Trichopagurus

Komai, Tomoyuki, 2013, Additional records of the pagurid hermit crab genus Trichopagurus de Saint Laurent, 1968 (Crustacea: Decapoda: Anomura), with description of a new species from the Philippines, Zootaxa 3670 (2), pp. 274-282 : 280

Key to species of Trichopagurus

In the following key, non-dichotomous characters are included with brackets.

1. Chelipeds and ambulatory legs distinctly setose. Carpus of right cheliped subcylindrical, dorsomesial margin not delimited. [Carpus of left cheliped with dorsomesial spines]................................. T. trichophthalmus ( Forest, 1954)

- Chelipeds and ambulatory legs only sparsely setose. Carpus of right cheliped flattened dorsoventrally.................. 2

2. Palm of right cheliped with scattered low tubercles on dorsal surface. Carpus without spines on dorsomesial margin. [Carpus of left cheliped with spines on dorsolateral and dorsomesial margins...................... T. asper Komai & Poupin, 2012

- Palm of right cheliped almost smooth on dorsal surface, carpus with spines on dorsomesial margin..................... 3

3. Carpus of left cheliped without conspicuous spines on dorsal surface. Dactylus of left third pereopod moderately slender, 10–11 times longer than broad............................................. T. macrochela Komai & Osawa, 2005

- Carpus of left cheliped armed with spines on dorsolateral and dorsomesial margins. Dactylus of left third pereopod very slen- der, about 14 times longer than broad..................................................... T. tenuidactylus n. sp.