The aberrant structure of the head in the genus Desmotimmia Freudenhammer, 1975 (Nematodes, Desmoscolecida)
Decraemer, W. (1975). The aberrant structure of the head in the genus Desmotimmia Freudenhammer, 1975 (Nematodes, Desmoscolecida). Z. Morphol. Tiere 81(3): 191-194
In: Zeitschrift für Morphologie der Tiere. Springer-Verlag: Berlin; Heidelberg; New York. ISSN 0044-3131, meer
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| Abstract |
The very special head structure of Desmotimmia mirabilis (Timm, 1961) Freudenhammer, 1975, differs from all other nematodes in showing a hexaradial symmetrical labial region with 6 lips around a hexagonal mouth and bearing but one circlet of only four labial setae: 2 lateral ones, the right subdorsal and the left subventral. The head of D. mirabilis, not clearly defined until now, is composed of 3 consecutively broader rings, each consisting of an anterior non-sclerotized and a posterior sclerotized part, and separated by a narrow interzone from the broader concretized first body ring. Contribution no. 7 on the nematodes from the Great Barrier Reef, collected during the Belgian expedition in 1967. |
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