Durettechina beveridgei n. g., n. sp. (Nematoda: Seuratidae) from Antechinus spp. (Dasyuridae: Marsupialia) from Australia.

摘要

Durettechina beveridgei sp. et gen. nov. is described from Antechinus flavipes (Dasyuridae) from Victoria (type locality) and New South Wales, Australia. A single female worm from A. bellus from the Northern Territory may also be D. beveridgei. Thenew genus is compared with other genera of the Echinonematinae, to which it has been assigned. The genus has a unique body armature and most closely resembles Chabaudechina in the armature of the cephalic bulb although it has 4 rather than 5 rows of hooks, and Linstowinema in having body hooks on the cuticle of the anterior region although with 18-22 hooks in each row rather than 14-16. The hooks of Durettechina are smaller and have a less complex root morphology than those of Linstowinema. Durettechinaresembles Seurechina and Chabaudechina in having caudal alae into which papillae extend, but differs from both these genera in the number and arrangement of the caudal papillae and in the body armature. Durettechina is most different from Bainechina, which has neither hooks on a cephalic bulb nor body hooks on the anterior region nor caudal alae.