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In the most primitive gastropods, however, the stomach is a more complex structure. In these species, the hind part of the stomach, where the oesophagus enters, is chitinous, and includes a sorting region lined with cilia. [1] In all gastropods, the portion of the stomach furthest from the oesophagus, called the "style sac", is lined with cilia.
Gastropods (/ ˈ ɡ æ s t r ə p ɒ d z /), commonly known as slugs and snails, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (/ ɡ æ s ˈ t r ɒ p ə d ə /). This class comprises snails and slugs from saltwater, freshwater, and from the land.
Gastropods are found in a wide range of aquatic and terrestrial habitats, from deep ocean trenches to deserts. Some of the more familiar and better-known gastropods are terrestrial gastropods (the land snails and slugs). Some live in fresh water, but most named species of gastropods live in a marine environment.
Gastropod-borne parasitic diseases have a significant impact on human, livestock and companion animal health. Over 140 gastropod species from 20 families are known intermediate hosts for nematode and trematode species that affect hundreds of millions of people in around 90 countries. [ 1 ]
Gastropods of Asia (74 P) Gastropods of Australia (2 C, 1,012 P) E. Gastropods of Europe (74 P) This page was last edited on 21 August 2021, at 03:41 (UTC). ...
This outline is provided as an overview of, and organized list of articles relevant to, the subject of gastropods (snails and slugs): Gastropod – any member of the class Gastropoda, which includes slugs and snails.
Pages in category "Gastropods by location" This category contains only the following page. This list may not reflect recent changes. B. Biogeography of gastropods
In gastropods in many ancient lineages, the gills are bipectinate, having an overall shape that is similar to a bird's feather, with narrow filaments projecting either side of a central stalk. Gastropods such as abalone and keyhole limpets have two gills, which is believed to be the arrangement in the earliest fossil gastropods. The water ...