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The Nassariidae, Nassa mud snails (US), or dog whelks (UK) are a taxonomic family of small to medium-sized snails, mostly marine gastropod mollusks in the clade Neogastropoda. These snails have rounded shells with a high spire , an oval aperture , and a siphonal notch.
When kept emersed for seven days at a temperature of 18 °C, 100% of dog whelks die, in contrast to many periwinkle species which can lose even more water than the dog whelk (i.e. more than 37% of their total body mass) but survive as a result of their ability to excrete toxic waste products more efficiently. [citation needed]
Phrontis alba, common name the variable dog whelk, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. [ 1 ] The variety Nassarius albus var. nanus Nowell-Usticke, 1959 is a synonym of Phrontis karinae Nowell-Usticke, 1971
Nassarius arcularia, the casket nassa or the little box dog whelk, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. [1] It is found in tropical and subtropical coastal waters across the world, inhabiting muddy areas close to the shoreline.
Nassarius glans, common name the acorn dog whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks. [ 1 ] Subspecies
Tritia reticulata, common name the "netted dog whelk", is a species of small European sea snail, a marine gastropod mollusc in the family Nassariidae, the dog whelks or nassa mud snails. [ 2 ] Description
Tritia incrassata, common name the thick-lipped dogwhelk, is a species of small sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. [ 2 ] Description
Abalone reach maturity at a relatively small size. Their fecundity is high and increases with their size (from 10,000 to 11 million eggs at a time). The spermatozoa are filiform and pointed at one end, and the anterior end is a rounded head. [8] The larvae are lecithotrophic