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Note that the common names of edible bivalves can be misleading, in that not all species known as "cockles" "oysters", "mussels", etc., are closely related. Ark clams , including: Blood cockle; Senilia senilis; Many species of true mussels, family Mytilidae, including: Blue mussels. Blue mussel; California mussel; Mediterranean mussel; Mytilus ...
Nautilus (from Latin nautilus 'paper nautilus', from Ancient Greek ναυτίλος nautílos 'little sailor') [3] are the ancient pelagic marine mollusc species of the cephalopod family Nautilidae. This is the sole extant family of the superfamily Nautilaceae and the suborder Nautilina .
The chambered nautilus (Nautilus pompilius), also called the pearly nautilus, is the best-known species of nautilus. The shell, when cut away, reveals a lining of lustrous nacre and displays a nearly perfect equiangular spiral, although it is not a golden spiral. The shell exhibits countershading, being light on the bottom and dark on top. This ...
Nautilus belauensis. Much of what is known about the extinct nautiloids is based on what we know about modern nautiluses, such as the chambered nautilus, which is found in the southwest Pacific Ocean from Samoa to the Philippines, and in the Indian Ocean off the coast of Australia. It is not usually found in waters less than 100 meters (328 ...
Nautilus is also capable of creating a jet by undulations of its funnel; this slower flow of water is more suited to the extraction of oxygen from the water. [74] When motionless, Nautilus can only extract 20% of oxygen from the water. [62]
Today, the consumption of marine mammals is much reduced. However, a 2011 study found that the number of humans eating them, from a surprisingly wide variety of species, is increasing. [1] According to the study's lead author, Martin Robards, "Some of the most commonly eaten animals are small cetaceans like the lesser dolphins...
The Nautilida constitute a large and diverse order of generally coiled nautiloid cephalopods that began in the mid Paleozoic and continues to the present with a single family, the Nautilidae which includes two genera, Nautilus and Allonautilus, with six species.
Allonautilus scrobiculatus, or otherwise known as the crusty nautilus or fuzzy nautilus is a species of cephalopod. A. scrobiculatus ' most recently sighting was in July 2015 by biologist Peter Ward of the University of Washington. Ward's colleague, Bruce Saunders, a geologist from Bryn Mawr College was the one who had initially sighted the ...