Synalpheus herricki Coutière, 1909

Material examined. Barbados: 2 ovigerous females, 4 non-ovigerous individuals (VIMS 08BR8101–5), Cluff Reef, from Aiolochroia crassa . 2 ovigerous females, 4 non-ovigerous individuals (VIMS 08BR1501–2, 1601, 2101–2), Spawnee Reef, from A. crassa . 1 ovigerous female, 5 non-ovigerous individuals (VIMS 08BR8901–3), Thunder Bay, from A. crassa . Largest ovigerous female, CL 6.46 mm, largest non-ovigerous individual, CL 5.33 mm.

Color. In Barbados S. herricki had a drab, non-descript body color; ovigerous females had grass-green to brownish-green developing ovaries and embryos.

Hosts and ecology. In Barbados, S. herricki only occurred in the common sponge Aiolochroia crassa .

Distribution. Florida (Coutière 1909); Gulf of Mexico (Coutière 1909; Dardeau 1984); Belize (Ríos & Duffy 2007), Curaçao (Hultgren et al. 2010); possibly Brazil (Christoffersen 1998).

Remarks. Many of the S. herricki collected in Barbados were juveniles. Some individuals had abdominal bopyrid parasites.