The marine palaemonid shrimps (Crustacea, Deapoda, Caridea) of the Dutch Caribbean Author Fransen, Charles H. J. M. text Zootaxa 2023 2023-12-15 5387 1 1 127 https://mapress.com/zt/article/download/zootaxa.5387.1.1/52482 journal article 10.11646/zootaxa.5387.1.1 1175-5334 10698994 0AD29F74-D349-4E12-8CA4-310275A847B3 Periclimenes bowmani Chace, 1972 (figs. 39–41) Periclimenes crinoidalis — Horká et al . 2016 : supplementary table 1 ( Curaçao ), not Periclimenes crinoidalis Chace, 1969 . Material examined . Curaçao : RMNH . CRUS .D.57056: 1 ovigerous female, pocl. 2.5 mm , R =8/4; 1 male , pocl. 1.8 mm , R =7/3; stn COA . 04, Blauwbaai , 12°08′05.70″N 68°59′03.50″W , 02.xi.2013 , depth 10 m , on Davidaster rubiginosus (Pourtalès, 1869) (photo COA .04 054), collected by B . T . Reijnen (photo B. T . Reijnen 020–032) . RMNH . CRUS .D.58170: 1 specimen , pocl. 1.8 mm , R =8/3; stn CUR.03, south coast, Hilton Reef , 12°07′19.5″N 068°58′07.8″W , 27.iv.2005 , depth 7.1 m , scuba diving, on Nemaster grandis A.H. Clark, 1909 , collected by N. Snijders (fcn. g025) . Remarks . The morphological characters of the present specimens agree well with the original description by Chace (1972) . Rostrum ( Fig. 39A–C ) straight, slightly directed downward, reaching midlength of distal segment of antennular peduncle; dorsal lamina not developed, with 8 dorsal teeth at equal distances, proximal tooth postorbital; ventral lamina slightly concave with 3 small teeth distally. Hepatic tooth ( Fig. 39C ) slightly below level of antennular tooth, directed obliquely downward. Third abdominal segment ( Fig. 39D ) not posteriorly produced. Telson ( Fig. 39E ) with 2 pairs of small dorsal spines at about 0.5 and 0.75 of telson length; lateral distal pair slightly more robust than dorsal spines; posterior margin of telson ( Fig. 39F ) with small triangular process; this process was not figured nor mentioned by Chace (1972) . Basal segment of antennular peduncle ( Fig. 39A ) with distolateral tooth and additional 2 teeth on anterior margin ( 3 in holotype ( Chace 1972 )). Maxilla with endite bilobed. Ischiomerus of third maxilliped without distomedial mobile spine. Second pereiopods slightly dissimilar and unequal; fingers unarmed, movable finger without dorsal carina; fixed finger much broader than movable finger, typically with fringe of setae ventrally. Ambulatory pereiopods with propodus ( Fig. 40A ) curved with flexor margin concave, finely crenulate with short mobile spinules. Dactylus of third pereiopod ( Fig. 40B ) with concave flexor margin with series of small denticles, denser and increasing in size towards unguis; dorsal margin of corpus with scale like ornamentation at joint with unguis; unguis slender, about half length of corpus. FIGURE 39 . Periclimenes bowmani Chace, 1972 , RMNH.CRUS.D.58170, female, pocl. 1.8 mm. A, carapace and anterior appenages, lateral view; B, idem, dorsal view; C, rostrum lateral view; D, abdomen, lateral view; E, telson; F, idem, tip. Scale bars: A, B, D=2.0 mm; C=1.0 mm; E=0.5 mm; F=0.125 mm. FIGURE 40 . Periclimenes bowmani Chace, 1972 , RMNH.CRUS.D.58170 (fcn. CUR.03), female, pocl. 1.8 mm. A, third right pereiopod; B, idem, dactylus and distal part propodus. Scale bar: A=0.5 mm; B=0.125 mm. FIGURE 41 . Periclimenes bowmani Chace, 1972 , RMNH.CRUS.D.57056, stn COA.04, Curaçao, Blauwbaai, 12°08′05.70″N 68°59′03.50″W, 2.xi.2013, depth 10 m, on Davidaster rubiginosus (Pourtalès, 1869) . (Photograph by B.T. Reijnen.) Colour ( Fig. 41 ). Largely translucent with orange markings on eyestalks, antennulae and posterior part of abdomen and tailfan. Ecology . The species has been recorded in association with the crinoids D. rubiginosus by Chace (1972) and Criales (1984) , and Tropiometra carinata (Lamarck, 1816) by Chace (1972) . The species is here recorded for the first time from the crinoid N. grandis . Distribution . Known from very few locations in the tropical western Atlantic: Saint Lucia ( Chace, 1972 ); Santa Marta, Colombia ( Criales 1984 ); Islas del Rosario, Columbia ( Corredor et al ., 1979 ); and Martinique and Guadeloupe ( Poupin, 2018 ); in depths between 2 and 53 m . Recorded from Curaçao by Horká et al. (2016) as P. crinoidalis .