The Blood - system in the Serpulimorpha ( Annelida , Polychaeta )

Phylogeny of Echiura (Annelida, Polychaeta) inferred from morphological and molecular data-implications for character evolution

The Eyes and the Photonegative Behaviour of Nephtys (annelida, Polychaeta)

Parasabella Bush, 1905, replacement name for the polychaete genus Demonax Kinberg, 1867 (Annelida, Polychaeta, Sabellidae)

Parasabella Bush, 1905 is reintroduced as a replacement name for Demonax Kinberg, 1867 (Annelida: Polychaeta: Sabellidae) which is a junior homonym of Demonax Thomson, 1860 (Insecta: Coleoptera: Cerambycidae).

Capitellidae (Annelida: Polychaeta) from the Pacific Coast of Costa Rica.

Eleven species of Capitellidae (Annelida: Polychaeta) belonging to eight genera are reported from the subtidal and intertidal of the Pacific Coast of Costa Rica. Three species, Mediomastus ambiseta, M. californiensis and Notomastus hemipodus, are found in highest abundances and are widespread in subtidal and intertidal environments. A taxonomic key to these species is included.

First Report of Sabella spallanzanii (Gmelin, 1791) (Annelida: Polychaeta) from Botany Bay, New South Wales, a northern range extension for the invasive species within Australia.

• an 'introduced marine pest' by the National Introduced Marine Pest Information System (NIMPIS 2013) • a 'target introduced pest species' by the Australian Ballast Water Management Advisory Council (ABWMAC) (Currie et al. 1998) • a 'medium priority species' (a species which has a reasonably high impact/or invasion potential) in a ranking of Australian marine pests (Hayes et al. 2005). • a repo...