New Spirinia and Stygodesmodora species (Nematoda, Spiriniinae) from the Southwest Pacific, and a revision of the related genera Spirinia, Chromaspirina and Perspiria Author Leduc, Daniel 9393949F-3426-4EE2-8BDE-DEFFACE3D9BC National Institute of Water and Atmospheric Research, Private Bag 14 - 901, Wellington, New Zealand. Correponding author: Daniel. Leduc @ niwa. co. nz & urn: lsid: zoobank. org: author: 9393949 F- 3426 - 4 EE 2 - 8 BDE-DEFFACE 3 D 9 BC Author Verschelde, Dominick 80C09028-E083-4DF0-B514-9C92A12ED78E Ghent University - Zoology Museum, K. L. Ledeganckstraat 35, B- 9000 Ghent, Belgium & urn: lsid: zoobank. org: author: 80 C 09028 - E 083 - 4 DF 0 - B 514 - 9 C 92 A 12 ED 78 E text European Journal of Taxonomy 2015 2015-03-31 118 1 25 journal article 22433 10.5852/ejt.2015.118 5496fe1c-b44b-4f41-8766-6ddf73acc355 2118-9773 3779432 4302BA88-0639-4062-84F2-EECD733807A5 Genus Stygodesmodora Blome, 1982 Type species Stygodesmodora epixantha Blome, 1982 . Emended diagnosis (modified from Blome 1982 ) Cuticle with coarse annulations; numerous long somatic setae may be present; annulated head region (sometimes intraspecific variation, with the head of some specimens only partially annulated in dorsal and ventral regions). Amphid unispiral or spiral located on amphideal plate; small to medium sized buccal cavity with dorsal tooth and (usually) smaller subventral teeth. Pharynx with rounded or pyriform posterior bulb, without cuticularised lumen. Pre-cloacal supplements present or absent; spicules short, arcuate, and with well-developed capitulum; gubernaculum present. Valid species S. bacillicauda ( Gerlach, 1963 ) S. epixantha Blome, 1982 S pecies inquirenda S. rotundicephala ( Cobb, 1920 )