Timmia Hopper, 1961

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 : 18

Genus Timmia Hopper, 1961

The genus was erected in Chromadorinae to accommodate two species [( T. bipapillata ( Chitwood, 1951) and T. parva ( Timm, 1952) ] which were previously described as Parachromadora by Timm (1952). The generic name Parachromadora was already preoccupied by Parachromadora Micoletzky, 1914 and for this reason it was necessary to propose a new genus name ( Hopper 1961). T. bipapillata was firstly described as Prochromadorella bipapillata by Chitwood (1951), but this author also suggested that the species could belong to a different genus since its terminal bulb was very well developed. The last species added to this genus was T. acuticauda Galtsova, 1976 . Timmia largely resembles Chromadorina except for the presence of tubular precloacal supplement, which was not described or even drawn for T. bipapillata , but detected later by Hopper (1961) when checking some T. bipapillata specimens.

Diagnosis (modified from Tchesunov 2014): Homogeneous cuticle with transverse rows of dots but without lateral differentiation. Amphideal fovea slit-like, when visible. Buccal cavity with three teeth of about equal size. Posterior single pharyngeal bub well developed. Presence of tubular curved precloacal supplements. Marine.