Allopontonia iaini Bruce, 1972

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 : 623-624

Allopontonia iaini Bruce, 1972

Allopontonia iaini Bruce 1972, p 7 –11, Figures 1–5 ; Li 2000, p 1, Figure 1 ; Davie 2002, p 304.

Material examined

New Caledonia: (i) CORAIL 1, Lansdowne Bank , August 1988, 1 ovig. ♀ ( MNHN Na- 14798); (ii) MONTROUZIER, Koumac, reef outer slope, 10 October 1993, 1 ovig. ♀ (MNHN-Na 14799) .

Host

(ii) Pseudoboletia indiana (Michelin, 1862) [ Toxopneustidae , Echinoidea]. Remarks

The Lansdowne Bank specimen closely resembles those previously described. It is of normal size and in good condition and lacks only the tip of the rostrum. The rostrum has a dentition of at least eight dorsal and two ventral teeth and is of normal shape. Both second pereiopods are preserved and are markedly unequal, the minor second pereiopod slightly less than half the length of the very robust major pereiopod, which is about 1.75 times the carapace length of 4.75 mm.

The Koumac specimen is rather distorted and is noticably smaller, with carapace length of about 2.76 mm. The body appears to have been rather more strongly compressed than usual. One detached second pereiopod is preserved: all pereiopods are missing from the right side of the body.

The association with Pseudoboletia represents a new host record. The type material was collected in association with Salmaciella erythracis (H. L. Clark, 1912) . Other specimens have been associated with the genera Salmacis and Asthenosoma .

Not previously recorded from New Caledonia.

Distribution

Type locality: Heron Island . Also reported from Kenya, Zanzibar, Australia (Queensland), New Caledonia , and Mexico (Baja California) .

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 2. Harpiliopsis spinigera (Ortmann, 1880), male (MNHN-Na 15838). (a) Second pereiopod; (b) same, fingers.

Figure 3. Kemponia agag (Kemp, 1922), male (MNHN-Na 14877). (a) Carapace and anterior appendages; (b) antennal scale; (c) second pereiopod, ischium, merus, and carpus; (d) same, chela; (e) same, fingers; (f) same, article of carpus and chela; (g) proximal fingers; (h) third pereiopod, propod and dactyl; (i) same, distal propod and dactyl.

Figure 4. Kemponia ensifrons (Dana, 1852), ovigerous female (MNHN-Na 14891). (a) Carapace and anterior appendages; (b) anterior carapace; (c) antennule; (d) antenna.

Figure 5. Kemponia ensifrons (Dana, 1852), ovigerous female (MNHN-Na 14891). (a) Second pereiopod; (b) same, chela and carpus; (c) third pereiopod, propod and dactyl; (d) same, distal propod and dactyl.