Records of some rare Pontoniid Shrimps from Australian Waters, with remarks upon the Mouthparts of some species of the genus Periclimenes Costa, 1844

Recently made collections have indicated that the pontoniid shrimp fauna of the east coast of Australia, including the Great Barrier Reef, is still poorly known. Material obtained by the staff of the Australian Museum from their collections at One Tree Island and Heron Island in the Capricorn Group on the Great Barrier Reef has provided some interesting material new to the Australian fauna and their collections have provided specimens of Periclimenes lanipes which were collected by the Fisheries Investigation Ship "Endeavour", but not included in the report on the Decapoda Natantia by Schmitt (1926). With two exceptions the remaining species included in this report are also new to the Australian fauna and four are known only from the original type specimens. All species belong to genera known to live in association with various other marine invertebrates and where possible these have been identified to specific level. In this report the measurement of carapace length refers to the length from the posterior border of the orbit to the middle of the posterior border in the dorsal midline. I am sincerely grateful to Dr. R. B. Manning, U.S. National Museum (USNM) ; Dr. J. C. Yaldwyn and Dr. D. J. G. Griffin, Australian Museum (AM) and Mr. B. Campbell, Queensland Museum (QM) for permission to examine some of the specimens in their collections upon which this report is partly based. Unless otherwise stated, all material examined is from the author's collection. Periclimenes soror Nobili (fig. 1, 5a-b) Periclimenes soror Nobili, 1904: 232; Nobili, 1906: 50, pl. 2 fig. 6; Gordon, 1939: 395400, figs. 1-3; Jacquotte, 1964: 180-181 ; Bruce, 1965: 493; Bruce, 1967: 1167.