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Which H alitholus species ( C nidaria: H ydrozoa) inhabits the A rctic and high boreal A tlantic waters?
Author(s) -
Stepanjants Sofia,
Svoboda Armin
Publication year - 2013
Publication title -
marine ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.668
H-Index - 58
eISSN - 1439-0485
pISSN - 0173-9565
DOI - 10.1111/maec.12036
Subject(s) - hydroid (botany) , cnidaria , biology , type locality , nomen dubium , ecology , taxonomy (biology) , botany , coral
The binomen P erigonimus yoldiaearcticae Birula [Birula A., 1897] was established (as P erigonimus yoldiae‐arcticae ) for a hydroid species found predominantly on shells of the mollusk Y oldia arctica (now P ortlandia arctica ) in the W hite and K ara Seas. Its original description was incomplete, no medusa stage was described, no specific type locality was specified, and we know of the existence of no type specimens. Birula's nominal species cannot be distinguished from several other pandeids occurring at high latitudes of the northern hemisphere, and we regard P . yoldiaearcticae as a nomen dubium . By contrast, H alitholis cirratus Hartlaub, 1913 was founded on medusae obtained at S pitzbergen and in the B arents and B altic S eas, and its presumed hydroid discovered in the Baltic (the latter a region with no other known species of pandeid medusae). We examined material referable to H . cirratus from the K ara Sea, including both medusae and hydroids (on P ortlandia arctica ), and conclude that this is the species inhabiting the A rctic O cean and the high boreal A tlantic.