Two new species of serpulid polychaetes (Annelida) from the Barents Sea

Although Scandinavian Arctic polychaete fauna has been extensively investigated, new species are still being found in the Barents Sea. Polychaetes of the family Serpulidae are calcareous tubeworms that are most abundant at low latitudes and less common in Arctic and Antarctic waters. Because recent phylogenetic data indicate that the family Spirorbidae is a clade nested inside Serpulidae, spirorbins are treated here as subfamily Spirorbinae and their traditionally recognized subfamilies are thus lowered to the tribes Paralaeospirini, Spirorbini, Circeini, Romanchellini, Pileolariini and Januini. Here we report two new serpulid species, a filogranin Protis akvaplani sp. n. and a spirorbin Bushiella ( Bushiella ) barentsii sp. n. collected from off the northern Norwegian coast. Protis akvaplani differs from other species of within the genus by its tube with a high longitudinal keel, six thoracic chaetigerous segments, and short thoracic membranes ending after the 3rd segment. Generic diagnosis of the genus Protis has been emended. Bushiella ( B. ) barentsii differs from other species of the subgenus Bushiella by morphology of the opercular talon of operculum, incomplete fusing of primary operculum with brood chamber, and large tubes (up to 5 mm in coil diameter) with 1-2 distinct longitudinal ridges.

[1]  M. Greenacre,et al.  Benthic fauna and functional traits along a Polar Front transect in the Barents Sea – Advancing tools for ecosystem-scale assessments , 2012 .

[2]  K. J. Bush,et al.  Tubicolous Annelids of the Tribes Sabellides and Serpulides from the Pacific Ocean , 2010 .

[3]  R. Dales,et al.  Spirorbidae (Polychaeta Sedentaria) from Alaska to Panama , 2009 .

[4]  E. Kupriyanova,et al.  Taxonomy of Serpulidae (Annelida, Polychaeta): The state of affairs , 2009 .

[5]  C. Bleidorn,et al.  Phylogenetic relationships of Serpulidae (Annelida: Polychaeta) based on 18S rDNA sequence data, and implications for opercular evolution , 2007 .

[6]  B. Koh,et al.  Two new species of Owenia (Annelida: Polychaeta) in the northern part of the North Atlantic Ocean and remarks on previously erected species from the same area , 2003 .

[7]  A. Woodham,et al.  A new species of Chaetozone (Polychaeta: Cirratulidae) from deep water in the northeast Atlantic, with comments on the diversity of the genus in cold northern waters , 2003, Hydrobiologia.

[8]  E. Kupriyanova.  Live history evolution in Serpulimorph polychaetes: a phylogenetic analysis , 2003, Hydrobiologia.

[9]  R. Sanfilippo.  Bathyvermilia islandica (Polychaeta, Serpulidae): a new deep-water species from south of Iceland , 2001 .

[10]  A. Badyaev,et al.  Ecological correlates of arctic serpulidae (Annelida, Polychaeta) distributions , 1998 .

[11]  E. Kupriyanova,et al.  Serpulidae (Annelida, Polychaeta) of the Arctic Ocean , 1997 .

[12]  D. Fiege,et al.  Serpulid tube-worms (Annelida: Polychaeta) of the central and eastern mediterranean with particular attention to the Levant Basin , 1996, Senckenbergiana maritima.

[13]  A. Rzhavsky.  On the morphoecology of spirorbid tubes (Polychaeta: Spirorbidae) , 1994 .

[14]  H. A. Hove,et al.  Laminatubus alvini gen. et sp.n. and Protis hydrothermica sp.n. (Polychaeta, Serpulidae) from the bathyal hydrothermal vent communities in the eastern Pacific , 1986 .

[15]  P. Knight-Jones.  A new species of Protoleodora (Spirorbidae: Polychaeta) from Eastern U.S.S.R., with a brief revision of related genera , 1984 .

[16]  M. R. Fordy,et al.  Setal Structure, Functions and Interrelationships in Spirorbidae (Polychaeta, Sedentaria) , 1979 .

[17]  P. Knight-Jones.  New Spirorbidae (Polychaeta: Sedentaria) from the East Pacific, Atlantic, Indian and Southern Oceans , 1978 .

[18]  L. C. Llewellyn,et al.  Spirorbinae (Polychaeta: Serpulidae) from southeastern Australia. Notes on their taxonomy, ecology, and distribution , 1974 .

[19]  C. Blanco.  Syllidae (Polychaeta) from the Arctic and sub-Arctic regions , 2010 .

[20]  G. Rouse,et al.  Phylogenetic relationships within Serpulidae (Annelida: Polychaeta) inferred from molecular and morphological data. , 2006 .

[21]  E. Kupriyanova.  Evolution of life history in Serpulimorph polychaetes: a phylogenetic analysis. , 2003 .

[22]  E. Kupriyanova.  Metavermilia arctica sp. n. (Serpulidae, Polychaeta) from the Arctic Ocean , 1993 .

[23]  E. Kupriyanova.  Deep-sea Serpulidae (Annelida, Polychaeta) from the Kurile-Kamchatka trench: 2. Genera Bathyditrupa, Bathyvermilia, and Protis , 1993 .

[24]  T. Holthe.  Identification of Annelida Polychaeta from northern European and adjacent Arctic waters , 1991 .

[25]  K. Fitzhugh.  A systematic revision of the Sabellidae-Caobangiidae-Sabellongidae complex (Annelida, Polychaeta). Bulletin of the AMNH ; no. 192 , 1989 .

[26]  P. Knight-Jones.  Spirorbinae (Serpulidae: Polychaeta) from South-Eastern Australia. A new genus, four new subgenera and seven new species , 1973 .

[27]  Enrique Rioja Lo-Bianco.  Estudio sistemático de las especies ibéricas del suborden sabelliformia , 1923 .

[28]  R. Chamberlin.  The Annelida Polychaeta , 1919 .

[29]  Alf Wollebæk.  Nordeuropæiske Annulata polychaeta. I. Ammocharidae, Amphictenidae, Ampharetidae, Terebellidae ogSerpulidae, af Alf Wollebæk. Med 51 plancher og 16 textfigurer ... , 1912 .

[30]  A. Agassiz,et al.  Report on the annelids , 1887 .