In members of this genus there are short-bladed chaetae with a distinctive ball-and-socket articulation present in the dorsal buch of chaetae on most segments starting at about 12-15 (these are referred to as "homogomph falcigers" in technical diagnoses). Paragnaths are present, usually on both rings of the eversible phayrnx. This species can be distinguished by the absence of paragnaths on the oral ring. Two common Nereis species have bifid dorsal chaetae: Nereis bifida has paragnaths on most areas of the pharynx, while in Nereis maxillodentata the entire oral ring is bare of paragnaths. Body up to about 4 cm long.
Nereis bifida and Nereis maxillodentata are the two species of Nereis most commonly collected in southern Australia.
Collected from a wide variety of habitats, but is most common on soft sediments, shallow subtidal down to depth of about 120 m.
South-eastern Australia, or north-eastern Australia.
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed