African Invertebrates » Архив номеров » Vol. 52, Issue 1 » Публикация

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Страницы11 - 19 Опубликовано 2011-06-14 Опубликовано на SciPeople2011-06-15 11:25:07 ЖурналAfrican Invertebrates

Northern Drakensberg range Gulella species (Gastropoda, Pulmonata, Streptaxidae): Gulella inobstructa van Bruggen, 1965, revisited, or types are not typical
Bruggen, A.C., van / Mike Mostovski
Аннотация Gulella inobstructa van Bruggen, 1965, was described from two adult shells from Magoebaskloof. Additional material shows that the range of variation in shell dimensions is quite considerable and that the type specimens indeed are far from typical, also as regards apertural dentition. This taxon is a narrow-range endemic in a limited area in Mpumalanga/Limpopo provinces, South Africa. The partly sympatric G. perspicua (Melvill & Ponsonby, 1893) has a shell that in many respects is similar to that of the above taxon. However, apart from various minor differences, the suture of G. perspicua is always excavated, so that shells of both taxa normally can be differentiated without undue trouble.
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