On the troglobitic velvet worm Speleoperipatus spelaeus Peck, 1975 (Onychophora, Peripatidae): assessing the status of a Critically Endangered Jamaican invertebrate

The velvet worm Speleoperipatus spelaeus Peck, 1975 is one of the rarest velvet worm species reported, as it is only known from its type locality, Pedro Great Cave, Clarendon Parish, Jamaica. The type material of the species, the only four specimens available in known scientific collections, was obtained in the early 1970’s, and since then, no additional specimens have been available for research. More recently, observations of three probably conspecific specimens by the Jamaican Caves Organisation, not collected, have been made in a different location, Swansea Cave, Saint Catherine Parish. Here we report and document five specimens of this rare species from the type locality, Pedro Great Cave, as well as some observations about their behavior. Placing this species in a phylogenetic context should be attempted in the future, to better understand the significance of Speleoperipatus spelaeus and its evolutionary origins, its relationship to the Swansea Cave specimens, and to determine what are its closest relatives and whether those are other Jamaican species or velvet worms from other geographical areas.