Synalpheus chacei Duffy, 1998

Anker, Arthur, Pachelle, Paulo P. G., Grave, Sammy De & Hultgren, Kristin M., 2012, 3598, Zootaxa 3598 (1), pp. 1-96 : 33

publication ID	https://doi.org/ 10.11646/zootaxa.3598.1.1
publication LSID	lsid:zoobank.org:pub:74562879-7AB4-42D7-B894-09BFA4885324
persistent identifier	https://treatment.plazi.org/id/041D87E9-9737-FF9C-FF7C-5FF3FD28FB18
treatment provided by	Felipe
scientific name	Synalpheus chacei Duffy, 1998
status

Treatment

Synalpheus chacei Duffy, 1998 View in CoL View at ENA

( Fig. 21 View FIGURE 21 )

Synalpheus chacei Duffy 1998: 389 View in CoL , figs 1–5.

Zuzalpheus chacei — Ríos & Duffy 2007: 16 View Cited Treatment , pl. 2.

Synalpheus bousfieldi Chace 1972: 86 View in CoL (partim) (not S. bousfieldi Chace, 1972 View in CoL ).

Material examined. Belize: 3 colony members, OUMNH. ZC.2012-07-068, Carrie Bow Cay, in Lissodendoryx colombiensis , coll. E. Tóth, 18.07.2005 [fcn 05-192]; 8 colony members, OUMNH. ZC.2009-01-118, Carrie Bow Cay , north-eastern patch reef, 1648.346’N 8804.928’W, in unidentified sponge, coll. S. De Grave et al., 21.02.2009 [fcn CBC-083] . Panama: 1 colony member, MNHN-IU-2010-4165, Bocas del Toro , Isla Colón, Punta Mono, Ground Creek, sponges, 3–4 m, coll. J.A. Vera Caripe, 15.11.2006 [fcn 06-586*]; 1 colony member, RMNH D54870, same collection data [fcn 06-587*]; 1 ov. female, 2 colony members, MNHN-IU-2010-4119, Bocas del Toro , Isla Colón, Punta Caracol, 1–3 m, in sponge ( L. colombiensis or another sponge), coll. A. Anker, J.A. Baeza, 28.04.2007 [fcn 07-153B*]; 17 colony members, RMNH D54869, same collection data [fcn 07-145B] .

Description. For detailed description and illustrations see Duffy (1998); see also Ríos & Duffy (2007).

Size range. Colony members, 2.5–2.8 mm cl; female, 3.1 mm cl.

Colour in life. Semitransparent with pale yellowish tinge; ovaries and fresh eggs pale yellowish-pinkish ( Fig. 21 View FIGURE 21 ); also see colour photograph in Ríos & Duffy (2007).

Type locality. Carrie Bow Cay , Belize .

Distribution. Western Atlantic: Caribbean Sea: Belize [Carrie Bow Cay], British Virgin Islands [ Virgin Gorda], Panama [Bocas del Toro, San Blas Islands] ( Duffy 1998; Ríos & Duffy 2007; present study; see map in Fig. 51 View FIGURE 51 ).

Ecology. Shallow reef-rubble and associated habitats rich in sponges, depth range 2–20 m ( Duffy 1998); obligate symbiont of several demosponges: Agelas clathrodes , Hyattella intestinalis , Hymeniacidon sp. , Lissodendoryx cf. strongylata , and Niphates amorpha ( Duffy 1992, 1998; Ríos & Duffy 2007); living in social groups of several dozen to more than 80 individuals (= colony members), with only one or a few ovigerous females ( Duffy 1998; Ríos & Duffy 2007).

Remarks. The most important distinguishing character of S. chacei is the presence of two rows of gambarelloid setae on the minor cheliped ( Duffy 1998; Ríos & Duffy 2007). This socially living species is presently not known from outside the Caribbean Sea.