Ancylomenes tosaensis
Creators: name: Bruce, A. J.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Ancylomenes
Ancylomenes tosaensis

description: <i>Ancylomenes tosaensis</i> (Kubo, 1951) (Fig. 4) <i>Periclimenes (Ancylocaris) tosaensis</i> Kubo, 1951: 268–271, figs. 7–8. <i>Periclimenes tosaensis</i>. <i>—</i> Hayashi 1986: 100–101, 261, pl. 61. — Li 2000: 243–244, fig. 323. — Li <i>et al</i>. 2005: 548– 549, fig. 33. — Bruce 2008; 15–16, fig. 9, 14D. <i>Ancylomenes tosaensis</i>. — Okuno &amp; Bruce, 2010: 101. <b>Material examined</b>. (i) 1 male, CL 3.3 mm, FRV <i>Soela</i>, stn NWS–16, B4, Northwest Shelf, Western Australia, 19°04.3’S 118°50.5’E, 80 m, sledge, 27 April 1983, NTM Cr015053. <b>Remarks</b>. The single specimen has a rostral dentition 1+8/2 (Fig. 4A), with the epigastric tooth separated by a larger interval from the first rostral tooth than between remaining teeth, both distal ventral teeth very small, exactly as illustrated by Li <i>et al</i>. (2005): plumose ventral setae particularly long (Fig. 4A). The proximal dorsal surface of the stylocerite also has numerous plumose setae. The basicerite has a small acute disto-dorsal tooth (Fig. 4A). The interocular process is small and rounded. The single second pereiopod has the fingers subequal to the palm length, dactylus and fixed finger both unarmed; the carpus also subequal to the palm length. The third ambulatory pereiopod has the dactylus (Fig. 4C) about 0.22 of the propodus length, 5.4 times longer than the proximal width, dorsal margin smoothly convex, without setae, ventral margin smoothly concave, unguis not clearly demarcated, about 0.3 of corpus length; propodus (Fig. 4B) about 0.68 of CL, 13.5 times longer than deep, disto-ventral angle oblique, with several simple setae disto-dorsally and a pair of slender unequal pre-terminal spines proximo-ventrally, lateral spine almost half the dactylus length, twice distal propodus width, medial spine about 0.6 of medial spine length, ventral margin with distal pair of one long and one very short spines and two small single spines. <b>Colouration.</b> (i) From field notes: mainly transparent, rostrum transparent, third abdominal tergite with anterior red spot and posterior white transverse bar, antennular peduncle with yellow spots distally on each segment, scaphocerite transparent, first pereiopod similar to second, purple much less intense, second pereiopod chelae with palm white, hinge region and proximal part of fingers deep purple, more distal fingers feebly purplish, carpus yellow, distally purple, merus and ischium similar, ambulatory pereiopods with dactyli purple, propodi yellowish outlined with purple-red, coxae pale yellow, distal two thirds of telson white, with anterolateral red patch; uropodal exopod with distal two thirds white, with large distal purple eyespot, endopod with distal three fourths white, proximal fourth reddish. <b>Distribution.</b> Type locality: Usa, Tosa Bay, Shikoku, Japan. Previously reported from the Northwest Shelf, from 100 m by Bruce (2008). Also known from Kü Channel, (Sakamoto &amp; Hayashi 1977) and Amakusa Island, Japan (Fujino 1978); the South China Sea (Bruce 1966, 1979, 2003; Li &amp; Bruce 2006; Li <i>et al.</i> 2005) and East China Sea (Li 2006). Reports from the Seychelle Islands, (Bruce 1976), Indonesia, Papua New Guinea and the Philippines (Debelius 2001) are dubious. The ovigerous female Fijian specimen, from 144-150 m, referred to <i>P. tosaensis</i> by Li &amp; Bruce (2006), a perfect specimen, has clearly been misidentified as the ambulatory dactyli have well developed accessory teeth. The specimen has been re-examined and is now considered to be referable to <i>A. tenuirostris</i> (Bruce 1991).
description: Published as part of <i>Bruce, A. J., 2010, Ancylomenes kuboi and A. okunoi spp. nov. (Decapoda: Pontoniinae), from the Australian Northwest Shelf, Vietnam and the Philippines *, pp. 169-176 in Zootaxa 2372 (1)</i> on pages 174-175, DOI: 10.11646/zootaxa.2372.1.17, http://zenodo.org/record/5305309
description: {"references": ["Kubo, I. (1951) Some macrurous decapod crustacea found in Japanese waters, with descriptions of four new species. Journal of Tokyo University of Fisheries, 38, 259 - 289.", "Hayashi, K. - I. (1986) Periclimenes tosaensis Kubo, 1951. In: Baba, K., Hayashi, K. - I &amp; Toriyama, M. (Eds), Crustaceans from Continental Shelf and Slope around Japan. Tosho Printing Co. Ltd., Tokyo, pp. 100 - 101, 261, pl. 61.", "Li, X. (2000) Catalog of the genera and species of Pontoniinae Kingsley, 1878 (Decapoda, Palaemonidae). Xueyuan Press, Beijing, 319 pp.", "Li, X., Bruce, A. J. &amp; Manning, R. B. (2005) Some palaemonid shrimps (Crustacea: Decapoda) from northern South China Sea, with descriptions of two new species. The Raffles Bulletin of Zoology, 52 (2), 513 - 553.", "Bruce, A. J. (2008) Palaemonoid shrimps from the Australian Northwest Shelf. Zootaxa, 1815, 1 - 24.", "Okuno, J. &amp; Bruce, A. J. (2010) Designation of Ancylomenes gen. nov., for the ' Periclimenes aesopius species group' (Crustacea: Decapoda: Palaemonidae), with the description of a new species and a checklist of the congeneric species. Zootaxa 2372, 85 - 105.", "Sakamoto, T. &amp; Hayashi, K. - I. (1977) Prawns and shrimps collected from the Kii Strait by small type trawlers. Bulletin of the Japanese Society of Scientific Fisheries, 43, 1259 - 1268.", "Fujino, T. (1978) Palaemonidae and other of Macrura. In: Kikuchi, T. &amp; Miyake, S. (Eds), Fauna and flora of the sea around the Amakusa Marine Biological Laboratory. Part II. Decapod Crustacea (revised edition). Contributions from the Amakusa Marine Biological Laboratory, Kyushu University, 245, 19 - 25. [In Japanese].", "Bruce, A. J. (1966) Notes on some Indo-Pacific Pontoniinae, I. Periclimenes tosaensis Kubo. Crustaceana, 10 (1), 15 - 22, figs. 1 - 4.", "Bruce, A. J. (1979) Records of some Pontoniinid Shrimps from the South China Sea. Cahiers de l'Indo-Pacifique, 1 (2), 215 - 248.", "Bruce, A. J. (2003) The Pontoniine Shrimp Fauna of Hong Kong and the South China Sea (Crustacea: Decapoda: Palaemonidae). In: Morton, B. (ed.), Perspectives on Marine Environment Change in Hong Kong and Southern China, 1977 - 2001 Proceedings of an International Workshop Reunion Conference, Hong Kong 21 - 26 October 2001. Hong Kong University Press, Hong Kong, pp. 209 - 257.", "Li, X., &amp; Bruce A. J. (2006) Further Indo-West Pacific palaemonoid shrimps (Crustacea: Decapoda: Palaemonoidea), principally from the New Caledonian region. Journal of Natural History, 40 (11 - 12), 611 - 738.", "Debelius, H. (2001) Crustacea Guide of the World. IKAN Unterwasserarchiv, Frankfurt, 321 pp.", "Bruce, A. J. (1991) Shallow water Palaemonoid shrimps from New Caledonia (Crustacea: Decapoda). In: Richer de Forges, B., (ed.), Le Benthos des fonds meubles des lagons de Nouvelle-Caledonie, 1. Etudes et Theses; Paris, ORSTOM, pp. 221 - 279."]}