WoRMS source details
McCowin, Marina F.; Rouse, Greg W. (2018). A new Lamellibrachia species and confirmed range extension for Lamellibrachia barhami (Siboglinidae, Annelida) from Costa Rica methane seeps. Zootaxa. 4504(1): 1-21.
333459
10.11646/zootaxa.4504.1.1 [view]
McCowin, Marina F.; Rouse, Greg W.
2018
A new Lamellibrachia species and confirmed range extension for Lamellibrachia barhami (Siboglinidae, Annelida) from Costa Rica methane seeps
Zootaxa
4504(1): 1-21
Publication
World Polychaeta Database (WPolyDb). Open access at Zootaxa
Lamellibrachia Webb, 1969 has eight currently recognized species reported from chemosynthetic environments in the Pacific, Atlantic, and Mediterranean. Of these, Lamellibrachia barhami Webb, 1969 has been reported in the eastern Pacific from Canada to Costa Rica. In this study, phylogenetic analyses of Lamellibrachia tubeworms sampled from the Costa Rica margin confirm the large geographic range of L. barhami and reveal a new Lamellibrachia species from a single methane seep between 999 and 1,040 meters. Lamellibrachia donwalshi sp. nov. differs genetically and morphologically from all congeneric species. Despite its geographic proximity to the eastern Pacific L. barhami , L. donwalshi sp. nov. formed a clade with Atlantic and Mediterranean Lamellibrachia species. This suggests a vicariant event may have occurred after an Atlantic radiation of Lamellibrachia .
East Pacific
Systematics, Taxonomy
Date
action
by
Lamellibrachia donwalshi McCowin & Rouse, 2018 (original description)
Holotype SIO SIO-BIC A8382, geounit Costa Rican part of the North Pacific Ocean, identified as Lamellibrachia donwalshi McCowin & Rouse, 2018
Distribution
Known from one site only. Authors: "Lamellibrachia donwalshi sp. nov. has only been recovered from a single small ... [details]
Etymology
authors: "Don Walsh was one of the first people to descend to the bottom of the Challenger Deep aboard the ... [details]
Type locality
Methane seep known as Mound 12, collected by HOV Alvin, Dive 4917, off Costa Rica, Eastern Pacific, ~1,000 meters ... [details]