Periclimenes incertus Borradaile, 1915

Li, Xinzheng & Bruce, Alexander J., 2006, Further Indo-West Pacific palaemonoid shrimps (Crustacea: Decapoda: Palaemonoidea), principally from the New Caledonian region, Journal of Natural History 40 (11 - 12), pp. 611-738 : 695-696

Periclimenes incertus Borradaile, 1915

Periclimenes (Cristiger) incertus Borradaile 1915, p 210 ; Borradaile 1917, p 364, Plate 53, Figure 7 .

Periclimenes (Periclimenes) impar Kemp 1922, p 147 –149, Figures 16 , 17 , Plate 3, Figure 1 .

Periclimenes (Periclimenes) incertus: Holthuis 1959, p 193 –194.

Periclimenes incertus: Chace and Bruce 1993, p 114 ; Bruce 1996, p 234; Li 2000, p 193, Figure 244; Davie 2002, p 327.

Material examined

Madagascar: (i) northwest coast, S. W. Îles Mitsio, 30 m, sand, trawl, coll. A. Crosnier, February 1960, 3 ovig. ♀♀ (MNHN-Na 14910); (ii) northwest coast, Tany Kely, Nosy Be’ 20 m, on sponge, coll. P. Laboute, 19 July 1970, 41 spms (8 ovig. ♀♀) (MNHN-Na 14911).

Solomon Islands: (iii) SALOMON 1, stn CP 1810, 9 ° 47.79S, 160 ° 50.59E, 53 m, 3 October 2001, 1 ovig. ♀ (MNHN-Na 15586) . New Caledonia: (iv) lagoon, Îlot Maitre , scuba, 25 m, with sponge, coll. C. Vadon, 5 September 1978, 3♀♀ (2 ovig.) (MNHN-Na 15836); (v) same, 2 „„, 9 ovig. ♀♀ (MNHN-Na 15899); (vi) lagoon, channel of Îlot Maitre, scuba, 25 m, with sponge, coll. C. Vadon, 5 September 1978, 1 „, 8 ovig. ♀♀ (MNHN-Na 15861); (vii) lagoon, Five Mile Channel, scuba, 15–20 m, associated with alcyonarian Nephtia sp., coll. C. Vadon, 13 September 1978, 1 „, 4 ovig. ♀♀ (MNHN-Na 15816); (viii) lagoon, channel of Îlot Maitre, stn 21, scuba, 25 m, with sponge, coll. C. Vadon, 19 September 1978, 3 „„, 6 ovig. ♀♀ (MNHN-Na 15855); (ix) lagoon, channel of Îlot Maitre, scuba, 25 m, with sponge, coll. C. Vadon, 19 September 1978, 1 ovig. ♀ (MNHN-Na 15835); (x) same, 4 „„, 8♀♀ (4 ovig.) (MNHN-Na 15845); (xi) lagoon, Seiche croissant Reef, scuba, 9 m, with coral, coll. C. Vadon, 29 September 1978, 1 „, 1 ovig. ♀ (MNHN- Na 15900); (xii) lagoon, coll. C. Vadon, 4 October 1978, 6 ovig. ♀♀ (MNHN-Na 15844); (xiii) lagoon, southwest, 22 ° 19.419S, 166 ° 20.899E, 20 m, scuba, with sponge, coll. I. Takeuchi, 9 November 1995, 1♀, 1 spm (abdomen lost) (MNHN-Na 15907); (xiv) Îlot Maitre, 22 ° 19.359S, 166 ° 25.859E, 20 m, scuba, with sponge, coll. I. Takeuchi, 10 November 1995, 17 „„, 13♀♀ (2 ovig.) (MNHN-Na 15820); (xv) Îlot Maitre, stn 82, 22 ° 19.619S, 166 ° 24.079E, 10 m, coll. I. Takeuchi, 14 November 1995, 33 spms (13 ovig. ♀♀) (MNHN-Na 15877); (xvi) lagoon (Seiche Croissant), seagrass, small trawl, coll. Richer de Forges, 6 May 1998, 4 „„, 1♀ (with a bopyrid), 12 ovig. ♀♀ (MNHN-Na 15806) .

Hosts

(ii) Rhizochalina sp. ; (viii)? Siphonochalina sp. ; (xii) Clathrya astroderma [Porifera]. (vii) Nephtia sp. [Alcyonaria].

Remarks

Previously reported from Madagascar, from Baie d’Ambaro ( Bruce 1977c) and from Tany Kely ( Bruce 1978a). The Solomon Islands record represents the greatest depth from which this species has so far been reported. The Tany Kely specimens are largely juveniles: the second pereiopods, in those specimens in which they are still both attached, are distinctly unequal. The Ampombilava specimen lacks both second pereiopods but can be safely identified by the characteristic ambulatory dactyl. The association with Rhizochalina represents a new host record. Periclimenes incertus has been frequently noted as an associate of sponges. Previously reported hosts include species of the genera Acarnus , Clathria, Desmopsamma , Dysidea, Oceanapta , Petrosia , Siphonochalina , and Spirastrella ( Bruce 1976b) ; Arenochalina and Leucetta ( Bruce 1983d) ; and Callyspongia ( Bruce 1988c) .

Distribution

Type locality: South Nilandu Atoll , Maldives . Also known from Yemen, Kenya, Zanzibar, Tanzania, Madagascar, Sri Lanka, Andaman Islands , Singapore, Philippines, Indonesia, Australia (Western Australia, Northern Territory, Queensland), and New Caledonia .

Figures

Figure 1. Palaemonetes atrinubes Bray, 1976, ovigerous female (MNHN-Na 14843). (a) Carapace and anterior appendages; (b) anterior carapace; (c) distal part of proximal peduncular segment; (d) antennal scale; (e) distal telson; (f) mandible; (g) first pereiopod; (h) same, chela; (i) second pereiopod; (j) same, chela; (k) third pereiopod; (l) same, propod and dactyl; (m) same, distal propod and dactyl.

Figure 7. Mesopontonia brevicarpus, new species. (a, d–g) Holotype ovigerous female; (b) paratype male; (c) juvenile (MNHN-Na 14824). (a) Carapace and anterior appendages; (b, c) carapace; (d) antennule; (e) first pereiopod; (f) same, chela; (g) same, apexes of fingers.

Figure 16. Periclimenes crosnieri, new species, holotype female (MNHN-Na 14943), body, lateral view.

Figure 17. Periclimenes crosnieri, new species. (a, c–k) Holotype female; (b) paratype female (MNHN-Na 14943). (a) Anterior carapace; (b) carapace; (c) right eye, lateral view; (d) telson; (e) right antennule; (f) same, peduncle, medial view; (g) right antenna; (h) mandible; (i) maxilla; (j) second maxilliped; (k) third maxilliped.