Periclimenes granulimanus Bruce 1978
Creators: name: Ďuriš, Zdeněk
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Periclimenes
Periclimenes granulimanus

description: <i>Periclimenes granulimanus</i> Bruce, 1978 <i>Periclimenes granulimanus</i> Bruce, 1978: 237, Figs. 16–19. <i>—</i> Bruce 1983: 208. — Chace &amp; Bruce 1993: 57. <b>Type material.</b> Ov. female holotype cl 2.0 mm, MNHNP 2580 (not examined). <b>Material examined.</b> 4 females, St. MAL.16, Indonesia, Moluccas, Ambon, Ambon bay, N coast near Tawiri, 03°42'S 128°06'E; 16.XI.1996; 20 m depth; diving; from <i>Virgularia</i> sp. (Pennatularia); leg. C.H.J.M. Fransen, RMNH D 47551 (examined by C.H.J.M. Fransen). <b>Remarks.</b> The species, first reported in association with antipatharians from Madagascar, was originally described and illustrated by Bruce (1978). The specific granulation of the major chelipeds is discussed for other <i>Periclimenes</i> -like pontoniine shrimps in the remarks to the original description and, later, by the same author (Bruce 1990) in his comments for <i>Periclimenes tonga</i>. In the latter report, the author pointed out (p. 31) the fact that in <i>P. granulimanus</i>, “the distal propod and dactyl of the ambulatory [leg] appear to form a prehensile mechanism”. The prehensile structures are almost identical to those of <i>P. laevimanus</i> sp. nov., and are more thoroughly discussed in <b>Remarks</b> for <i>P. laevimanus</i> and <i>P. brucei</i> (above), and in the <b>Discussion</b> (below). <i>P. granulimanus</i> is closely similar to <i>P. laevimanus</i> sp. nov. Together with the major cheliped granulation noted above, this species also differs by stouter proportions of the cheliped: the palm is 5 times longer than deep and 3.5 times longer than the fingers, while the porportions are 6.6–8.0 times and 4.0–4.5 times, respectively, in adults of the new species, but in juveniles these relations may be approx. 3.5 and 1.8 times, respectively. The major second pereiopod carpus is subequal to the fingers in the female holotype of <i>P. granulimanus</i>, but approximately 2 times longer in adults of <i>P. laevimanus</i> sp. nov. (subequal in juveniles). The minor chela has 1 and 2 shallow teeth on the cutting edges of the fixed finger and the dactylus, respectively; these are lacking in the new species. No noticeable thoracic sternal structures were encountered in <i>P. laevimanus</i> sp. nov., while a small median tubercle was reported on the fourth and eighth sternites, and a shallow median notch on the fifth to seventh sternites in <i>P. granulimanus</i> (Bruce 1978). The accessory pigment spot and the arthrobranch on the third maxilliped were reported as lacking in the holotype of <i>P. granulimanus,</i> with the latter being possibly lost during dissecting of the holotype (Bruce 1978). Both these structures are present in other species of the <i>P. granulimanus</i> species group discussed in this work. The examination of the RMNH specimens of <i>P. granulimanus</i>, by C.H.J.M. Fransen (pers. comm.), prove that the accessory pigment spot was present as a very small dot, dorsally in the posterior margin of the cornea, but almost indistinguishable from the rest of the cornea. A small 2-lamellate arthrobranch is also present on the third maxilliped. <b>Color.</b> Not reported. <b>Host.</b> Unidentified antipatharian (Bruce 1978); a bushy hydroid, <i>Lytocarpus philippinus</i> (Kirchenpauer), 24 m (Bruce 1981); <i>Virgularia</i> sp. (Pennatularia) – new host, 20 m (Moluccas). <b>Distribution.</b> Tany Kely, northwest Madagascar (type locality); Heron Island, Great Barrier Reef, Australia; Ambon, Indonesia - new record.
description: Published as part of <i>Ďuriš, Zdeněk, 2010, Periclimenes laevimanus sp. nov. from Vietnam, with a review of the Periclimenes granulimanus species group (Crustacea: Decapoda: Palaemonidae: Pontoniinae) *, pp. 106-125 in Zootaxa 2372 (1)</i> on page 118, DOI: 10.11646/zootaxa.2372.1.12, http://zenodo.org/record/5308119
description: {"references": ["Bruce, A. J. (1978) A report on a collection of pontoniine shrimps from Madagascar and adjacent seas. Zoological Journal of the Linnean Society of London, 62, 205 - 290.", "Bruce, A. J. (1983) The pontoniine shrimp fauna of Australia. Australian Museum Memoir, 18, 195 - 218.", "Chace, F. A., Jr. &amp; Bruce, A. J. (1993) The caridean shrimps (Crustacea: Decapoda) of the Albatross Philippine Expedition, 1907 - 1910, part 6: Superfamily Palaemonoidea. Smithsonian Contributions to Zoology, 543, 1 - 152.", "Bruce, A. J. (1990) Periclimenes tonga sp. nov., a commensal shrimp associated with a scyphozoan host from Tonga (Crustacea: Decapoda: Palaemonidae). Micronesica 21, 23 - 32 (dated 1988).", "Bruce, A. J. (1981) Pontoniine shrimps of Heron Island. Atoll Research Bulletin, 245, 1 - 33."]}