Trematoda | Azygiida
Environment: milieu / climate zone / depth range / distribution range
Western Central Atlantic and Northwest Pacific: Puerto Rico, USA and Japan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 0.5 cm TL male/unsexed; (Ref. 359)
A tiny, elongate fluke with the oral and ventral suckers close together and approximately the same size. Tail: less than 1/3 of the total body length. Tubular mass of vitellaria: Confined in the midbody and does not nearly reach the tail (Ref. 359).
Length : 0.36 to 0.48 cm. Host Specificity: Specific to scombrids, but insufficient information is available to assess its individual host preferences. Our records in Atlantic sailfish and longbill spearfish may represent false hosts resulting from these predators eating scombrids. These 2 billfish species are also new hosts for this parasite (Ref. 359). Members of the class Trematoda are parasitic, thus requires a host to survive. Life cycle: Eggs are passed on to the feces of the hosts. Embryos hatch into miracidia and penetrate the tissues of snails where they further undergo three stages: sporocysts (Ref. 833).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Trematoda are parasitic, thus requires a host to survive. Life cycle: Eggs are passed on to the feces of the hosts. Embryos hatch into miracidia and penetrate the tissues of snails where they further undergo three stages: sporocysts
Williams, E.H. Jr. and L. Bunkley-Williams. 1996. (Ref. 359)
IUCN Red List Status (Ref. 115185)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
Low vulnerability (10 of 100)