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Record number 2089450
Article title New species of Pungentus (Dorylaimidae) from the forests of the Primorsk Territory
Author(s) Eroshenko, A.S.
Journal title Zoologichesky zhurnal
Part(Year)Number 55(1976)10
Pages 1445 - 1454
Online full textINTERNET
Keyword(s) forest soils / nematology / new species / invertebrates / animals / eukaryotes / Russia / APEC countries / Developed Countries / nematoda / USSR / Russian Far East
Categories Nematoda
Publication type Article
Language Russian
About Eight new nematode species found in the litter and soil of fir forests in the Dal'negorsk region of the Primorsk Territory, USSR, are described and illustrated. Pungentus silvestris n.sp., P. drepanoideus n.sp., P. sublatum n.sp., P. granosus n.sp., P. vesiculosus n.sp. and P. orthocephalus n.sp. all have a short stylet and a conical tail and are differentiated from other members of this genus which have a short stylet by the detailed structure of their tails. P. silvestris, P. drepanoideus and P. vesiculosus are further differentiated from each other by body size, the position of the vulva and the shape of the terminus. The size of the body and spicules and the structure and size of the stylet distinguish P. sublatum from P. vesiculosus. P. granosus differs from all other species by the structure of the gonads, the very long testis and the structure of the male lateral organ. P. orthocephalus differs from P. vesiculosus by the structure of the terminus and of the anterior end, the smaller spermatheca and by the shape and size of the spermatozoids. P. medianus n.sp. and P. gracilis n.sp. have a short rounded tail. The first is differentiated from P. pumilus by a shorter pro-corpus and tail, a flat cardium and longer vagina and from P. parvus by angular, well defined lips, shorter tail, more posterior position of the vulva and the structure of the cardia. The second differs from P. obscurus by having fused lips, a massive tail and a shorter rectum. The Primorsk population of P. parvus had shorter tails and more posterior vulvae than given in Thorne's (1939) description.
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