The little shrimp that could: phylogeography of the circumtropical (Crustacea: Decapoda), reveals divergent Atlantic and Pacific lineages.

The banded coral shrimp, (Crustacea: Decapoda: Stenopodidea) is a popular marine ornamental species with a circumtropical distribution. The planktonic larval stage lasts ∼120-253 days, indicating considerable dispersal potential, but few studies have investigated genetic connectivity on a global scale in marine invertebrates. To resolve patterns of divergence and phylogeography of , we surveyed 525 bp of mitochondrial cytochrome oxidase subunit I (COI) from 198 individuals sampled at 10 locations across ∼27,000 km of the species range.