Euchromadora de Man, 1886

Venekey, Virag, Gheller, Paula F., Kandratavicius, Noelia, Cunha, Beatriz Pereira, Vilas-Boas, Ana Carolina, Fonseca, Gustavo & Maria, Tatiana F., 2019, The state of the art of Chromadoridae (Nematoda, Chromadorida): a historical review, diagnoses and comments about valid and dubious genera and a list of valid species, Zootaxa 4578 (1), pp. 1-67 : 23-24

Genus Euchromadora de Man, 1886

The genus Euchromadora was erected by de Man (1886) to accommodate Chromadora vulgaris Bastian, 1865 . During the last century, dozens of species were referred to Euchromadora and subsequently transferred or considered species inquirenda or dubia or incerta sedis. Wieser (1954) was the first to review the genus presenting also an identification key. Subsequently, Coles (1965) and Inglis (1969) also reviewed the genus comparing it to other related genera within Euchromadorinae . After these reviews seven species were considered valid and additional three species were described: E. ezoensis , E. atypica and E. robusta by Kito (1977), Blome (1985) and Kulikov et al. (1998), respectively.

Diagnosis (modified from Tchesunov 2014): Complex heterogeneous cuticle, structured with hexagonal or ovoid punctuations anteriorly and posteriorly, with slimmer markings restricted to the lateral surface over the middle of the body. Transversally elliptical amphideal fovea without surrounding cuticle fringe. Six outer labial sensilla and four cephalic sensilla setiform, arranged in separate circles. Buccal cavity with large dorsal tooth, ventrosublateral teeth and rows of denticles. No distinct pharyngeal bulb. Gubernaculum with prominent hammer or L-shaped lateral pieces.

Number of valid species: 10.

Genus Euchromadora de Man, 1886

VALID SPECIES

1. Euchromadora atypica Blome, 1985 (Galapagos)

2. Euchromadora eileenae Inglis, 1969 ( Australia)

3. Euchromadora ezoensis Kito, 1977 ( Japan Sea)

4. Euchromadora gaulica Inglis, 1962 (Mediterranean)

Syn. Euchromadora chitwoodi Coles, 1965

Euchromadora tridentata sensu Wieser, 1951

5. Euchromadora meadi Wieser & Hopper, 1967 (Florida)

6. Euchromadora permutabilis Wieser, 1954 ( Chile)

7. Euchromadora robusta Kulikov, Dashchenko, Koloss & Yushin, 1998 ( Japan Sea)

8. Euchromadora striata ( Eberth, 1863) de Man, 1886 (Mediterranean)

Syn. Euchromadora gaulica sensu Inglis, 1962 (partim females)

Odontobius striatus Eberth, 1863

9. Euchromadora tokiokai Wieser, 1955 ( Japan Sea)

10. Euchromadora vulgaris ( Bastian, 1865) de Man, 1886 (North Sea)

Syn. Chromadora vulgaris Bastian, 1865

SPECIES INCERTA SEDIS

1. Euchromadora arctica Filipjev, 1946 (New Siberian Islans)

2. Euchromadora denticulata Cobb, 1914 ( Antarctica)

3. Euchromadora meridiana Cobb, 1914 ( Antarctica)

4. Euchromadora strandi Allgén, 1934 (Baltic)

SPECIES INQUIRENDA

1. Euchromadora africana Linstow, 1908 ( South Africa)

2. Euchromadora elegans Allgén, 1947 (California, USA)

3. Euchromadora eumeca Steiner, 1918 (West Africa)

4. Euchromadora hupferi ( Steiner, 1918) Coles, 1965 (West Africa)

5. Euchromadora inflatispiculum Schuurmans Stekhoven, 1943 (Mediterranean)

6. Euchromadora kryptospiculoides ( Allgén, 1951) Coles, 1965 (California, USA)

7. Euchromadora linstowi Allgén, 1959 (Falkland)

8. Euchromadora luederitzi Steiner, 1918 ( South Africa)

9. Euchromadora mortenseni ( Allgén, 1947) Wieser, 1954 (Lesser Antilles)

Syn. Spiliphera mortenseni Allgén, 1947

10. Euchromadora septentrionalis Cobb, 1914 ( Antarctica)

11. Euchromadora stateni Allgén, 1930 (Fuegian Archipelago)

12. Euchromadora tridentata Allgén, 1929 (Skagerrak)