A new species of the micro snail genus Heleobia (Caenogastropoda, Cochliopidae) from Bahia, Brazil

Authors

  • Luiz Ricardo L. Simone Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). São Paulo, SP, Brasil. http://orcid.org/0000-0002-1397-9823
  • George Vita de Oliveira Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). São Paulo, SP, Brasil.

DOI:

https://doi.org/10.11606/1807-0205/2021.61.43

Keywords:

Mollusca, Anatomy, Morphology, Taxonomy

Abstract

The prey of a recent described characid fish, so far endemic of the small lake Pratinha (Iraquara, Bahia, Brazil), a small (~2.5 mm) lentic gastropod, revealed to be a new (possible endemic) species. It is herein formally described as Heleobia brucutu sp. nov. The description includes anatomical features, revealing interesting idiosyncrasies such as egg laying attached to shell, and penis lacking glands, but with terminal papilla. The new species appears to be endemic of that small lake as much as its fish predator. As the species is now formally described and named, protective efforts must be implemented.

Downloads

Download data is not yet available.

References

International Union for Conservation of Nature and Natural Resources (IUCN). 2016. Guidelines for using the IUCN Red List categories and criteria. Available: https://www.iucnredlist.org/resources/redlistguidelines. Access: 04/04/2021.

Hershler, R. & Thompson, F.G. 1992. A review of the aquatic gastropod subfamily Cochliopinae (Prosobrancha: Hydrobiidae). Malacological Review, (suppl. 5): 1-140.

Kabat, A.R. & Hershler, R. 1993. The prosobranch snail family Hydrobiidae (Gastropoda: Rissooidea): review of classification and supraspecific taxa. Smithsonian Contributions to Zoology, 547: 1-94.

Koch, E.; Martin, S.M. & Ciocco, N.F. 2015. A molecular contribution to the controversial taxonomical status of some freshwater snails (Caenogastropoda: Rissooidea, Cochliopidae) from the Central Andes desert to Patagonia. Iheringia Serie Zoologia, 105(1): 69-75.

Lima, F.C.T. & Gerhard, P. 2001. A new Hyphessobrycon (Characiformes: Characidae) from Chapada Diamantina, Bahia, Brazil with notes on its natural history. Ichthyological Exploration of Freshwaters, 12(2): 105-114.

Lydeard, C. & Cummings, K.S. 2019. Freshwater mollusks of the world: a distribution atlas. Baltimore, Johns Hopkins University Press. 256p.

Oliveira, S.R.; Neves, E.; Mariano, E.; Mugnai, R. & Johnsson, R. 2019. A possible natural dispersal mechanism among juveniles of the bioinvader snail Melanoides tuberculata (Thiaridae: Gastropoda) by floatation. Journal of Conchology, 43(4): 337-343.

Silva, M.C.P. 2003. Hydrobiidae (Gastropoda, Neotaenioglossa, Rissooidea) da planície costeira do Rio Grande do Sul, Brasil. PhD Thesis. Porto Alegre, Universidade Federal do Rio Grande do Sul. 382p. Available: https://lume.ufrgs.br/bitstream/handle/10183/3446/000400850.pdf?sequence=1&isAllowed=y.

Silva, M.C.P. & Veitenheimer-M., I.L. 2004. Nova espécie de Heleobia (Rissooidea, Hydrobiidae) da planície costeira do sul do Brasil. Iheringia, Série Zoologia, 94(1): 89-94.

Simone, L.R.L. 2006a. Land and Freshwater Molluscs of Brazil. São Paulo, EGB/FAPESP. 390p.

Simone, L.R.L. 2006b. Accounts on the phylogeny of the Rissooidea (= Hydrobioidea) and Littorinoidea, based on some American representatives, as base for a future taxonomic revaluation (Mollusca, Caenogastropoda). Strombus, 13(2): 18-26.

Simone, L.R.L. 2011. Phylogeny of the Caenogastropoda (Mollusca), based on comparative morphology. Arquivos de Zoologia, 42(4): 161-323.

Simone, L.R.L. 2012. A new genus and species of cavernicolous Pomatiopsidae (Mollusca, Caenogastropoda) in Bahia, Brazil. Papéis Avulsos de Zoologia, 52(40): 515-524.

Simone, L.R.L. & Moracchioli, N. 1994; Hydrobiidae (Gastropoda: Hydrobioidea) from the Ribeira Valley, S.E. Brazil, with descriptions of two new cavernicolous species. Journal of Molluscan Studies, 60: 445-459.

Simone, L.R.L. & Rolán, E. 2021. A new genus and three new species of freshwater cochliopids (Caenogastropoda) from Goiás, Brazil. Iberus, 39(1): 1-21.

Zanata, A.M.; Lima, F.C.T.; Di Dario, F. & Gerhard, P. 2017. A new remarkable and critically endangered species of Astyanax Baird & Girard (Characiformes: Characidae) from Chapada Diamantina, Bahia, Brazil, with a discussion on durophagy in the Characiformes. Zootaxa, 4232(4): 491-510.

Downloads

Published

2021-04-19

Issue

Section

Original Article

How to Cite

Simone, L. R. L. de, & Oliveira, G. V. de. (2021). A new species of the micro snail genus Heleobia (Caenogastropoda, Cochliopidae) from Bahia, Brazil. Papéis Avulsos De Zoologia, 61, e20216143. https://doi.org/10.11606/1807-0205/2021.61.43