The sponge-dwelling snapping shrimps (Crustacea, Decapoda, Alpheidae, Synalpheus) of Discovery Bay, Jamaica, with descriptions of four new species Author Iii, Kenneth S Macdonald Author Hultgren, Kristin Author Duffy, Emmett text Zootaxa 2009 2199 1 57 journal article 10.5281/zenodo.189568 c668ee01-6eff-451a-9b96-be6f14b35edc 1175-5326 189568 Synalpheus brevifrons Chace Figure 4 Material examined. Jamaica : Non-ovigerous individual ( VIMS 08JAM0706), fore-reef (near M1 channel marker), Discovery Bay, from canals of Aiolochroia ( Pseudoceratina ) crassa . Non-ovigerous individual, ovigerous female ( VIMS 08JAM4501,02), fore-reef (near M1 channel marker), Discovery Bay, host unknown. MaxCL ovigerous female: 3.05 mm . MaxCL non-ovigerous individual: 2.51 mm . Color. Translucent, distal portion of major chela gold; embryos and ovaries bright green. Hosts and ecology. Synalpheus brevifrons in Belize has typically been found inhabiting the canals of a soft, filmy, grey-brown sponge that lines the cavities of rocks and the canals of the sponge Aiolochroia (Pseudoceratina) crassa (see Color plate 7A). It is possible that the Jamaican specimens had also been associated with this cryptic sponge species. Distribution. Dominica ( Chace 1972 ); Belize (Macdonald et al. 2006; Ríos & Duffy 2007 ); Jamaica (this study). Remarks. While specimens of S. brevifrons from Jamaica do not differ morphologically from those found in Belize , they do consistently differ from the female holotype figured by Chace (1972) : the female specimens from Belize and Jamaica have hooks on the ventral margin of the third through fifth pleura and deeper adrostral sinuses on the frontal margin ( Fig. 4 ).