Tubuca alcocki

Tubuca alcocki
	Tubuca alcocki holotype, Thailand
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Crustacea
Class:	Malacostraca
Order:	Decapoda
Infraorder:	Brachyura
Family:	Ocypodidae
Subfamily:	Gelasiminae
Tribe:	Gelasimini
Genus:	Tubuca
Species:	T. alcocki
Binomial name
	Tubuca alcocki; Shih, Chan & Ng, 2018
Synonyms
	Gelasimus acutus Alcock 1900; Gelasimus dussumieri A. Milne-Edwards 1868; Uca angustifrons Lundoer 1974; Uca (Deltuca) [coarctata] urvillei Crane 1975; Uca urvillei Frith et al. 1976; Uca (Deltuca) urvillei Hogarth 1986; Uca (Deltuca) dussumieri Krishnan 1992; Uca (Tubuca) urvillei Beinlich and von Hagen 2006; Uca (Tubuca) acuta Trivedi et al. 2015; Tubuca urvillei Shih et al. 2016;

Tubuca alcocki is a species of fiddler crab. Its range includes most of the northern Indian Ocean, from western Thailand (facing the Andaman Sea), through the Bay of Bengal and India, to the Red Sea.[1][2]

Etymology

The specific name alcocki is in honor of Alfred William Alcock, the naturalist who recorded the species from India and Pakistan as Uca urvillei.[1]

Description

Carapace and legs brown or dark brown. Major cheliped with fingers white in adults and orange in young. Females with orange cheliped with blue tinge. Carapace of male is trapezoidal, smooth with distinct, narrow median groove. Anterolateral margin is acutely triangular. Major cheliped with dactylus usually longer than palm. Carapace of female is also trapezoidal. Anterolateral margin broadly triangular.[1]

Ecology

It is a mangrove species which lives sympatric with Austruca annulipes, Austruca bengali, Tubuca forcipata, Tubuca paradussumieri and Austruca iranica.[1]

References

Shih, Hsi-Te; Chan, K.K.; Ng, Peter K.L. (2018). "Tubuca alcocki, a new pseudocryptic species of fiddler crab from the Indian Ocean, sister to the southeastern African T. urvillei (H. Milne Edwards, 1852) (Crustacea, Decapoda, Brachyura, Ocypodidae)". ZooKeys (747). doi:10.3897/zookeys.747.23468.
Rosenberg, Michael S. (2019). "A fresh look at the biodiversity lexicon for fiddler crabs (Decapoda: Brachyura: Ocypodidae). Part 1: Taxonomy". Journal of Crustacean Biology. 39 (6).

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[Shih2018-1] Shih, Hsi-Te; Chan, K.K.; Ng, Peter K.L. (2018). "Tubuca alcocki, a new pseudocryptic species of fiddler crab from the Indian Ocean, sister to the southeastern African T. urvillei (H. Milne Edwards, 1852) (Crustacea, Decapoda, Brachyura, Ocypodidae)". ZooKeys (747). doi:10.3897/zookeys.747.23468.

[Rosenberg2019-2] Rosenberg, Michael S. (2019). "A fresh look at the biodiversity lexicon for fiddler crabs (Decapoda: Brachyura: Ocypodidae). Part 1: Taxonomy". Journal of Crustacean Biology. 39 (6).