Microcotyle constricta

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Microcotyle constricta
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Mazocraeidea
Family: Microcotylidae
Genus: Microcotyle
Species:
M. constricta
Binomial name
Microcotyle constricta
Robinson, 1961

Microcotyle constricta is a

gills of a marine fish. It belongs to the family Microcotylidae.[1]

Taxonomy

Microcotyle constricta was first described by Robinson in 1961 from the gills of the New Zealand blue cod

Pinguipedidae) based on one specimens (one sectioned).[1] In 1965, Dillon & Hargis redescribed this species based on 20 specimens and gave additional information regarding buccal organs, seminal receptacle position and egg.[2]

Morphology

Parapercis colias
is the type host of Microcotyle constricta

Microcotyle constricta has the general morphology of all species of

intestine with two lateral branches provided with numerous secondary branches. The left branch extends into the haptor. Each adult contains male and female reproductive organs. The reproductive organs include an anterior circular genital atrium located approximately midway between the buccal suckers and body constriction, armed with numerous elongate rose-thorn shaped spines, a medio-dorsal vagina located at level of body constriction, a single tubular coiled ovary and 18-25 follicular testes which are posterior to the ovary and closely packed.[1]

Diagnosis

Microcotyle constricta most closely resembles Microcotyle ditrematis, but differs in clamps' width and structure; the rounded genital atrium; the rounded anterior end of body and the constriction at level of the vaginal pore.[1]

Hosts and localities

The type-host of Microcotyle constricta is the New Zealand blue cod

Pinguipedidae). The type-locality is off New Zealand.[1] Dillon & Hargis reported this species from the type-host and locality.[2]

References