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Four New Nematode Species From the Bothnian Bay, Northern Baltic Sea, With a Redescription of Microlaimus Globiceps De Man, 1880 (Nematoda)

Four New Nematode Species From the Bothnian Bay, Northern Baltic Sea, With a Redescription of... FOUR NEW NEMATODE SPECIES FROM THE BOTHNIAN BAY, NORTHERN BALTIC SEA, WITH A REDESCRIPTION OF MICROLAIMUS GLOBICEPS DE MAN, 1880 (NEMATODA) BY T. A. TURPEENNIEMI Department of Biology, University of Joensuu, FIN-80101, Finland1 and Perämeri Research Station, University of Oulu, FIN-90571, Finland Four free-living nematodes from the Bothnian Bay, the northern part of the Baltic Sea, are de- scribed as new to science. A key to the genus Eleutherolaimus Filipjev, 1922, is given. Eleuthero- laimus schneideri sp. n. is characterized by unequal cephalic setae and subcephalic setae, sub- cephalic setae shorter than the head diameter, amphid position in junction of buccal cavity and oesophagus, long cardia and short spicules. Microlaimus limnophilus sp. n. belongs to the group of small microlaimids (shorter than 0.5 mm) and is characterized by very small teeth (dorsal tooth about 0.5 µm long) and wide body annules (2.5-3.0 µm in midbody). Prismatolaimus paraprimi- tivus sp. n. has a slender body (a = 56-65), outer labial setae and cephalic setae in separate circles, wide amphid (2/3 of corresponding body diameter), precloacal supplements confined to posterior body region and long tail. Halalaimus dimorphus sp. n. is recognized by long amphid, posteriorly narrow oesophagus, setose inner labial http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Four New Nematode Species From the Bothnian Bay, Northern Baltic Sea, With a Redescription of Microlaimus Globiceps De Man, 1880 (Nematoda)

Nematologica , Volume 43 (1): 28 – Jan 1, 1997

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/004725997X00034
Publisher site
See Article on Publisher Site

Abstract

FOUR NEW NEMATODE SPECIES FROM THE BOTHNIAN BAY, NORTHERN BALTIC SEA, WITH A REDESCRIPTION OF MICROLAIMUS GLOBICEPS DE MAN, 1880 (NEMATODA) BY T. A. TURPEENNIEMI Department of Biology, University of Joensuu, FIN-80101, Finland1 and Perämeri Research Station, University of Oulu, FIN-90571, Finland Four free-living nematodes from the Bothnian Bay, the northern part of the Baltic Sea, are de- scribed as new to science. A key to the genus Eleutherolaimus Filipjev, 1922, is given. Eleuthero- laimus schneideri sp. n. is characterized by unequal cephalic setae and subcephalic setae, sub- cephalic setae shorter than the head diameter, amphid position in junction of buccal cavity and oesophagus, long cardia and short spicules. Microlaimus limnophilus sp. n. belongs to the group of small microlaimids (shorter than 0.5 mm) and is characterized by very small teeth (dorsal tooth about 0.5 µm long) and wide body annules (2.5-3.0 µm in midbody). Prismatolaimus paraprimi- tivus sp. n. has a slender body (a = 56-65), outer labial setae and cephalic setae in separate circles, wide amphid (2/3 of corresponding body diameter), precloacal supplements confined to posterior body region and long tail. Halalaimus dimorphus sp. n. is recognized by long amphid, posteriorly narrow oesophagus, setose inner labial

Journal

NematologicaBrill

Published: Jan 1, 1997

Keywords: Halalaimus; morphology; marine nematodes; Baltic Sea; sperm dimorphism; Prismatolaimus; Eleutherolaimus; Microlaimus; egg dimorphism; taxonomy

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