Pseudunela

Pseudunela is a genus of minute sea slugs, acochlidians, shell-less marine or temporary brackish or brackish gastropod mollusks in the clade Acochlidiacea.

Pseudunela
Schematic drawing of a dorsal view of Pseudunela cornuta
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Acochlidiacea
clade Hedylopsacea[1]
Family:
Pseudunelidae

Rankin, 1979[2]
Genus:
Pseudunela

Salvini-Plawen, 1973[3]
Diversity[4]
4 species and inadequate data on other species

Pseudunela is the only genus in the family Pseudunelidae.[1] Pseudunela is the type genus of the family Pseudunelidae.[5]

Taxonomy

Pseudunelidae was placed within the superfamily Strubellioidea in the taxonomy of Bouchet & Rocroi (2005).[5]

Pseudunelidae was subsequently placed within the (unranked) Hedylopsacea by Schrödl & Neusser (2010).[1]

Species

These are the different species in the genus Pseudunela:[6]

  • Pseudunela cornuta (Challis, 1970) - type species of the genus Pseudunela, marine and temporary brackish[4]
  • Pseudunela eirene Wawra, 1988 - The description of Pseudunela eirene is brief and based on a single specimen with ganglia of the nervous system and stylets of copulatory organs studied on a whole-mount by light microscopy only. No histological sections were made, and the radula was studied light-microscopically after dissolving the soft parts and stylets. Information on other organ systems is absent, and no further specimens are available for study.[7] Marine species.[8]
  • Pseudunela espiritusanta Neusser & Schrödl, 2009[8] This species from Espiritu Santo Island in Vanuatu lives in brackish water[8]
  • Pseudunela marteli Neusser, Jörger & Schrödl, 2011 - marine[4]
  • Pseudunela viatoris Neusser, Jörger & Schrödl, 2011 - marine[4]

Cladogram

A cladogram based on sequences of mitochondrial 18S ribosomal RNA, 16S ribosomal RNA and cytochrome-c oxidase I (COI) genes showing phylogenic relations of the genus Pseudunela:[4]

Pseudunela
 

Pseudunela espiritusanta

 
 
 

Pseudunela marteli

 
 
 

Pseudunela cornuta

 
 

Pseudunela viatoris

 
 
 
 
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References

This article incorporates CC-BY-2.0 text from reference.[7]

  1. Schrödl M. & Neusser T. P. (2010). "Towards a phylogeny and evolution of Acochlidia (Mollusca: Gastropoda: Opisthobranchia)". Zoological Journal of the Linnean Society 158: 124-154. doi:10.1111/j.1096-3642.2009.00544.x.
  2. Rankin J. J. (1979) "A freshwater shell-less mollusc from the Caribbean: structure, biotics, and contribution to a new understanding of the Acochlidioidea" Royal Ontario Museum, Life Sciences Contributions, 116: 123 pp., Pseudunelidae is on the page 89.
  3. Salvini-Plawen L. von (1973). Z. Zool. Syst. Evol. Forsch. 11: 122.
  4. Neusser T. P., Jörger K. M. & Schrödl M. (2011). "Cryptic Species in Tropic Sands - Interactive 3D Anatomy, Molecular Phylogeny and Evolution of Meiofaunal Pseudunelidae (Gastropoda, Acochlidia)". PLoS ONE 6(8): e23313. doi:10.1371/journal.pone.0023313.
  5. Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
  6. Neusser, Timea P.; Jörger, Katharina M.; Schrödl, Michael (2011-08-31). "Cryptic Species in Tropic Sands - Interactive 3D Anatomy, Molecular Phylogeny and Evolution of Meiofaunal Pseudunelidae (Gastropoda, Acochlidia)". PLoS ONE. 6 (8). doi:10.1371/journal.pone.0023313. ISSN 1932-6203. PMC 3166138. PMID 21912592.
  7. Neusser T. P., Martin Heß M. & Schrödl M. (11 September 2009) "Tiny but complex - interactive 3D visualization of the interstitial acochlidian gastropod Pseudunela cornuta (Challis, 1970)". Frontiers in Zoology 2009, 6: 20. doi:10.1186/1742-9994-6-20
  8. Neusser T. P. & Schrödl M. (2009) "Between Vanuatu tides: 3D anatomical reconstruction of a new brackish water acochlidian gastropod from Espiritu Santo. Zoosystema 31(3): 453-469. PDF Archived 2011-06-12 at the Wayback Machine
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