Open Access Open Access  Restricted Access Subscription or Fee Access

Additions to the Indonesian crab fauna of the genus Mariaplax Rahayu & Ng, 2014, and notes on Hexapus timika Rahayu & Ng, 2014 (Crustacea, Decapoda, Brachyura, Hexapodidae)



Hexapus timika Rahayu & Ng, 2014 is redescribed based on newly collected male and female specimens from Papua, Indonesia. Three new species from Jakarta Bay and Sunda Strait, Indonesia, are added to the genus Mariaplax, the richest genus in the family Hexapodidae, hitherto having 14 species. Mariaplax pitrai n. sp. has the carapace covered by small, closely-spaced tubercles and long ambulatory legs, resembling M. chenae Rahayu & Ng, 2014 but easily separated by the position of female vulvae. Mariaplax hispida n. sp. is unique for the presence of short stiff setae on the outer face of the chelipeds and pereopods 2−4. Mariaplax sundaica n. sp. is characterized by the broad carapace, covered entirely by tubercles, the longitudinal grooves present only on the meri of pereopods 2 and 3. A key to the species of Mariaplax is provided.



Crustacea, Brachyura, Hexapodidae, crab, new species, Mariaplax, Indonesia

Full Text:

PDF (15MB)


Doflein, F. (1904) Brachyura. In: Wissenschaftliche Ergebnisseder Deutschen Tiefsee-Expedition auf dem Dampfer Valdivia 1898–1899. Band 6. Verlag von Gustav Fischer, Jena, pp. i–xiv, 1–314, figs. 1–68, pls. 1–58.

Fabricius, J.C. (1798) Supplementum Entomologiae systematicae. Apud Proft et Storch, Hafniae, 572 pp.

Haan, W. de (1833–1850) Crustacea. In: 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 illustravit P.F. de Siebold. Conjunctis studiis C.J. Temminck et H. Schlegel pro Vertebratis atque W. de Haan pro Invertebratis elaborata Regis aupicus edita. P. F. v. Siebold. Lugundi-Batavorum, Leiden, Decas II, 25–64, pls. 9–15, 17, C, D.

Man, J.G. de (1888) Bericht über die von Herrn Dr. J. Brock im indischen Archipel gesammelten Decapoden und Stomatopoden. Archiv für Naturgeschichte, Berlin, 53 (1), 289–600, pls. 11–22.

Ng, P.K.L. & Rahayu, D.L. (2015) Notes on Hexapodidae (Crustacea, Brachyura) from Indonesia and Malaysia, with description of a new species of Mariaplax Rahayu & Ng, 2014, from Lombok, Indonesia. Zootaxa, 3981 (1), 125–137.

Rahayu, D.L. & Ng, P.K.L. (2014) New genera and new species of Hexapodidae (Crustacea, Brachyura) from the Indo-West Pacific and east Atlantic. Raffles Bulletin of Zoology, 62, 396–483.

Sankarankutty, C. (1975) On a new species of Hexapus de Haan (Decapoda, Goneplacidae) from Cochin. Crustaceana, 28, 1–6.

Tesch, J.J. (1918) The Decapoda Brachyura of the Siboga Expedition II. Goneplacidae and Pinnotheridae. Siboga Expeditie Monographie, 39C (1), 149–295, pls. 7–18.

Velip, D.T. & Rivonker, C.U. (2015) Hexapus bidentatus sp. nov. (Crustacea: Decapoda: Brachyura: Hexapodidae), a new species from Goa, west coast of India. Marine Biology Research, 11 (1), 97–105. [validly published and dated 1 July 2014]



  • There are currently no refbacks.

ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand