procercoid


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procercoid

 [pro-ser´koid]
a larval stage of fish tapeworms.

pro·cer·coid

(prō-ser'koyd),
The first stage in the aquatic life cycle of certain tapeworms, such as the pseudophyllideans (family Diphyllobothriidae), following ingestion of the newly hatched larva (coracidium) by a copepod (water flea). The procercoid develops into a tailed larva in the body cavity of the crustacean first intermediate host; when the procercoid and its host are ingested by a fish, the procercoid enters the new host's tissues and becomes a plerocercoid.
See also: Diphyllobothrium latum, Pseudophyllidea.
[pro- + G. kerkos, tail, + eidos, resemblance]

procercoid

/pro·cer·coid/ (pro-ser´koid) a larval stage of fish tapeworms.

procercoid

(prō-sûr′koid)
n.
A wormlike larval form of certain tapeworms, typically developing in a copepod.

procercoid

[prōsur′koid]
the first stage in the life cycle of certain tapeworms that develop from the coracidium stage of Diphyllobothrium latum. The tapeworm develops in the body of the first intermediate host, either a crustacean or a copepod of the genus Diaptomus.

procercoid

the first larval stage in the life cycle of a pseudophyllidean cestode, e.g. Spirocerca erinacei. The procercoid is a solid bodied stage with oncospheral hooks carried on the cercomer in the posterior region.