A new genus for the small shore crab previously known as Brachynotus spinosus (H. Milne Edwards, 1853) (Crustacea: Brachyura: Varunidae), with two new species from southern Australia and Samoa-Reference-Cited by-同舟云学术

A new genus for the small shore crab previously known as Brachynotus spinosus (H. Milne Edwards, 1853) (Crustacea: Brachyura: Varunidae), with two new species from southern Australia and Samoa

Published:2024-07-04 Issue:1 Volume:5476 Page:66-81
ISSN:1175-5334
Container-title:Zootaxa
language:
Short-container-title:Zootaxa

Author:

DAVIE PETER J.F.^ORCID,NG NGAN KEE

Abstract

The Australian southern temperate shore crab known as “Brachynotus spinosus” is found to be an endemic new species. The true B. spinosus (H. Milne Edwards, 1852), described from the Solomon Islands, is considered to be known only from its type locality in tropical Melanesia. A record identified as this species from Samoa in western Polynesia in 1891, is also here described as a new species. The temperate and two tropical sister-species are closely similar morphologically, and are placed into a new genus, Parvonotus. Parvonotus gen. nov. is separated from species of Brachynotus De Haan, 1833, and Hemigrapsus Dana, 1852, based on carapace and male pleon characters. Parvonotus spinosus comb. nov., P. samoensis sp. nov. and P. meridionalis sp. nov. can be separated on differences in carapace shape, leg proportions, and in the case of the latter two species, male pleon shape.

Publisher

Magnolia Press

Reference25 articles.

1. Asakura, A. & Watanabe, S. (2005) Hemigrapsus takanoi, new species, a sibling species of the common Japanese intertidal crab H. penicillatus (Decapoda: Brachyura: Grapsoidea). Journal of Crustacean Biology, 25, 279–292. https://doi.org/10.1651/C-2514

2. Barnard, K.H. (1955) Additions to fauna-list of South African Crustacea and Pycnogonida. Annals of the South African Museum, 43 (1), 1–107.

3. Dana, J.D. (1851) Conspectus Crustaceorum quae in Orbis Terrarum circumnavigatione, Carolo Wilkes e Classe Reipublicae Foederatae Duce. Crustacea Grapsoidea, (Cyclometopa, Edwardsii). Proceedings of the Academy of Natural Sciences of Philadelphia, V (X), 247–254.

4. Davie, P.J.F. (2002) Crustacea: Malacostraca: Eucarida (Part 2): Decapoda – Anomura, Brachyura. In: Wells, A. & Houston, W.W.K. (Eds.), Zoological Catalogue of Australia. Volume 19.3B. CSIRO Publishing, Melbourne, pp. i–xiv + 1–641.

5. De Haan, W. (1833–1849) Crustacea. Fasc. 1–8. In: von Siebold, P.F. (Ed.), Fauna Japonica sive Descriptio Animalium, quae in Itinere per Japoniam, Jussu et Auspiciis Superiorum, qui Summum in India Batava Imperium Tenent, Suscepto, Annis 1823–1830 Collegit, Notis, Observationibus et Adumbrationibus IIlustravit. Lugduni-Batavorum, Leiden, pp. i–xxi + vii–xvii + ix–xvi + 1–243, pls. 1–55 + A–Q, circ., pl. 2.