Periclimenes perryae Chace, 1942

Fransen, Charles H. J. M., 2023, The marine palaemonid shrimps (Crustacea, Deapoda, Caridea) of the Dutch Caribbean, Zootaxa 5387 (1), pp. 1-127 : 96-98

Periclimenes perryae Chace, 1942

( Figs. 64–65 , video 13)

Periclimenes perryae — Horká et al. 2016: supplementary table S1 ( Curaçao); Faasse 2016: 52 ( Sint Eustatius); Poupin 2018: 110 ( Sint Maarten).

Material examined. Curaçao: RMNH. CRUS.D.57058: 11 specimens; stn COA.17, Cas Abou , 12°13′40.30″N 69°05′30.40″W, 03.xi.2013, depth 27 m, scuba diving, on Astrophyton muricatum (Lamarck, 1816) , collected by B . T. Reijnen (photo COA.17 001–013) . OUMNH. ZC. 2019-06-23: 1 male, pocl. 2.0 mm; Sun Reef , 12°8′21.12″N 68°59′53.1594″W, depth 10 m, 17.ii.2015, from A. muricatum , leg. P. Wirtz & K. Wittman (fcn. 11) . Bonaire: RMNH. CRUS.D.58247: 1 specimen; stn BON.19, Hilma Hooker , 12°06.271′N 068°17.291′W, 30.x.2019, depth 5 m, scuba diving, on A. muricatum , collected by B.W. Hoeksema. RMNH. CRUS.D.58248: 1 specimen; stn BON.27, Red Slave , 12°01.592′N 068°15.063′W, 03.xi.2019, depth 6 m, scuba diving, on A. muricatum , collected by A.H.M. Ligthart. RMNH. CRUS.D.58249: 1 male, 1 ovigerous female; stn BON.33, Invisibles , 12°04.646′N 068°16.800′W, 6.xi.2019, depth 7 m, scuba diving, on A. muricatum , collected by C.H.J.M. Fransen (video 13) .

Remarks. The morphological characters of the present specimens agree well with the original description by Chace (1942) and figures provided by Holthuis (1951b). Rostrum ( Fig. 64A, B ) straight, slightly directed downward, reaching distal margin of distal segment of antennular peduncle; dorsal lamina not developed, with 7–8 dorsal teeth at equal distances, all on rostrum proper; ventral lamina straight or slightly concave with 1–2 small teeth distally. Hepatic tooth at level of antennular tooth, directed forward. Third abdominal segment not produced posteriorly. Telson ( Fig. 64D ) with 2 pairs of small dorsal spines at about 0.6 and 0.8 of telson length; lateral distal pair of same size as dorsal spines; posterior margin of telson ( Fig. 64E ) entire, without small triangular process. Basal segment of antennular peduncle ( Fig. 64C ) with distolateral tooth and additional 2 teeth on anterior margin. Maxilla with endite bilobed. Ischiomerus of third maxilliped without distomedial mobile spine. Second pereiopods dissimilar and unequal; fingers of major chela with pair of low teeth in proximal part of cutting edge each; movable finger curved, with distinct dorsal carina, fixed finger as broad as movable finger, ventral margin glabrous.Ambulatory pereiopods with propodus straight, with two ventral distally serrate spines in distal part ( Fig. 64F ) and two distoventral distally serrate spines. Dactylus of third pereiopod ( Fig. 64F ) with slightly concave flexor margin; accessory tooth distinct, subdistal and slender; dorsal margin with small scale-like structure at joint with unguis; unguis slender, about half length of corpus.

Ecology. The species is known to live in association with the basket star Astrophyton muricatum (Lamarck, 1816) ( Chace 1942; Horká et al. 2016; Faasse 2016; De Grave & Anker 2017; Poupin 2018).

Distribution. Known from scattered locations in the tropical western Atlantic: Florida ( Chace, 1942; Holthuis 1951b), Santa Marta, Colombia ( Criales 1984), Sint Eustatius ( Faasse 2016), Caribbean coast of Panama ( Felder et al. 2009; De Grave & Anker 2017), and Sint Maarten and Martinique ( Poupin 2018). Occurring in depths between 1 and 10 m. Previous record from Curaçao by Horká et al. (2016). Herein recorded for the first time from Bonaire.

Figures

FIGURE 64. Periclimenes perryae Chace, 1942, RMNH.CRUS.D.58249 (fcn. BON.33-3). A, C–F, ovigerous female, pocl. 2.9 mm; B, male pocl. 1.9 mm. A, B, rostrum; C, antennular peduncle, basal segment, distal part, dorsal view; D, telson; idem, tip; E, left third pereiopod dactylus. Scale bars: A–C=1.0 mm; D=0.5 mm; E, F =0.125 mm.

FIGURE 65. Periclimenes perryae Chace, 1942, stn COA.17, Curaçao, Cas Abou, 12°13′40.30″N 69°05′30.40″W, 3.xi.2013, depth 27 m, on Astrophyton muricatum (Lamarck, 1816), collected by B.T. Reijnen.A, lateral view; B, dorsal view. (Photographs by C.H.J.M. Fransen.)