Table 1. Locations of the eight seep sites sampled.

Eight seep sites include the depth of collections, number of individuals collected (N) and regions. Regions are defined by Cairns et al. (1993) and McMullin et al. (2010).

Seep name	Latitude	Longitude	Depth (m)	N	Region
GB543	27.268°N	93.109°W	528	8	West
GB544	27.259°N	93.089°W	610	10	West
GB647	27.200°N	92.256°W	932	3	Central
Bush Hill	27.470°N	91.305°W	528–570	11	Central
Brine Pool	27.430°N	91.170°W	640	5	Central
GC234	27.447°N	91.134°W	527	12	Central
MC751	28.194°N	89.798°W	441	14	East
VK826	29.158°N	88.016°W	476	14	East