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title Mud and silk in the dark: A new type of millipede moulting chamber and first observations on the maturation moult in the order Callipodida
authors Reboleira, ASPS; Enghoff, H
author full name Reboleira, Ana Sofia P. S.; Enghoff, Henrik
title Mud and silk in the dark: A new type of millipede moulting chamber and first observations on the maturation moult in the order Callipodida
nationality internacional
source ARTHROPOD STRUCTURE & DEVELOPMENT
language English
document type Article
author keywords Postembryonic development; Anamorphosis; Cave; Spinneret
keywords plus DIPLOPODA; CAVES
abstract The postembryonic development of millipedes includes a series of stadia separated by moults, a process known as anamorphosis. The moulting process and especially the moulting into maturity, i.e., with fully developed copulatory organs, remains unknown for most millipede species. We have kept specimens of Lusitanipus alternans (Verhoeff, 1893) in the laboratory for one year and studied its moulting process, including the first study of the maturation moult in the order Callipodida. Unlike the typical silk cocoon reported for other callipodidans, this species builds a new type of solid moulting chamber, using the available substrate reinforced by a silken web. We present the detailed ultrastructure of the moulting chamber and silk. It takes five days to build the moulting chamber and between 29 (female) and 35 (male) days to shed the exuviae. The male maturation moult is preceded by an evagination of a gonopodal sac between the 6th and 7th body rings, in which the gonopods are developed. Females evaginated completely their vulval sacs, retracting them after shedding the exuviae. Vulva] sac size seems to increase with the progressive reduction of the second pair of legs. (C) 2016 Elsevier Ltd. All rights reserved.
author address [Reboleira, Ana Sofia P. S.; Enghoff, Henrik] Univ Copenhagen, Nat Hist Museum Denmark, Univ Pk 15, DK-2100 Copenhagen O, Denmark
reprint address Reboleira, ASPS (reprint author), Univ Copenhagen, Nat Hist Museum Denmark, Univ Pk 15, DK-2100 Copenhagen O, Denmark.
funding agency and grant number Danish Council for Independent Research [DFF-FNU 4002-00269]
funding text This project was funded by the Danish Council for Independent Research, ref. DFF-FNU 4002-00269. All specimens were collected under legal permits.
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cited reference count 19
publisher ELSEVIER SCI LTD
publisher city OXFORD
publisher address THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
issn 1467-8039
29-character source abbreviation ARTHROPOD STRUCT DEV
iso source abbreviation Arthropod Struct. Dev.
publication date MAY
year published 2016
volume 45
issue 3
beginning page 301
ending page 306
digital object identifier (doi) 10.1016/j.asd.2016.04.001
page count 6
web of science category Entomology
subject category Entomology
document delivery number DN7DA
unique article identifier WOS:000377234300009