Identification key to species of the genus Latronema Wieser, 1954 Key created by Oleksandr Holovachov
Please refer to this identification key as Holovachov, O. (2019) Identification key to species of the Latronema Wieser, 1954. In: Bezerra, T.N.; Decraemer, W.; Eisendle-Flöckner, U.; Holovachov, O.; Leduc, D.; Miljutin, D.; Sharma, J.; Smol, N.; Tchesunov, A.; Mokievsky, V.; Venekey, V.; Vanreusel, A. (2019) NeMys: World Database of Free-Living Marine Nematodes. Accessed at http://nemys.ugent.be
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Characteristics
Amphid shape in female ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) Indistinct Unispiral Multispiral Circular Unknown
Amphid shape in male ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) Indistinct Unispiral Multispiral Circular Unknown
a-ratio ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) < 10 10-15 15-20 20-25 25-30
Body length in mm ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) 0.5-1.0 mm 1.0-1.5 mm 2.0-2.5 mm > 2.5 mm
b-ratio ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) 4-5 8
Cephalic setae length in µm ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) > 10 10-15 15-20 20-25
c'-ratio ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) < 1.0 1.0-1.5 1.5-2.0 2.0-2.5 2.5-3.0 3.0-3.5
c-ratio ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) 10-15 15-20 20-25 25-30
Length of spicules in µm ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) 25-30 30-35 40-45 45-50 50-55 55-60 60-65 70-75 Unknown 75-80
Number of setae in a second circle (outer labial and cephalic) ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) 10 14
Number of supplements ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) 15 20 23 Unknown 12 13
Numbrer of longitudinal ridges at midbody ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) 12 14 16 18 20 28 38 22 Unknown 40-50
Shape of spicules ![Pictorial key](https://www.marinespecies.org/aphia/images/idkeys/camera1.gif) Inverted J-shaped C-shaped, without ventral projection Unknown C-shaped, with ventral projection Moderately arcuate, without ventral projection Moderately arcuate, with ventral projection | Remaining taxa: Latronema aberrans (Allgén, 1934) Gerlach, 1964
Latronema annulatum (Gerlach, 1953) Wieser, 1954
Latronema botulum Gerlach, 1956
Latronema conglobatum Gerlach, 1964
Latronema deconincki Boucher, 1976
Latronema orcinum (Gerlach, 1952) Wieser, 1954
Latronema piraticum Wieser, 1954
Latronema sertatum Wieser, 1959
Latronema spinosum Andrássy, 1973
Latronema whataitai Leduc & Zhao, 2015
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