Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Bivalvia
Subclassis: Pteriomorphia
Ordo: Pectinida
Superfamilia: Pectinoidea
Familia: Entoliidae
Genus: Pectinella
Name
Entoliidae Teppner, 1922
The Entoliidae, also referred to as the entoliids, are a taxonomic family of saltwater clams, marine bivalve mollusks in the order Pectinida. They are related to and are considered the ancestors of modern scallops. In the geological record the family contains at least seven species in five different genera, though only one is extant and it is very rare and cryptic, inhabiting the Caribbean and central west Pacific Ocean in small, disjointed populations.[1]
A significant morphological feature lacking in the entoliids but present in modern scallops is the ctenolium, a comb-like structure under the anterior auricle through which scallops are able to produce a byssal thread for attachment to a substrate. The entoliids did not/ do not secrete a byssal thread.
Genera and species
Genera and species within the family Entoliidae include:
Entolium Meek 1865
Entolium fossatum Marwick 1953
Entolium utokokense Imlay 1961
Pectinella
Pectinella sigsbeei (Dall, 1886)
Pectinella aequoris Dijkstra, 1991
Pernopecten Winchell 1865
Somapecten
Syncyclonema Meek 1864
Syncyclonema travisanus Stephenson 1941
References
Sandra E. Shumway; Jay G.J. Parsons (22 September 2011). Scallops: Biology, Ecology and Aquaculture: Biology, Ecology and Aquaculture. Elsevier. p. 123. ISBN 978-0-08-048077-0.
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