Published August 26, 2024 | Version v1
Taxonomic treatment Open

Gustavus Ahyong & Ng 2009

  • 1. Universidade Federal de Pelotas (UFPEL), Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão, RS, 96010 - 610, Brazil. E-mail & Biological and Environmental Science & Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.

Description

Gustavus Ahyong & Ng, 2009

Type species. Gustavus mecognathus Ahyong & Ng, 2009.

Other species included. Gustavus holthuisae sp. nov.

Remarks. Števčić (2011) recognised a new tribe, Gustavini, placing it under the Aphanodactylinae in his concept of Asthenognathidae Stimpson, 1858. Whereas the morphological features of Gustavus, in particular the somewhat peculiar Mxp3, are unusual within Aphanodactylidae, members of this family are so diverse in form that a suprageneric grouping just for Gustavus would not be taxonomically meaningful, even with discovery of a second species of the genus (described below). In addition, the subtriangular Mxp3 ischium of Gustavus, being slender and distinctly tapering proximally, is a feature also present in Takedactylus Naruse & Maenosono, 2012. Takedactylus, however, has a completely different carapace form and much longer walking legs, the latter also with a distinctive dactylus armed with an accessory spine (cf. Naruse & Maenosono 2012; Naruse & Yoshida 2018).

Notes

Published as part of Ng, Peter K. L. & Anker, Arthur, 2024, A second species in the polychaete-associated crab genus Gustavus Ahyong & Ng, 2009 (Decapoda: Brachyura: Aphanodactylidae), pp. 369-380 in Zootaxa 5497 (3) on page 370, DOI: 10.11646/zootaxa.5497.3.3, http://zenodo.org/record/13618519

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Linked records

Additional details

Biodiversity

Scientific name authorship
Ahyong & Ng
Kingdom
Animalia
Phylum
Arthropoda
Order
Decapoda
Family
Aphanodactylidae
Genus
Gustavus
Taxon rank
genus
Taxonomic concept label
Gustavus Ahyong, 2009 sec. Ng & Anker, 2024

References

  • Ahyong, S. T. & Ng, P. K. L. (2009) Aphanodactylidae, a new family of thoracotreme crabs (Crustacea: Brachyura) symbiotic with polychaete worms. Zootaxa, 2289 (1), 33 - 47. https: // doi. org / 10.11646 / zootaxa. 2289.1.3
  • Stevcic, Z. (2011) Addition to the reclassification of brachyuran crabs (Crustacea: Decapoda: Brachyura). Part I. New taxa. Natura Croatica, 20, 125 - 139.
  • Naruse, T. & Maenosono, T. (2012) A new genus and species of Aphanodactylidae Ahyong & Ng, 2009 (Decapoda, Brachyura, Pinnotheroidea) from the Ryukyu Islands, Japan. In: Komatsu, H., Okuno, J. & Fukuoka, K. (Eds.), Studies on Eumalacostraca: a homage to Takeda Masatsune. Crustaceana Monographs, 17, 225 - 231. https: // doi. org / 10.1163 / 9789004202894 _ 019
  • Naruse, T. & Yoshida, R. (2018) Two new species of Aphanodactylidae (Crustacea: Decapoda: Brachyura) from the Ryukyu and Ogasawara Islands, Japan, with the establishment of a new genus. Tropical Zoology, 31 (1), 21 - 33. https: // doi. org / 10.1080 / 03946975.2017.1395163