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A new Lamellibrachia species and confirmed range extension for Lamellibrachia barhami (Siboglinidae, Annelida) from Costa Rica methane seeps

TitleA new Lamellibrachia species and confirmed range extension for Lamellibrachia barhami (Siboglinidae, Annelida) from Costa Rica methane seeps
Publication TypeJournal Article
Year of Publication2018
AuthorsMcCowin M.F, Rouse GW
JournalZootaxa
Volume4504
Pagination1-22
Date Published2018/10
Type of ArticleArticle
ISBN Number1175-5326
Accession NumberWOS:000447939200001
Keywordscold seeps; control regions; deep sea; East Pacific; fields; gulf-of-mexico; hydrothermal vent; large phylogenies; mitochondrial genome; monterey bay; new species; papua-new-guinea; southwest pacific-ocean; Vestimentifera; vestimentiferan tubeworm annelida; zoology
Abstract

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 Glade with Atlantic and Mediterranean Lamellibrachia species. This suggests a vicariant event may have occurred after an Atlantic radiation of Lamellibrachia.

DOI10.11646/zootaxa.4504.1.1
Short TitleZootaxa
Student Publication: 
Yes
Student: 
sharknado