Periclimenes harringtoni Lebour, 1949

Fransen, Charles H. J. M., 2023, The marine palaemonid shrimps (Crustacea, Deapoda, Caridea) of the Dutch Caribbean, Zootaxa 5387 (1), pp. 1-127 : 81-82

Periclimenes harringtoni Lebour, 1949

( Figs. 53–54 , video 12)

Periclimenes harringtoni — Humann et al. 2013: 111 ( Bonaire).

Material examined. Curaçao: RMNH. CRUS.D.58224: 1 ovigerous female; CAR.03, Sea Aquarium, 12°04.907′N 68°53.763′W, 26.iii.2014, depth 16 m, scuba diving, in Neofibularia nolitangere (Duchassaing & Michelotti, 1864) , collected by C. Rauch. RMNH. CRUS.D.58225: 2 specimens, CAR.03, Sea Aquarium, 12°04.907′N 68°53.763′W, 26.iii.2014, depth 19 m, scuba diving, in N. nolitangere , collected by C. Rauch. RMNH. CRUS.D.58226: 1 specimen, CAR.07, Kleine Knip, 12°20.475′N 69°09.154′W, depth unknown, scuba diving, in N. nolitangere , collected by C. Rauch. RMNH. CRUS.D.58227: 1 ovigerous female; CAR.07, Kleine Knip, 12°20.475′N 69°09.154′W, depth 8 m, scuba diving, in N. nolitangere , collected by C. Rauch. RMNH. CRUS.D.582281: ovigerous female; CAR.09, Sunset Waters, 12°16.046′N 69°07.657′W, depth 11 m, scuba diving, in N. nolitangere , collected by C. Rauch. RMNH. CRUS.D.58229: 1 ovigerous female, pocl. 2.6 mm, Slangenbaai, 10.iv.2017, depth 10 m, scuba diving, in N. nolitangere , collected by C.H.J.M. Fransen CF10A-3. RMNH. CRUS.D.58230: 1 non ovigerous female, pocl. 1.9 mm; 1 male, pocl. 2.7 mm, CF13A-1, Directors bay, 13.vi.2017, depth 11 m, scuba diving, in N. nolitangere , collected by C.H.J.M. Fransen (video 12). Stn CF13B, Tu gboat, 17.vi.2017, depth unknown, scuba diving, in N. nolitangere, C.H.J.M. Fransen (video 12), not collected. RMNH. CRUS.D.58230: 2 non-ovigerous females, pocl. 2.0 and 1.8 mm, CF17A-1, Habitat, 17.iv.2017, depth 5 m, scuba diving, in N. nolitangere , collected by C.H.J.M. Fransen (video 12). Bonaire: RMNH. CRUS.D.57905: 1 ovigerous female, pocl. 4.5 mm, stn BON.37, Andrea I, 12°11.285′N 068°17.795′W, 6.xi.2019, depth 5 m, scuba diving, in N. nolitangere , collected by C.H.J.M. Fransen (video 12). Stn BON.45, Klein Bonaire: South Bay, 12°09.001′N 068°19.234′W, 8.xi.2019, depth 10 m, scuba diving, in N. nolitangere, C.H.J.M. Fransen (video 12), not collected.

Remarks. The morphological characters of the present specimens agree well with the original description by Lebour (1949) and redescription by Holthuis (1951b). Rostrum ( Fig. 53A–D ) straight, short, reaching middle of second segment of antennular peduncle; dorsal lamina developed, with 5–7 dorsal teeth (number increases with size) at equal distances except for posteriormost tooth which is situated at somewhat more distance, proximal 1–2 teeth postorbital; ventral lamina slightly concave with 1 or 2 small teeth (number increases with size) subdistally. Antennal tooth small ( Fig. 53A ); hepatic tooth ( Fig. 53A ) more robust, situated slightly below level of antennular tooth, directed forward. Third abdominal segment slightly produced posteriorly. Telson ( Fig. 53E ) with 2 pairs of rather large dorsal spines at about 0.6 and 0.7 of telson length; lateral distal pair of slightly smaller than dorsal spines; posterior margin of telson ( Fig. 53F ) with acute triangular median process. Basal segment of antennular peduncle with distolateral tooth, without additional teeth on anterior margin. Maxilla with endite bilobed. Ischiomerus of third maxilliped without distomedial mobile spine. Second pereiopods dissimilar and unequal; major chela with fingers very short, one-fourth to one-fifth of length of palm; fingers with 2 distinct teeth in about middle of cutting edges; dactylus with longitudinal carina. Ambulatory pereiopods slender, with propodi straight, without spines on flexor margin except for distoventral one; dactyli very long and slender ( Fig. 54A, B ), biunguiculate; accessory tooth very small; unguis slender, distinctly longer than corpus.

Colour (video12). Translucent with a redding tinge, covered with small and larger white spots over entire body. Eyestalks with white band anterodorsally. Larger white spots at joints of appendages. Fingers of second pereiopods white.

Ecology. The species is a symbiont of the ‘Touch-me-not sponge’, N. nolitangere ( Humann et al. 2013, Poupin 2018).

Distribution. Recorded from scattered locations in the tropical western Atlantic: Harrington, Bermuda ( Lebour 1949), Dry Tortugas, Florida ( Holthuis 1951b) , West Flower Garden Bank ( Pequegnat & Ray 1974), St Vincent and Bonaire ( Humann et al. 2013), and Martinique ( Poupin 2018). Known to occur in depths between 1 and 119 m depth. The species is herein recorded from Curaçao for the first time.

Figures

FIGURE 53. Periclimenes harringtoni Lebour, 1949. A, E, F, RMNH.CRUS.D.57905; B–D, RMNH.CRUS.D.58230. A, rostrum, ovigerous female, pocl. 4.5 mm; B, idem, female, pocl. 2.1 mm; C, idem, female, pocl. 2.3 mm; D, idem, male, pocl. 2.7 mm; E, telson; F, idem, tip. Scale bars: A=2.0 mm; B–D=1.0 mm; E=1.25 mm; F=0.125 mm.

FIGURE 54. Periclimenes harringtoni Lebour, 1949. A, left third pereiopod dactylus, ovigerous female, pocl. 4.5 mm, RMNH. CRUS.D.57905; B, idem, male, pocl. 2.7 mm, RMNH.CRUS.D.58230. Scale bar: A=0.25 mm; B=0.125 mm.