A. J. Bruce

Periclimenaeus species (Crustacea: Decapoda: Pontoniinae) from Hawaii

Two specimens of an undescribed species of pontoniine shrimp of the genus Periclimenaeus Borradaile 1915 from Maui Island, Hawaiian Islands, are described and illustrated, raising to three the number of species known from the Hawaiian Islands. The new species is remarkable for the greatly reduced molar process and sharp lateral cutting edge on the major second pereiopod dactyl and most closely resembles P. tchesunovi Ďuriš, 1990. Host animals not identified. Periclimenaeus devaneyi Bruce, 2010 also has its colouration described for the first time.

Periclimenaeus denticulodigitus sp. nov. (Crustacea: Decapoda: Palaemonidae: Pontoniinae), from Heron Island, Queensland, Australia

An unusual species of the genus Periclimenaeus Borradaile, 1915 (Crustacea: Decapoda: Palaemonidae Pontoniinae) from Heron Island, Queensland, Australia, collected by Dr Niel Bruce in 1979, is described and illustrated. Periclimenaeus denticulodigitus sp. nov., an ascidian associate was collected from coral reef at 7.0 m and presents some interesting new features. It increases to 17 the number of Periclimenaeus known from Heron Island, Queensland, and to 28 the number of species known from Australia. The new species has the second pereiopod fingers minutely denticulate and unique to the genus.

Periclimenaeus colemani sp. nov. (Crustacea; Palaemonidae; Pontoniinae) from Heron island, Queensland

A further new species of Periclimenaeus (Crustacea: Pontoniinae) from Heron Island, Queensland, Australia, is described and illustrated. Periclimenaeus colemani sp. nov., an ascidian associate, was collected from coral reef spur and groove zone and increases to 30 the numbers of Periclimenaeus known from Australia and to 17 the number of species known from Heron Island.

Cuapetes yapiensis sp. nov. (Crustacea: Decapoda: Pontoniinae), a new mangrove shrimp from Yap, Caroline Islands.

A new pontoniine shrimp species, Cuapetes yapiensis, from mangroves at Quamun, on Yap Island, Caroline Islands, is described and illustrated. Cuapetes yapiensis most closely resembles C. darwiniensis Bruce. Six species of Cuapetes are now known from the Caroline Islands.