The fringe of teeth around the orifice of the capsule of mosses. It consists of 4, 8, 16, 32, or 64 teeth, and may be either single or double.
The lip, or edge of the aperture, of a spiral shell.
The membrane surrounding the mouth of an invertebrate animal.
region surrounding the cytostome and buccal cavity; the peristome may extend out onto the cell surface in heterotrich and peritrich ciliates.
Ring of teeth around capsule peristoom (mondbeslag)
The ring of teeth or fringe surrounding the capsule. When the peristome is double, the inner row is known as segments.
the area around the mouth in many invertebrates which sometimes is modified to assist in food collecting. An example is the first segment of polychaete worms, the protostomium, which is variously modified with hardened jaws, palps, or ciliated to collect food.
(botany) fringe of toothlike appendages surrounding the mouth of a moss capsule
region around the mouth in various invertebrates
In cyclostomes: A tubular prolongation around the zooidal aperture (Pitt & Taylor, 1991). A rim which may become elevated surrounding the primary orifice (Hayward & Ryland, 1979). Figures: Tubulipora, Porina, Margaretta
The fringe surrounding the mouth of the capsule upon removing the lid.
a raised collar or rim of calcification surrounding the primary orifice. Its opening, called the secondary orifice is often different in shape from the primary orifice.
A set of cells or cell parts which surround the opening of a moss sporangium. In many mosses, they are sensitive to humidity, and will alter their shape to aid in spore dispersal.
The word peristome is derived from the Greek for 'around a mouth', and is a term used to describe various structures in plants or invertebrate animals such as molluscs that surround an opening to an organ.
