Dardanus jacquesi Asakura & Hirayama 2002

Celia, Maria, Malay, D., Miller, Allison K. & Komai, Tomoyuki, 2021, Hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea) of the Northern Marianas, including new records and an updated checklist, Micronesica 2021 (1), pp. 1-29 : 10

publication ID

https://doi.org/ 10.5281/zenodo.12118323

DOI

https://doi.org/10.5281/zenodo.12118588

persistent identifier

https://treatment.plazi.org/id/03B74D7E-FF9F-AD4D-468A-FA8CAD82F8E6

treatment provided by

Felipe

scientific name

Dardanus jacquesi Asakura & Hirayama 2002
status

 

Dardanus jacquesi Asakura & Hirayama 2002 View in CoL

Fig. 4a View Fig

Material. 1 male, SL 6 mm (SIO-BIC C14503), Guguan Island , station AKM-GUG-03 ; 1 female, SL 8.5 mm (SIO-BIC C14509), Pagan Island , station AKM-PAG-02 ; 1 female, SL 3.4 mm (SIO-BIC C14502), no station info ; 2 males and 1 female SL 4–9 mm (SIO-BIC C14504), no station info .

Remarks. When alive, the mesial faces of the palms and carpi of the chelipeds were conspicuously reflective, a character that faded upon preservation. Reflective surfaces may function for communication, as has also been reported in deep-water portunoid crabs in the genus Ovalipes ( Parker et al. 1998) . Color patterns otherwise fit closely with South African specimens of D. jacquesi , described by Landschoff (2018). Dardanus jacquesi is very similar to D. dearmatus , but can be differentiated from the latter on the basis of several characters, particularly in the slenderness of the propodus of the left third pereopod ( Asakura & Hirayama 2002). On the basis of this character, and in the stoutness of the chelipeds, the Marianas specimens better agree with D. jacquesi . However, the pleonal plates were not visible in the present female specimens, and the spination on the inner face of the left cheliped is less pronounced than in the type material as described by Asakura & Hirayama (2002).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Diogenidae

Genus

Dardanus

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