Salmoneus ortmanni ( Rankin, 1898 )

Anker, Arthur, 2010, The shrimp genus Salmoneus Holthuis, 1955 (Crustacea, Decapoda, Alpheidae) in the tropical western Atlantic, with description of five new species *, Zootaxa 2372 (1), pp. 177-205 : 199-201

publication ID	https://doi.org/ 10.11646/zootaxa.2372.1.18
DOI	https://doi.org/10.5281/zenodo.5314472
persistent identifier	https://treatment.plazi.org/id/2554563E-FF91-FB00-A780-FF4B03DEFCE1
treatment provided by	Felipe
scientific name	Salmoneus ortmanni ( Rankin, 1898 )
status

Treatment

Salmoneus ortmanni ( Rankin, 1898) View in CoL

( Figs. 12 View FIGURE 12 b-f, 13a, 14e)

Athanas ortmanni Rankin, 1898: 251 View in CoL .

Salmoneus ortmanni View in CoL . — Anker 2007: 23 View Cited Treatment .

For complete synonymy see Anker (2007).

Material examined. 1 non-breeding specimen (cl 4.0 mm, tl 11.4 mm), FLMNH UF Arthropoda 18688, Costa Rica, Caribbean coast, Cahuita, Puerto Vargas, under rocks and coral rubble on sand, near seagrass, 0.5–1 m depth, leg. A. Anker, 27.XI.2005 [fcn 05-111]; 1 breeding female (cl 2.7 mm), USNM 1124220 About USNM , Panama, Caribbean coast, Portobelo, 0.5–1 m depth, under rocks on sand, leg. A. Anker, 4.VIII.2007 [fcn 07- 225]; 1 breeding female (cl 4.3 mm), UP, Panama, Caribbean coast, Isla Grande, south side of island near village, under rocks, 0.3 m depth, leg. A. Anker [fcn 07-253]; 1 non-breeding specimen (cl 5.1 mm), USNM 1124221 About USNM , Panama, Caribbean coast, Bocas del Toro, Isla Colón, small bay between Big Creek and Playa Bluff, under rocks on coarse sand mixed with rubble and silt, 0.5 m depth, leg. A. Anker, A. Baeza & J. Vera Caripe, 19.XI.2006 [fcn 06-625]; 2 breeding specimens (cl 3.9 mm, 3.0 mm), 1 immature specimen (cl not measured), USNM 136104 About USNM , Mexico, Caribbean coast, Yucatan, Quintana Roo, Bahía de Ascensión, along shore near Suliman Point , Smithsonian-Bredin Expedition St. 85–60, less than 0.5 m, leg. W.L. Schmitt, F.C. Daiber, E.L. Bousfield & H.A. Rehder, 17.IV.1960; 1 breeding specimen (cl 4.2 mm, missing both P1), USNM 1125420 About USNM , Bermuda, Coney Island , 1–2 m depth, leg. unknown, 9.V.1976 [additional notes: Bermuda Biological Station Reference Collection 49–021–01, photograph of dead specimen available: 148 WES photo 94/16,17] .

Description. For description and illustrations see Anker (2007).

Size. cl 2.7–5.1 mm, tl of largest specimens at least 14.0 mm.

Colour in life. Uniform yolk-yellow or orange-yellow ( Fig. 14e View FIGURE 14 ).

Type locality. Nassau , New Providence, the Bahamas .

Distribution. Originally described from the Bahamas ( Rankin 1898), later reported from the western and southern Caribbean ( Chace 1972; Anker 2007; present study); Bermuda ( Verrill 1922; present study) and northeastern Brazil (Atol das Rocas) ( Anker 2007); herewith reported for the first time from several localities in Panama ( Isla Grande, Portobelo, Bocas del Toro) and Costa Rica (Cahuita).

Ecology. Near-shore sand flats, usually with seagrass and rubble, rocks, shells etc.; under rocks and in rubble at shallow depths (0.5–1.5 m).

Remarks. As mentioned above, S. ortmanni appears to be variable in the pilosity of the carapace and abdomen, as well as in the development of the rostral carina. For instance, the smaller specimen from Bahía de Ascensión and the specimen from Bermuda are distinctly more setose than their presumed conspecifics from Panama and Costa Rica, almost approaching condition typically found in S. wehrtmanni sp. nov. (see above). The carapace of most Panamanian specimens actually appears glabrous at first glance; only a few short setae can be seen by illuminating the carapace from the sides. The rostral carina appears to be better developed and reaching further posteriorly in the specimens from Bermuda and Atol das Rocas compared to those from Panama, in which the carina is virtually absent ( Fig. 12d View FIGURE 12 ). These differences cannot be satisfactorily explained at present time, but they strongly suggest the S. ortmanni populations are genetically sub-structured, calling for a molecular analysis of the entire S. ortmanni group, including S. carvachoi and two eastern Pacific forms identified as “ S. ortmanni ” in previous studies (e.g., Ríos 1992). The Pacific material of S. cf. ortmanni and S. cf. carvachoi is currently under study (Anker & Lazarus Agudelo, in prep.).