Notobranchaeidae

The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called "sea angels".[1][2]

Notobranchaeidae
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Euopisthobranchia
clade Gymnosomata
Superfamily:
Clionoidea
Family:
Notobranchaeidae

(Pelseneer, 1886)
Genera and species

See text

Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks[3] are holoplanktonic.[4][5]

Morphology

While they are not particularly strong swimmers, the foot of these organisms are modified it to wing-like structures, called parapodia that they employ for locomotion.[5] Additionally, like other Pteropods of the order Gymnosomata,[6] Notobrachaeidae lack shells entirely as adults.[7][8] However, they do possess a shell earlier on in their lives.[8] They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually possess buccal cones as well.[9]

Behavior

Like other members of the clade Gymnosomata, Notobrachaeidae are highly specialized holoplanktonic carnivores.[10] In other words, they spend their entire lives hunting in the water column and cannot swim against the column.[10] Also like other members of this clade, Notobrachaeidae feed are very specific prey, with a species in this clade usually specializing in hunting one specific genus of thecosomes, which are also known as "sea butterflies" and form a sister clade to Gymnosomata with the primary difference being how adults of that clade possess shells into adulthood while Gymnosomata do not.[8][10]

Distribution

Members of this family are found globally throughout the upper reaches of the water column, in the pelagic zone, most commonly the epipelagic zone.[8] Following the trend of Pteropods in general, they tend to have the highest species diversity tropical and subtropical latitudes but are less abundant under these conditions.[8] Conversely, they are more abundant but possess less variety in terms of species closer to the north and south poles.[8] However, even in the tropics, they generally appear in high concentrations, resulting in them frequently playing important roles in major role in planktonic food webs.[4][5][11]

Genera and species

Genera and species in the family Notobranchaeidae include:

Genus: Notobranchaea Pelseneer, 1886

  • Notobranchaea bleekerae van der Spoel & Pafort-van Iersel, 1985
    • Distribution : Oceanic
  • Notobranchaea grandis Pruvot-Fol, 1942
    • Distribution : Oceanic
    • Length : 15 mm
  • Notobranchaea hjorti (Bonnevie, 1913)
  • Notobranchaea inopinata Pelseneer, 1887
    • Distribution : Oceanic
    • Length : 5 mm
  • Notobranchaea longicollis (Bonnevie, 1913)
  • Notobranchaea macdonaldi Pelseneer, 1886
    • Distribution : Bermuda, Oceanic
    • Length : 5 mm
  • Notobranchaea tetrabranchiata Bonnevie, 1913
    • Distribution : Oceanic
    • Length : 16 mm
  • Notobranchaea valdiviae Meisenheimer, 1905
Genera brought into synonymy
  • Microdonta Bonnevie, 1913: synonym of Notobranchaea Pelseneer, 1886 (invalid: junior homonym of Microdonta Dejean, 1835 [Coleptera]; Schleschia is a replacement name)
  • Prionoglossa Tesch, 1950: synonym of Notobranchaea Pelseneer, 1886
  • Schleschia Strand, 1932: synonym of Notobranchaea Pelseneer, 1886
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References
  1. Karlsson, Lars. Opisthobranchia: A taxonomic and biological review with emphasis on the families Chromodorididae and Phyllidiidae together with field notes from South East Sulawesi, Indonesia (Undergraduate thesis in biology). University of Linköping.
  2. Spoel, S. van der; Pafort-Van Iersel, T. (1985). "Note on the taxonomy of the family Notobranchaeidae and description of Notobranchaea bleekerae n. sp., a species new to science (Gastropoda, Pteropoda)". Basteria. 49: 29–36.
  3. Burridge, Alice; Hörnlein, Christine; Janssen, Arie; Hughes, Martin; Bush, Stephanie; et al. (June 2017). "Time-calibrated molecular phylogeny of pteropods". PLOS ONE. 12 (6): e0177325. Bibcode:2017PLoSO..1277325B. doi:10.1371/journal.pone.0177325. PMC 5467808. PMID 28604805. ProQuest 1908757804.
  4. Angulo-Campillo, Orso; Aceves-Medina, Gerardo; Avedaño-Ibarra, Raymundo (2011). "Holoplanktonic mollusks (Mollusca: Gastropoda) from the Gulf of California, México". Check List. 7 (3): 337–342. doi:10.15560/7.3.337.
  5. Sanvicente, Laura (2014). "The holoplanktonic Mollusca from the southern Gulf of Mexico Part 2: pteropods". Cahiers de Biologie Marine. 55: 241–258 – via ResearchGate.
  6. Taylor, D.; Sohl, N. (1962). "An Outline of Gastropod Classification" (PDF). Malacologia. 1 (1): 7–32 – via Native Fish Lab of Marsh & Associates LLC.
  7. Ossenbrügger, Holgen (2010). "Distribution patterns of pelagic gastropods at the Cape Verde Islands" (PDF). Helmholtz Centre for Ocean Research, Kiel. Retrieved April 15, 2019.
  8. Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10.
  9. Spoel, S. van der; Newman, L.; Estep, K. (n.d.). "Family Notobranchaeidae". Marine Species Identification Portal. Retrieved April 15, 2019.
  10. Lemus, E., Sanvicente-Añorve, L., Hermoso-Salazar, M, Flores-Coto, C. (2014). "The holoplanktonic Mollusca from the southern Gulf of Mexico Part 2: pteropods" (PDF). Cahiers de Biologie Marine. 55: 241–258 – via ResearchGate.
  11. Ballesteros, M.; Madrenas, E.; Pontes, M. (n.d.). "Gymnosomata". OPK Opistobranquis. Retrieved May 3, 2019.
  • Bouchet, P., Rocroi, J.-P. (2005). Classification and nomenclature of gastropod families. Malacologia. 47(1-2): 1-397 ISBN 3-925919-72-4.
  • MolluscaBase (2019). MolluscaBase. Notobranchaeidae Pelseneer, 1886. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=23080 on 2019-04-16
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M. J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Patrimoines Naturels. 50: 180-213
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