either side of the hinge, are inequal in size, with the anterior always being much larger than the posterior. The
byssal notch is deep, and the valves are generally similar in sculpture.
Distribution and habitat
The habitat for this genus is temperate oceans down to a depth of several hundred meters, from southern Australia to Indonesia and north to the Philippines. Some species in the genus ''Mimachlamys'' retain their byssal threads through adulthood, and are not free swimming.
Species
Species of ''Mimachlamys'' include:
*''
Mimachlamys albolineata''
*''
Mimachlamys asperrima''
*''
Mimachlamys australis''
*''
Mimachlamys cloacata''
*''
Mimachlamys crassicostata''
*''
Mimachlamys gloriosa''
*''
Mimachlamys nobilis''
*''
Mimachlamys sanguinea''
*''
Mimachlamys senatoria''
*''
Mimachlamys townsendi''
*''
Mimachlamys varia''
References
* Lazo, D. (2007). Early Cretaceous bivalves of the Neuquén Basin, west-central Argentina: notes on taxonomy, palaeobiogeography and palaeoecology. Geological Journal, 42(2), pp. 127–142.
Pectinidae
Bivalve genera
{{Pectinidae-stub