''Trypanorhyncha'' is an
order
Order, ORDER or Orders may refer to:
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
* Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...
of
cestodes, a type of
flatworm
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") are a phylum of relatively simple bilaterian, unsegment ...
.
Some
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
infect gamefish, such as
sciaenids, during the parasitic worm's
plerocercoid stage, and are commonly called spaghetti worm because of their appearance, approximating cooked
spaghetti. Such species include ''
Poecilancistrium caryophyllum'' and ''
Pseudogrillotia pleistacantha''.
Their scolex, or head region, has 2 to 4
bothria, or sucking grooves that cling onto the host. They have four retractable tentacles.
Gallery
FIG11 Nybelinia basimegacantha Tentacle.png, Tentacle of '' Nybelinia basimegacantha'', parasitic in the fish ''Neoniphon sammara
''Neoniphon sammara'', the sammara squirrelfish, also known as the blood-spot squirrelfish, slender squirrelfish, spotfin squirrelfish, armed squirrel-fish or javelin squirrelfish, is a species squirrelfish found in the Indian Ocean and Pacific ...
''
Parasite140092-fig2 FIG 2 Cestoda Trypanorhyncha Callitetrarhynchus gracilis in Scomberomorus commerson.JPG, Plerocerci of ''Callitetrarhynchus gracilis
''Callitetrarhynchus'' is a genus of flatworms belonging to the family Lacistorhynchidae
''Trypanorhyncha'' is an order of cestodes, a type of flatworm.
Some species infect gamefish, such as sciaenids, during the parasitic worm's plerocercoid ...
'' in the body cavity of the fish '' Scomberomorus commerson''
Parasite140092-fig2 FIG 3 Cestoda Trypanorhyncha melanized plerocerci in Epinephelus sp.JPG, melanized plerocerci in the bodycavity of a grouper
Groupers are fish of any of a number of genera in the subfamily Epinephelinae of the family Serranidae, in the order Perciformes.
Not all serranids are called "groupers"; the family also includes the sea basses. The common name "grouper" is u ...
Parasite140092-fig2 FIG 6 Cestoda Trypanorhyncha Molicola horridus in Diodon hystrix liver.png, '' Molicola horridus'' in the liver of the fish ''Diodon hystrix
Porcupinefishes or balloonfishes, are any of the various species of the genus ''Diodon'', the type genus of Diodontidae.
Distinguishing features
Fish of the genus ''Diodon'' have:
* two-rooted, movable spines (which are derived from modified s ...
''
References
Cestoda
Platyhelminthes orders
{{cestoda-stub