''Trypanorhyncha'' is an

order Order, ORDER or Orders may refer to: * A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica * Categorization, the process in which ideas and objects are recognized, differentiated, and understood ...

cestodes Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the species—and the best-known—are those in the subclass Eucestoda; they are ribbon-like worms as adults, commonly known as tapeworms. Their bodies con ...

, a type of

flatworm Platyhelminthes (from the Greek language, Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") is a Phylum (biology), phylum of relatively simple bilaterian, Segmentation (biology), ...

. Some

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

infect gamefish, such as sciaenids, during the parasitic worm's

plerocercoid ''Plerocercoid'' refers to last larval form, the infective form, found in the second intermediate host of many Cestoda Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the species—and the best-known� ...

stage, and are commonly called spaghetti worm because of their appearance, approximating cooked

spaghetti Spaghetti () is a long, thin, solid, cylindrical pasta.spaghetti
Dictionary.com. Dictionary.com Una ...

. 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'' Parasite140092-fig2 FIG 2 Cestoda Trypanorhyncha Callitetrarhynchus gracilis in Scomberomorus commerson.JPG, Plerocerci of '' Callitetrarhynchus gracilis'' 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 a diverse group of marine ray-finned fish in the family Epinephelidae, in the order Perciformes. Groupers were long considered a subfamily of the seabasses in Serranidae, but are now treated as distinct. Not all members of this f ...

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