WoRMS source details

Paxton, H. (1983). Revision of the genus Micronereis (Polychaeta: Nereididae: Notophycinae). Records of the Australian Museum. 35(1): 1-18.
57909
10.3853/j.0067-1975.35.1983.299 [view]
Paxton, H.
1983
Revision of the genus Micronereis (Polychaeta: Nereididae: Notophycinae)
Records of the Australian Museum
35(1): 1-18
Publication
World Polychaeta Database (WPolyDb)
The genus Quadricirra Banse, 1977 is not recognized, since its principal diagnostic character, the presence of accessory parapodial cirri, is sexually dimorphic and cannot be correlated with other characters; thus Micronereis is the sole genus of the subfamily Notophycinae. A new species, M. piccola, is described and M. siciliensis and M. bodegae are synonymized with M. variegata and M. nanaimoensis respectively. A key to males and descriptions of all species are provided. The Notophycinae appears to be the most derived subfamily of Nereididae, characterized by a combination of epitokal modifications retained from their nereidid relatives and specializations acquired as members of the meiofauna.
Systematics, Taxonomy
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Nontype NHMUK 1926.11.12.30, locality Port Said, identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype NHMUK 1926.11.12.30.a, locality Port Said, identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype USNM 35680, locality Plymouth, identified as Micronereis variegata Claparède, 1863
Holotype USNM 54514, locality Bahamas, identified as Micronereis piccola Paxton, 1983
Paratype USNM 60505-8, locality Bahamas, identified as Micronereis piccola Paxton, 1983
Paratype USNM 60509-10, locality Bimini Islands, identified as Micronereis piccola Paxton, 1983
Nontype USNM 60511, locality Bimini Islands, identified as Micronereis piccola Paxton, 1983
Nontype USNM 60512, locality Lizard Island (Queensland), identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype CMNZ AQ 3505, locality Snares Islands, identified as Micronereis minuta (Knox & Cameron, 1970)
Nontype NMV F 109492, locality Victoria (Australian state), identified as Micronereis halei Hartman, 1954
Nontype AM W.17179-81, locality Lizard Island (Queensland), identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype AM W.17182-5, locality Lizard Island (Queensland), identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype AM W.17186, locality Lizard Island (Queensland), identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype AM W.17187-8, locality Lizard Island (Queensland), identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype AM W.17189, locality Lizard Island (Queensland), identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype AM W.17190, locality One Tree Island, identified as Micronereis bansei (Hartmann-Schröder, 1979)
Nontype AM W.17191, locality Port Hacking, identified as Micronereis bansei (Hartmann-Schröder, 1979)
 Depth range

Intertidal to 7.6 m.  [details]

 Depth range

Low tide to about 9 m depth.  [details]

 Depth range

Lower eulittoral (intertidal) to 2 m depth. [details]

 Depth range

Shallow water to 10 m.  [details]

 Distribution

Atlantic Ocean: English Channel (France, England); Mediterranean Sea (France; Italy). [?] Red Sea (Sinai Peninsula).  [details]

 Distribution

Australia (Western Australia; New South Wales; Queensland); Egypt (Port Said, Suez Canal).  [details]

 Distribution

Australia: South Australia and Victoria.  [details]

 Distribution

West Atlantic Ocean, Bahamas (Bimini and Abaco).  [details]

 Etymology

The specific epithet piccola is an Italian adjective, and refers to the small size of the species.  [details]

 Habitat

Coralligène, coral rubble, sandy sediments, or between algae on rocks, intertidal to shallow subtidal. [details]

 Habitat

The species was collected from plastic sponges, submerged at shallow water.  [details]

 Reproduction

Eight of 10 examined syntypes with male gametes. Accessory parapodial cirri absent in smaller specimens; one ... [details]

 Reproduction

Male holotype with sperm morulae and free spermatozoa. Epitoky in an early stage, as parapodia 6 and 7 had few ... [details]

 Reproduction

Two females collected inside mucous coccons, measuring 1.4 and 1.6 mm in diameter, and containing approximately 150 ... [details]

 Type locality

Behind reef of Cherokee Sound, Abaco Island, Bahamas, West Atlantic Ocean (gazetteer estimate 29.29º, -77.05º), ... [details]