Systematic observations on some species of Coomansus Jairajpuri & Khan, 1977 and Iotonchus Cobb, 1916 (Nematoda: Mononchina)
| Autor: | P.A.A. Loof, G. Winiszewska-Slipínska |
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| Jazyk: | angličtina |
| Rok vydání: | 1993 |
| Předmět: | |
| Zdroj: | Nematologica 39 (1993) Nematologica, 39, 183-217 |
| ISSN: | 0028-2596 |
| Popis: | Iotonchus coomansi Baqri et al., 1978 is considered a junior synonym of Coomansus parvus (de Man, 1880). I. zschokkei (Menzel, 1913) is redescribed from topotypes and transferred to Coomansus; a neotype is designated. I. simmenensis (Kreis, 1924) is redescribed from recent specimens and also transferred to Coomansus; it differs from C. zschokkei by a much more slender body, thinner cuticle, shape of vaginal sclerotisation, shorter tail and more rounded and differently structured terminus. The "large form of zschokkei" is described as a new species Coomansus menzeli. The species described by Eroshenko (1975) are reviewed; the five species described under Iotonchus are transferred to Coomansus. A key to the zschokkei-group is given. Mononchus major Cobb, 1893 is transferred to Coomansus. M. major apud Meyl, 1955 is redescribed and considered identical with C. kastrolli (Altherr, 1958). A key to the large species of Coomansus, not belonging to the zschokkei-group, is given. Coomansus sphagni (Brzeski, 1960) is redescribed from topotypes and transferred to Iotonchus. A neotype is designated. This species is close to I. vorax (Cobb, 1917) but differs from it in the shape of the head and of the internal vaginal sclerotization. |
| Databáze: | OpenAIRE |
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