Published December 31, 2000 | Version v1

Jenkina BrOndsted 1931

  • 1. Departamento de Histologia e Embriologia, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Caixa Postal 68021, 21941 - 970 Rio de Janeiro (Brazil) radovan @ iq. ufrj. br
  • 2. Centre d'Océanologie de Marseille (CNRS-Université de la Méditerranée, UMR 6540 DIMAR), Station marine d'Endoume, F- 13007 Marseille (France) esnault @ com. univ-mrs. fr jvacelet @ com. univ-mrs. fr

Description

Genus Jenkina BrØndsted, 1931

TYPE SPECIES. — Leucandra hiberna Jenkin, 1908 by subsequent designation (Laubenfels 1936).

DIAGNOSIS. — Jenkinidae with a simple tubular body and a sylleibid or leuconoid organization of the aquiferous system. The choanoskeleton is composed of the unpaired actine of subatrial spicules and, occasionally, the proximal part of radial diactines that cross the sponge wall.

DESCRIPTION

BrØndsted (1931) proposed the genus Jenkina for a group of sponges described by Jenkin (1908a) and by himself from Antarctica. These sponges are wellcharacterized by an inarticulate choanoskeleton that contains unpaired actines of subatrial spicules and occasionally radial diactines, which cross the thin choanoderm and protrude from the external surface of the sponge. The thin choanosome frequently lacks a typical leuconoid aquiferous system, and some doubt remains about the division between the genera Breitfussia and Jenkina.

Notes

Published as part of Borojevic, Radovan, Boury-Esnault, Nicole & Vacelet, Jean, 2000, A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea), pp. 203-263 in Zoosystema 22 (2) on pages 230-231, DOI: 10.5281/zenodo.5392175

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Linked records

Additional details

Biodiversity

Scientific name authorship
BrOndsted
Kingdom
Animalia
Phylum
Porifera
Order
Leucosolenida
Family
Jenkinidae
Genus
Jenkina
Taxon rank
genus
Taxonomic concept label
Jenkina BrOndsted, 1931 sec. Borojevic, Boury-Esnault & Vacelet, 2000