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Ancyroniscus Bonnieri (Isopoda, Epicaridea) Infecting British Populations of Dynamene Bidentata (Isopoda, Sphaeromatidae)

Ancyroniscus Bonnieri (Isopoda, Epicaridea) Infecting British Populations of Dynamene Bidentata... ANCYRONISCUS BONNIERI (ISOPODA, EPICARIDEA) INFECTING BRITISH POPULATIONS OF DYNAMENE BIDENTATA (ISOPODA, SPHAEROMATIDAE) BY D. M. HOLDICH Department of Zoology, The University, Nottingham, Great Britain INTRODUCTION The epicarid isopod Ancyroniscus bonnieri Caullery & Mesnil, 1919, infects ovigerous females of the intertidal sphaeromid isopod Dynamene bidentata (Adams), and although the host species has a boreal distribution (Holdich, 1970; Hol,dich & Lincoln, 1974) the parasite has in the past only been recorded from the Atlantic coast of France (Caullery & Mesnil, 1919, 1920; Bourdon, 1961, 1963). Much of the detailed biology of A. bonnieri has been described by Caul- lery & Mesnil (1920), and Bourdon (1961) who have shown that the crypto- niscan larvae usually enter the pre-ovigerous females of the host. One larva in each host then develops into a female, and at the onset of the host's ovigerous stage partially bores its way into the marsupium and feeds on the brood. The parasite develops its own internal marsupium and subsequently becomes little more than two egg sacs linked across the ventral body wall of the host. The eggs develop into epicaridean larvae and on release via the host's marsupium they follow the normal cryptoniscid type of development (Caullery, 1922) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Ancyroniscus Bonnieri (Isopoda, Epicaridea) Infecting British Populations of Dynamene Bidentata (Isopoda, Sphaeromatidae)

Crustaceana , Volume 28 (1): 145 – Jan 1, 1975

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Publisher
Brill
Copyright
© 1975 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216x
eISSN
1568-5403
DOI
10.1163/156854075X01017
Publisher site
See Article on Publisher Site

Abstract

ANCYRONISCUS BONNIERI (ISOPODA, EPICARIDEA) INFECTING BRITISH POPULATIONS OF DYNAMENE BIDENTATA (ISOPODA, SPHAEROMATIDAE) BY D. M. HOLDICH Department of Zoology, The University, Nottingham, Great Britain INTRODUCTION The epicarid isopod Ancyroniscus bonnieri Caullery & Mesnil, 1919, infects ovigerous females of the intertidal sphaeromid isopod Dynamene bidentata (Adams), and although the host species has a boreal distribution (Holdich, 1970; Hol,dich & Lincoln, 1974) the parasite has in the past only been recorded from the Atlantic coast of France (Caullery & Mesnil, 1919, 1920; Bourdon, 1961, 1963). Much of the detailed biology of A. bonnieri has been described by Caul- lery & Mesnil (1920), and Bourdon (1961) who have shown that the crypto- niscan larvae usually enter the pre-ovigerous females of the host. One larva in each host then develops into a female, and at the onset of the host's ovigerous stage partially bores its way into the marsupium and feeds on the brood. The parasite develops its own internal marsupium and subsequently becomes little more than two egg sacs linked across the ventral body wall of the host. The eggs develop into epicaridean larvae and on release via the host's marsupium they follow the normal cryptoniscid type of development (Caullery, 1922)

Journal

CrustaceanaBrill

Published: Jan 1, 1975

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