Subfamily Concinnocotylinae Pichelin, Whittington & Pearson, 1991

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Introduction

Members of the Concinnocotylinae are characterised as follows: Haptor with three pairs of suckers and one pair of hamuli. Suckers ventral, muscular, cup-like, bilaterally symmetrical, with skeleton of sclerites. Marginal hooklets 16, pairs III, IV and V persisting in base of sucker pairs 1, 2 and 3 respectively. Hamuli, single pair between marginal hooktets I and II. Eyes two pairs. Gut bifurcate, confluent posteriorly; caeca lateral, extending length of body, not entering haptor, unbranched but each with single short anterior diverticulum near pharynx and conspicuous pocket, connected posteriorly. Pockets two, opposite, one connected to lateral face of each caecum post-testicularly, opening dorsally by short duct. Penis elongate, muscular, unarmed, lies in duct opening into genital atrium. Penis-bulb large, highly glandular. Seminal vesicle large, discrete, wall muscular. Testes numerous, intercaecal. Ovary pretesticular, dorsal to seminal vesicle, amphitypic. Uterus absent. Common genital pore median, ventral to pharynx. Vaginae absent. Egg, long ellipsoid, with abopercular appendage.

Concinnocotylines are known only from gills and oral cavity of Australian lungfish Neoceratodus forsteri.

Type- and only species: Concinnocotyla australensis (Reichenbach-Klinke, 1966) n. comb.
Synonyms: Eupolystoma australensis Reichenbach-Klinke, 1966; Pseudopolystoma australensis (Reichenbach-Klinke, 1966) Euzet & Combes, 1967 (Pichelin et al. 1991).

General References

Pichelin, S., Whittington, I.D. & Pearson, J.C. 1991. Conncinnocotyla (Monogenea: Polystomatidae), a new genus for the polystome from the Australian lung-fish Neoceratodus forsteri. Systematic Parasitology 19: 81-93

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