Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-25T05:41:39.077Z Has data issue: false hasContentIssue false

Abbreviata nyassae n.sp. (Physalopteridae, Spiruroidea) from Agama atricollis in Nyasaland

Published online by Cambridge University Press:  18 November 2009

W. M. Fitzsimmons
Affiliation:
Agricultural Research Council Field Station, Compton, Berks

Extract

The cuticle is finely striated and is partially reflected over the lips. The cervical papillae are symmetrically placed and occupy a position just anterior to the junction of the two parts of the oesophagus at about the same level as the nerve ring, some 0·32 mm. from the anterior end. The pseudolips are hemispherical and lateral. Each of the two pseudolips carries two papillae, one towards the latero-dorsal border and one towards the latero-ventral border. An amphid is situated centrally between the two papillae on each pseudolip. Internal to the pseudolips there is a complete denticular crest comprising externo-lateral teeth, interno-lateral teeth, paired submedian teeth and intervening denticles (Fig. 1). The externo-lateral teeth are large and pointed; the interno-lateral teeth, somewhat more posteriorly placed (Fig. 2), are smaller and also pointed. The four pairs of sub-median teeth are easily distinguished by their greater size from the denticles. The four spaces between the sub-median teeth and the externo-lateral teeth are each occupied by six to seven denticles. These denticles are larger in size than the very small denticles of which ten occupy the dorsal and ten occupy the ventral angles of the denticular crest.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1964

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Chabaud, A. G., 1956.—“Essai do révision dcs physaloptères parasites de reptiles.” Ann. Parasit. hum. comp., 31, 2952.CrossRefGoogle Scholar
Hill, W. C., 1941.—“Physahptera terrapenis, a new nematode from a tortoise.” Trans. Amer. tnicr. Soc., 60, 5964.CrossRefGoogle Scholar
Johnston, T. H. and Mawson, P. M., 1942.—“The Gallard collection of parasitic nematodes in the Australian Museum.” Rec. Aust. Mus., 21, 110115.CrossRefGoogle Scholar
Linstow, O. Von, 1899.—“Nematoden aus der Berliner zoologischen Sammlung.” Mitt. xool. Mus. Berlin, 1, 3.Google Scholar
Linstow, O. Von, 1908.—“Nematoden und Acanthocephalen aus dem westlichen und zcntralen Südafrika.” Denkschr. med.-naturw. Ges. Jena, 13, 2128.Google Scholar
Ortlepp, R. J., 1937.—“Some undescribed species of the nematode genus Physahptera Rud., together with a key to the sufficiently known forms.” Onderstepoort J. vet. Sci., 9, 7184.Google Scholar
Rudolphi, C. A., 1819.—“Entozoorum synopsis, cui acccdunt mantissa duplex ct indices locuplctissimi,” Berolini, 811 pp.CrossRefGoogle Scholar