Few and far apart: integrative taxonomy of Australian species of Gladiobela and Pagodibela (Conoidea : Raphitomidae) reveals patterns of wide distributions and low abundance

Type Article
Date 2021
Language English
Author(s) Hallan Anders1, Criscione FrancescoORCID1, Fedosov Alexander2, Puillandre Nicolas3
Affiliation(s) 1 : Australian Museum Res Inst, 1 William St, Sydney, NSW 2010, Australia.
2 : Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Leninski Prospect 33, RU-119071 Moscow, Russia.
3 : Univ Antilles, Sorbonne Univ, Inst Systemat Evolut Biodiversite ISYEB, CNRS,EPHE,Museum Natl Hist Nat, 57 Rue Cuvier,CP 26, F-75005 Paris, France.
Source Invertebrate Systematics (1445-5226) (Csiro Publishing), 2021 , Vol. 35 , N. 2 , P. 181-202
DOI 10.1071/IS20017
WOS© Times Cited 4
Abstract

The deep-sea malacofauna of temperate Australia remains comparatively poorly known. However, a recent influx of DNA-suitable material obtained from a series of deep-sea cruises has facilitated integrative taxonomic study on the Conoidea (Caenogastropoda : Neogastropoda). Building on a recent molecular phylogeny of the conoidean family Raphitomidae, this study focussed on the genera Gladiobela and Pagodibela (both Criscione, Hallan, Puillandre & Fedosov, 2020). We subjected a representative mtDNA cox1 dataset of deep-sea raphitomids to ABGD, which recognised 14 primary species hypotheses (PSHs), 9 of which were converted to secondary species hypotheses (SSHs). Following the additional examination of the shell and hypodermic radula features, as well as consideration of bathymetric and geographic data, seven of these SSHs were recognised as new to science and given full species rank. Subsequently, systematic descriptions are provided herein. Of these, five are attributed to Gladiobela (three of which are endemic to Australia and two more widely distributed) and two are placed in Pagodibela (one endemic to southern Australia and one widespread in the Pacific). The rarity of many 'turrids' reported in previous studies is confirmed herein, as particularly indicated by highly disjunct geographic records for two taxa. Additionally, several of the studied taxa exhibit wide Indo-Pacific distributions, suggesting that wide geographic ranges in deep-sea 'turrids' may be more common than previously assumed. Finally, impediments to deep-sea 'turrid' taxonomy in light of such comparative rarity and unexpectedly wide distributions are discussed.

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Hallan Anders, Criscione Francesco, Fedosov Alexander, Puillandre Nicolas (2021). Few and far apart: integrative taxonomy of Australian species of Gladiobela and Pagodibela (Conoidea : Raphitomidae) reveals patterns of wide distributions and low abundance. Invertebrate Systematics, 35(2), 181-202. Publisher's official version : https://doi.org/10.1071/IS20017 , Open Access version : https://archimer.ifremer.fr/doc/00688/79986/