Sewell, Kim B., Cannon, Lester R.G., and Blair, David (2006) A review of Temnohaswellia and Temnosewellia (Platyhelminthes: Temnocephalida: Temnocephalidae), ectosymbionts from Australian crayfish Euastacus (Parastacidae). Memoirs of the Queensland Museum, 52 (1). pp. 199-279.

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Abstract

Temnohaswellia, containing six-tentacled and usually non-pigmented ectosymbiont worms form freshwater crayfish in Australia and New Zealand, is reviewed and 10 new species described from spiny mountain crayfish (Euastacus spp., Parastacidae) from eastern Australia. The sclerotic armature of the vagina was found most useful in discriminating species in this genus. Australian Temnohaswellia species are confined to Euastacus hosts, but are characterised by low level host specificity. Temnosewellia, with five tentacles and usually pigmented, is reviewed from Euastacus hosts in Australia and 31 new species are described. The sclerotic armature of the male cirrus was found most useful in discriminating species of this genus, with the vagina showing little variation. Temnosewellia species are not confined to Euastacus hosts, but on these hosts show much stricter host specificity.

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