Transvenidae

Transvenidae is a family of parasitic spiny-headed (or thorny-headed) worms in the order Echinorhynchida. This family contains three species divided into two genera.

Taxonomy and description
Phylogenetic analysis has been conducted.

Species
There are three genera and six species in the family Transvenidae:

Paratrajectura
Paratrajectura Amin, Heckmann et Ali, 2018 contains one species:
 * Paratrajectura longcementglandatus Amin, Heckmann et Ali, 2018

Sclerocollum
Sclerocollum Schmidt and Paperna, 1978 contains three species:
 * Sclerocollum robustum (Edmonds, 1964)
 * Sclerocollum rubrimaris Schmidt and Paperna, 1978
 * Sclerocollum saudii Al-Jahdali, 2010

Trajectura
Trajectura Pichelin & Cribb, 2001 contains two species: Trajectura is distinguished by the possession of only two cement glands and an anterior conical projection (function unknown) on the females.


 * Trajectura ikedai (Machida, 1992)

Diplosentis ikedai was found to share similar anatomical features (only two cement glands and an anterior conical projection on females) was renamed T. ikedai.


 * Trajectura perinsolens Pichelin and Cribb, 2001

T. perinsolens Was found parasitising the New Guinea wrasse Anampses neoguinaicus from the Great Barrier Reef, Queensland, Australia.

Transvena
Transvena Pichelin & Cribb, 2001 contains one species:


 * Transvena annulospinosa Pichelin and Cribb, 2001