World Database of Nematodes

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Nemys taxon details

Halalaimus gerlachi Keppner, 1992

584302  (urn:lsid:marinespecies.org:taxname:584302)

accepted
Species
marine
Keppner, E. J. (1992). Eleven new species of free-living marine nematodes of the genus Halalaimus De Man, 1888 (Nematoda:Enoplida) from Florida with keys to the species. <em>Gulf Research Reports.</em> 8 (4), 333-362. [details]  Available for editors  PDF available [request] 
Type locality contained in St. Andrews Bay  
type locality contained in St. Andrews Bay [details]
Taxonomic remark Halalaimus gerlachi n. sp. Synonym: Halalaimus gracilis sensu Gerlach, 1967; пес H . gracilis De Man, 1888.
Gerlach (1967)...  
Taxonomic remark Halalaimus gerlachi n. sp. Synonym: Halalaimus gracilis sensu Gerlach, 1967; пес H . gracilis De Man, 1888.
Gerlach (1967) described specimens of Halalaimus from the Red Sea as H . gracilis. Inner labial sensilla are not discernible and lateral alae are present in the specimens.
Males have ornamented caudal alae, and the gubemaculum has a caudally directed apophysis. The absence of the inner labial sensilla and the presence of a gubemacular apophysis is sufficient to differentiate the specimens from H . gracilis
and designate them as a new species, Halalaimus gerlachi n. sp. (Gerlach 1967). The holotype of the species is the specimen on which Gerlach (1967) based his description.
The only other species of Halalaimus with a gubemaculum with an apophysis is Halalaimus sarsi Gerlach, 1967. H. gerlachi n. sp. differs from H. sarsi in the presence of ornamented caudal alae and shorter outer labial and cephalic sensilla (1.5 versus 2.0 head diameters long). Platt and Warwick (1983) described specimens of Halalaimus as H. gracilis. The inner labial sensilla are not mentioned or figured, caudal alae are absent in the male, and a precloacal sensillum is present. Based on the description, these specimens cannot be H . gracilis. They belong in group 3 below along with those species in which a precloacal sensillum is present and caudal alae are absent. [details]
Bezerra, T.N.; Eisendle, U.; Hodda, M.; Holovachov, O.; Leduc, D.; Mokievsky, V.; Peña Santiago, R.; Sharma, J.; Smol, N.; Tchesunov, A.; Venekey, V.; Zhao, Z.; Vanreusel, A. (2021). Nemys: World Database of Nematodes. Halalaimus gerlachi Keppner, 1992. Accessed at: http://nemys.ugent.be/aphia.php?p=taxdetails&id=584302 on 2021-10-27
Date
action
by
2011-10-24 13:56:25Z
created
2016-12-16 07:55:15Z
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original description Keppner, E. J. (1992). Eleven new species of free-living marine nematodes of the genus Halalaimus De Man, 1888 (Nematoda:Enoplida) from Florida with keys to the species. <em>Gulf Research Reports.</em> 8 (4), 333-362. [details]  Available for editors  PDF available [request] 
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
 

From editor or global species database
Taxonomic remark Halalaimus gerlachi n. sp. Synonym: Halalaimus gracilis sensu Gerlach, 1967; пес H . gracilis De Man, 1888.
Gerlach (1967) described specimens of Halalaimus from the Red Sea as H . gracilis. Inner labial sensilla are not discernible and lateral alae are present in the specimens.
Males have ornamented caudal alae, and the gubemaculum has a caudally directed apophysis. The absence of the inner labial sensilla and the presence of a gubemacular apophysis is sufficient to differentiate the specimens from H . gracilis
and designate them as a new species, Halalaimus gerlachi n. sp. (Gerlach 1967). The holotype of the species is the specimen on which Gerlach (1967) based his description.
The only other species of Halalaimus with a gubemaculum with an apophysis is Halalaimus sarsi Gerlach, 1967. H. gerlachi n. sp. differs from H. sarsi in the presence of ornamented caudal alae and shorter outer labial and cephalic sensilla (1.5 versus 2.0 head diameters long). Platt and Warwick (1983) described specimens of Halalaimus as H. gracilis. The inner labial sensilla are not mentioned or figured, caudal alae are absent in the male, and a precloacal sensillum is present. Based on the description, these specimens cannot be H . gracilis. They belong in group 3 below along with those species in which a precloacal sensillum is present and caudal alae are absent. [details]

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