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The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles a toy spinning top .
A dodman (plural "dodmen") or a hoddyman dod is a local English vernacular word for a land snail. The word is used in some of the counties of England. This word is found in the Norfolk dialect, according to the Oxford English Dictionary. Fairfax, in his Bulk and Selvedge (1674), speaks of "a snayl or dodman".
These snails eat dead plant and animal matter and various other detritus. Because Physella acuta forages mainly on epiphytic vegetation and on the macrophytes, whereas other gastropods ( Planorbis planorbis , Radix ovata ) exploit the algal cover or phytobentos on the bottom, competition between Physella acuta and other gastropods appears to be ...
These snails are sometimes viewed as pests in aquarium tanks with fish, because the snails create waste, reproduce very often, and are very hard to remove completely. However, some aquarium owners deliberately choose to add these freshwater pond snails to their tank because the snails will eat uneaten fish food, algae and waste, as well as ...
Others, such as the dog whelk, belong to several sea snail families that are not closely related. True whelks (family Buccinidae) are carnivorous, and feed on annelids, crustaceans, mussels and other molluscs, drilling holes through shells to gain access to the soft tissues. Whelks use chemoreceptors to locate their prey. [2]
Volutidae, common name volutes, are a taxonomic family of predatory sea snails that range in size from 9 mm to over 500 mm. They are marine gastropod mollusks . Most of the species have no operculum .
In today's puzzle, there are seven theme words to find (including the spangram). Hint: The first one can be found in the top half of the board. Here are the first two letters for each word: CH. CO ...
Front view of land snail showing upper and lower sets of tentacles Abalone showing pallial tentacles. Many molluscs have tentacles of one form or another. The most familiar are those of the pulmonate land snails, which usually have two sets of tentacles on the head: when extended the upper pair have eyes at their tips; the lower pair are chemoreceptors.