Euchromadorinae Gerlach & Riemann 1973
Creators: name: Datta, Tridip Kumar
name: Al-Helal, Md. Abdullah
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Adenophorea
Desmodorida
Chromadoridae

description: Key to the genera of subfamily Euchromadorinae
1 Spicules jointed and solid cuticular cones present anterior part of the body......................... Rhips Cobb, 1920
- Spicules not jointed and similar cuticular cones absent....................................................... 2
2 Massive squarish dorsal tooth (onchium)............................................... Steineridora Inglis, 1969
- Dorsal tooth not massive squarish........................................................................ 3
3 Amphideal fovea conspicuous and with double contour....................................................... 4
- Amphideal fovea inconspicuous or different shape.......................................................... 5
4 Pre- and postcloacal thickening ventrally in male....................................... Nygmatonchus Cobb, 1933
- Pre- and postcloacal thickening absent in male........................................... Actinonema Cobb, 1920
5 Rows of denticles in the onchial cavity............................................. Euchromadora de Man, 1886
- Rows of denticles absent or in different arrangement, if present................................................ 6
6 Gubernaculum with accessory piece(s).................................................................... 7
- Gubernaculum without accessory piece.................................................................. 10
7 Cuticle with lateral differentiation........................................................................ 8
- Cuticle without lateral differentiation............................................... Parapinnanema Inglis, 1969
8 Lateral differentiation runs from behind the head to the spinneret; pre- and postcloacal thickening in male............................................................................................ Portmacquaria Blome, 2005
- Lateral differentiation not reaching the spinneret, no such pre- and postcloacal modification.......................... 9
9 Lateral differentiation wing or crest like........................................ Crestanema Pastor de Ward, 1985
- Lateral differentiation simple smooth band without elevated wing or crest like................ Graphonema Cobb, 1898
10 Cuticle with homogeneous ornamentation and lateral differentiation as subcuticular discontinuity,................................................................................................... Endeolophos Boucher, 1976
- Cuticle with heterogeneous ornamentation and lateral differentiation crest-like as alae or ridge,............................................................................................ Trochamus Boucher & De Bovée, 1971
description: Published as part of Datta, Tridip Kumar & Al-Helal, Md. Abdullah, 2023, Review of Euchromadorinae (Nematoda: Chromadorida) with description of a new species of Trochamus Boucher & De Bovée, 1971 from the Sundarban, India, pp. 493-510 in Zootaxa 5278 (3) on page 499, DOI: 10.11646/zootaxa.5278.3.4, http://zenodo.org/record/7906615