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TIARINION TEXOPALLIUM, NEW SPECIES, AN ENTONISCID ISOPOD INFESTING MAJID CRABS ( TIARINIA SPP.) FROM THE GREAT BARRIER REEF, AUSTRALIA

TIARINION TEXOPALLIUM, NEW SPECIES, AN ENTONISCID ISOPOD INFESTING MAJID CRABS ( TIARINIA SPP.)... and Entoniscid isopods are unusual internal parasites of crabs and shrimps. Female en- toniscids are usually modified beyond recog- nition of most isopod characters, with the marsupium grossly inflated as a hood that in some cases extends dorsally over the cepha- Ion. The male and larval entoniscids, how- ever, appear more isopodlike with a dorsoven- trally compressed body, complete segmenta- tion, and pereiopods. Mature females are surrounded by a host response sheath, with an external communication to the environ- ment via a small hole or furrow in the cara- pace of their hosts (Giard and Bonnier, 1887). Most entoniscids are parasitic castrators, al- though complete castration may depend upon the status of the host and the duration of the infestation. In some cases, entoniscids can feminize male hosts (e.g., Giard, 1887; Veil- let, 1945; Reinhard, 1956). The genus Tiarinion contains a single known species, T. fulvus Shiino, 1942, that parasitizes Tiarinia cornigera Latreille from Japan (Shiino, 1942). We describe a new spe- cies of Entoniscidae from majid crabs in the genus Tiarinia found on the Great Barrier Reef, Australia. The isopod belongs in the genus Tiarinion because (1) the first and sec- ond oostegites are well developed, while http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

TIARINION TEXOPALLIUM, NEW SPECIES, AN ENTONISCID ISOPOD INFESTING MAJID CRABS ( TIARINIA SPP.) FROM THE GREAT BARRIER REEF, AUSTRALIA

Shields, Jeffrey D.; Ward, Landon A.
Journal of Crustacean Biology , Volume 18 (3): 590 – Jan 1, 1998
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Publisher
Brill
Copyright
Copyright 1998 by Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1163/193724098X00412
Publisher site
See Article on Publisher Site

Abstract

and Entoniscid isopods are unusual internal parasites of crabs and shrimps. Female en- toniscids are usually modified beyond recog- nition of most isopod characters, with the marsupium grossly inflated as a hood that in some cases extends dorsally over the cepha- Ion. The male and larval entoniscids, how- ever, appear more isopodlike with a dorsoven- trally compressed body, complete segmenta- tion, and pereiopods. Mature females are surrounded by a host response sheath, with an external communication to the environ- ment via a small hole or furrow in the cara- pace of their hosts (Giard and Bonnier, 1887). Most entoniscids are parasitic castrators, al- though complete castration may depend upon the status of the host and the duration of the infestation. In some cases, entoniscids can feminize male hosts (e.g., Giard, 1887; Veil- let, 1945; Reinhard, 1956). The genus Tiarinion contains a single known species, T. fulvus Shiino, 1942, that parasitizes Tiarinia cornigera Latreille from Japan (Shiino, 1942). We describe a new spe- cies of Entoniscidae from majid crabs in the genus Tiarinia found on the Great Barrier Reef, Australia. The isopod belongs in the genus Tiarinion because (1) the first and sec- ond oostegites are well developed, while

Journal

Journal of Crustacean Biology – Brill

Published: Jan 1, 1998

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