EXTERNAL MORPHOLOGY OF SOME ACROBELINAE BY M. R. SAUER, R. N. CHAPMAN CSIRO Division of Horticultural Research, Merbein, Victoria 3505, Australia and M. W. BRZESKI Institut Warzywnictwa, 96-100 Skierniewice, Poland Acrobeles complexus, A. chelatus, Zeldia punctata, Nothacrobeles subtilis and N. maximais were studied with the scanning electron microscope with particular attention to morphology of the cephalic region. Each genus had a broad anterior chamber in the stoma. Number and arrange- ment of cephalic sensory organs was the same for all species. Males, seen in two species of Acrobeles and N. maximus, had two grooves and ventral papillae associated with the cloaca. The elaborate but delicate structure of labial and cephalic probolae in several genera of Acrobelinae makes study of the features with the light microscope difficult. En face views are particularly hard to interpret (Thomas, 1965). Several genera of Acrobelinae are common in the arid soils of inland Australia. We col- lected specimens of five species, Acrobeles complexus Thorne, A. chelatus Thomas & Allen, Nothacrobeles subtilis Allen & Noffsinger, N. maximus Allen & Noff- singer, and Zeldia punctata (Thome) , which have recently been described in detail (Thomas 1965, Thomas & Allen 1965, Allen & Noffsinger 1971, Allen
Nematologica – Brill
Published: Jan 1, 1979
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