Carcinonemertes Caissarum

	Carcinonemertes Caissarum ''Carcinonemertes'' is a genus of nemerteans belonging to the family Carcinonemertidae. The genus has almost cosmopolitan distribution. Species Species: ''Carcinonemertes australiensis'' '' Carcinonemertes caissarum'' ''Carcinonemertes errans ''Carcinonemertes errans'' is a ribbon worm in the family Carcinonemertidae. It lives in symbiosis with the Dungeness crab (''Metacarcinus magister''), consuming the crab's developing eggs. In 1980 it was implicated in the collapse of the Dungen ...'' References Monostilifera Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	Nemertea Nemertea is a phylum of animals also known as ribbon worms or proboscis worms, consisting of 1300 known species. Most ribbon worms are very slim, usually only a few millimeters wide, although a few have relatively short but wide bodies. Many have patterns of yellow, orange, red and green coloration. The foregut, stomach and intestine run a little below the midline of the body, the anus is at the tip of the tail, and the mouth is under the front. A little above the gut is the rhynchocoel, a cavity which mostly runs above the midline and ends a little short of the rear of the body. All species have a proboscis which lies in the rhynchocoel when inactive but everts to emerge just above the mouth to capture the animal's prey with venom. A highly extensible muscle in the back of the rhynchocoel pulls the proboscis in when an attack ends. A few species with stubby bodies filter feed and have suckers at the front and back ends, with which they attach to a host. The brain is a rin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Carcinonemertidae Carcinonemertidae is a family of worms belonging to the order Hoplonemertea Hoplonemertea is an order of ribbon worms in the class Enopla. It contains two suborders: * Monostilifera * Polystilifera The proboscis is armed with one or more stylets; intestine straight, mostly with paired lateral diverticula; no post .... Genera: * '' Carcinonemertes'' Coe, 1902 * '' Ovicides'' Shields, 2001 * '' Pseudocarcinonemertes'' Fleming & Gibson, 1981 References Monostilifera Nemertea families {{nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Cosmopolitan Distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Carcinonemertes Australiensis ''Carcinonemertes'' is a genus of nemerteans belonging to the family Carcinonemertidae. The genus has almost cosmopolitan distribution. Species Species: '' Carcinonemertes australiensis'' '' Carcinonemertes caissarum'' ''Carcinonemertes errans ''Carcinonemertes errans'' is a ribbon worm in the family Carcinonemertidae. It lives in symbiosis with the Dungeness crab (''Metacarcinus magister''), consuming the crab's developing eggs. In 1980 it was implicated in the collapse of the Dungen ...'' References Monostilifera Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Carcinonemertes Caissarum ''Carcinonemertes'' is a genus of nemerteans belonging to the family Carcinonemertidae. The genus has almost cosmopolitan distribution. Species Species: ''Carcinonemertes australiensis'' '' Carcinonemertes caissarum'' ''Carcinonemertes errans ''Carcinonemertes errans'' is a ribbon worm in the family Carcinonemertidae. It lives in symbiosis with the Dungeness crab (''Metacarcinus magister''), consuming the crab's developing eggs. In 1980 it was implicated in the collapse of the Dungen ...'' References Monostilifera Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Carcinonemertes Errans ''Carcinonemertes errans'' is a ribbon worm in the family Carcinonemertidae. It lives in symbiosis with the Dungeness crab (''Metacarcinus magister''), consuming the crab's developing eggs. In 1980 it was implicated in the collapse of the Dungeness crab fishery in central California. Ecology The planktonic larva of the worm settles on a suitable crab host and encysts on the exoskeleton. ''Carcinonemertes errans'' is the first species in its genus to be found on a single host species. The worm has a permanent symbiotic relationship with its host crab but it is not a parasite as it does not feed directly on the crab but is instead an egg-predator. In male crabs, and in non-breeding female crabs, the worm may live in the axils of the limbs and encyst. After mating, the mature female crab stores the sperm for several months, before releasing a batch of fertilised eggs onto her abdomen, where she tucks them under the tail flap. At this stage, the ribbon worm migrates to the mass of e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Monostilifera Monostilifera is a suborder of nemertean worms belonging to the class Enopla, a class of worms characterized by the presence of a peculiar armature of spines or plates in their proboscis. Families * Acteonemertidae * Amphiporidae * Carcinonemertidae * Cratenemertidae * Prosorhochmidae * Tetrastemmatidae Genus (unassigned family): ''Quasitetrastemma ''Quasitetrastemma'' is a genus of worms belonging to the order Monostilifera Monostilifera is a suborder of nemertean worms belonging to the class Enopla Enopla is one of the classes of the worm phylum Nemertea, characterized by the pr ...'' Chernyshev, 2004 References Hoplonemertea {{Nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]