Life-cycle and biology of Prototransversotrema-Steeri Angel, 1969 (Digenea, Transversotrematidae)

Cribb, Thomas H. (1988) Life-cycle and biology of Prototransversotrema-Steeri Angel, 1969 (Digenea, Transversotrematidae). Australian Journal of Zoology, 36 2: 111-129. doi:10.1071/ZO9880111

Author Cribb, Thomas H.
Title Life-cycle and biology of Prototransversotrema-Steeri Angel, 1969 (Digenea, Transversotrematidae)
Formatted title
Life-cycle and biology of Prototransversotrema-Steeri Angel, 1969 (Digenea, Transversotrematidae)
Journal name Australian Journal of Zoology   Check publisher's open access policy
ISSN 0004-959X
Publication date 1988
Sub-type Article (original research)
DOI 10.1071/ZO9880111
Volume 36
Issue 2
Start page 111
End page 129
Total pages 19
Place of publication Collingwood, VIC, Australia
Publisher C S I R O Publishing
Language eng
Formatted abstract
A population of Prototransversotrema steeri Angel, 1969 is recorded from the introduced fish Gambusia affinis and the native species Pseudomugil signifer and Mugil cephalus in fresh water in Queensland, Australia. Adults of P. steeri are considerably smaller than adults previously described from marine fish. This appears to be a host-related phenomenon, possibly reflecting the size of the subscale niche offered by the host. The intermediate host is Posticobia brazieri, a hydrobiid snail. It is suggested that different hydrobiid snails may act as intermediate hosts in other parts of Australia. The miracidium develops into a mother sporocyst which produces a single mother redia. Mother rediae produce daughter rediae which may produce further daughter rediae or cercariae. Cercariae emerge from the redia while still embryonic and develop independently in the tissues of the snail. Upon emergence the cercariae attach directly to the definitive host and commence egg-production within 6 days. Gambusia affinis, Xiphophorus rnaculatus, X. helleri, Craterocephalus marjoriae and Mugil cephalus were all infected experimentally. I discuss various theories concerning the phylogenetic position of the Transverso- trematidae within the Digenea and conclude that the family occupies an isolated position not closely allied with any other group.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
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