Abstract:
:All developmental stages of Tanystylum bealensis are described. This is the first complete developmental series of a pycnogonid species collected from a natural, rather than a laboratory-reared population. Development proceeds through a series of nine instars from egg to adult, with major defining characteristics of the instars being the addition of walking legs, loss of chelifores, and modification of larval appendages into adult palps and ovigers. All stages are free-living on the hydroid Plumularia setacea, except for the first instar (protonymphon), which remains on the ovigers of the adult male for a short time after hatching. Development in T. bealensis is compared to development in both the closely related species T. orbiculare and to the more distantly related Achelia alaskensis.
journal_name
J Morpholjournal_title
Journal of morphologyauthors
Gillespie JM,Bain BAdoi
10.1002/jmor.10402keywords:
subject
Has Abstractpub_date
2006-03-01 00:00:00pages
308-17issue
3eissn
0362-2525issn
1097-4687journal_volume
267pub_type
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