Franciscideres gen. nov - a new, highly aberrant kinorhynch genus from Brazil, with an analysis of its phylogenetic position

Author(s)

Dal Zotto, Matteo ^[1] ; Di Domenico, Maikon ^[2] ; Garraffoni, Andre ^[3] ; Sorensen, Martin V. ^[4]

Affiliation

^[1] Univ Modena & Reggio Emilia, Dept Life Sci, Modena - Italy

^[2] Univ Estadual Campinas, Inst Biol, Zool Museum, Campinas, SP - Brazil

^[3] Univ Fed Vales Jequitinhonha & Mucuri, Biol Sci Dept, Belo Horizonte, MG - Brazil

^[4] Univ Copenhagen, Nat Hist Museum Denmark, DK-2100 Copenhagen - Denmark

• Document type: Journal article
• Source: SYSTEMATICS AND BIODIVERSITY; v. 11, n. 3, p. 303-321, SEP 1 2013.
• Web of Science Citations: 22

Abstract

A new genus and species of Kinorhyncha, Franciscideres kalenesos gen. et sp. nov., is described from tidal and subtidal sandy habitats in Brazil. The new genus and species is characterized by an extremely flexible trunk without pachycycli that appears perfectly circular in cross-section, segments 1, 2 and 11 consisting of closed rings and 3 to 10 of single, bent plates with midventral articulations, a neck without placids that resembles an additional segment, densely packed scale-like, cuticular hairs, and a terminal segment with a middorsal spine and two sets of lateral terminal spines, but no midterminal spine. Phylogenetic analyses of 18S rRNA of Franciscideres kalenesos gen. et sp. nov. and 47 other kinorhynch ingroup taxa suggest that the new genus is a basal homalorhagid, whereas comparison of morphological characters indicates affinities between the new genus and the peculiar cyclorhagid Cateria. http://zoobank.org/urn:lsid:zoobank.org:pub:64E29D97-DE1D-4511-8683-C969 DD2EED43 (AU)

• FAPESP's process: 11/21289-3 - Taxonomy and diversity of marine meiofauna
• Grantee: Gustavo Fernandes Camargo Fonseca
• Support Opportunities: Organization Grants - Scientific Meeting
• FAPESP's process: 12/08581-0 - INTERSTITIAL ANNELIDS: SISTEMATIC AND PHYLOGENY OF NEGLECTED FAUNA
• Grantee: Maikon Di Domenico
• Support Opportunities: Scholarships in Brazil - Post-Doctoral