%0 Journal Article
%T Oligodendrorhynchus hesperides gen. et sp. n. (Heteronemertea) from the Bellingshausen Sea
%A Fernando ¨˘ngel Fern¨˘ndez-Alvarez
%A Nuria Anad¨Žn
%J Polish Polar Research
%@ 2081-8262
%D 2012
%I 
%R 10.2478/v10183-012-0006-3
%X A new genus and species of heteronemertean from the Antarctic (Bellingshausen Sea), Oligodendrorhynchus hesperides, is described and illustrated. Some morphological features with major systematic significance are following: the mode of branching of the proboscis and its low number of terminal branches; the lack of horizontal lateral cephalic slits but in their place a pair of shallow epidermal depressions; a gelatinous amorphous connective stratum between the outer longitudinal and circular muscle layers; the presence of a rhynchocoelic nerve; isolated fibres of the rhynchocoel circular muscle layer interwoven with bundles of the adjacent body-wall inner longitudinal muscle fibres in the intestinal region. Other anatomical characters which can also be used to distinguish the new taxon from existing heteronemertean species that have a branched proboscis are also discussed.
%K Antarctic
%K Nemertea
%K branched proboscis
%K Oligodendrorhynchus
%U http://versita.metapress.com/content/d3243653210756m5/?p=8e8311ac34a44d9babd5eda5c635c5de&pi=5