Two new species of Gonodactylellus from the western Pacific (Gonodactylidae: Stomatopoda)

Two new Indo-West Pacific species of stomatopod crustacean, Gonodactylellus kandi, and Gonodactylellus barberi are described. Both new species belong to the group of species in Gonodactylellus united by the presence of upright conical spines at the base of the submedian (and usually also the intermediate) teeth of the telson, multiple posterior spines on the mid-dorsal telson carinae, and the absence of setae on the inner margins of the uropodal endopod and exopod (in most species of the group). This group of 'spinytelson' species is named the 'molyneux group'. Gonodactylellus barberi most closely resembles G. snidvongsi and G. molyneux but is distinguished from the former by the 3- instead of 2-segmented mandibular palp, and from the latter by the distinct rather than fused submedian denticles of the telson. Gonodactylellus kandi is the smallest known species of the genus, maturing at 10-12 mm TL and differs from other members of the molyneux group by the fully setose inner margins of the uropodal endopod and exopod and the unarmed ventrodistal margin of the proximal segment of the uropodal exopod.