Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 96. (Budapest 2004)

Verdcourt, B.: New and little known species of terrestrial Mollusca from East Africa and Congo (Kinshasa)

Diagnosis - Undoubtedly related to Gulella bitzeensis CONNOLLY, 1922 described from Cameroon, the type of which I have examined in the Natural History Museum, but the lowest tooth of the outer lip in that species is in the plane of the aperture not entering at right angles to it. Gulella biparieialis THIELE, 1933 described from Ghana must also be related but the dentition is quite different in detail. Description - Shell ovoid-oblong, broadly rounded at the apex (Fig. 20), greyish white, not umbilicate but with a closed linear area. Whorls 6 Vi, slightly convex; suture scarcely impressed. Apical 2 whorls obscurely transversely striate, the rest strongly striate with 6-8 ribs per mm, the ribs more curved at the base where meeting suture. Aperture oval; peristome thick, very broadly expanded and reflected. Dentition complicated, 7-fold; two parietal teeth, the outer lamelliform, strong and very curved to the left, the right hand one a small tooth; outer lip with two teeth, the upper squarish, the lower lamelliform and entering at right angles to plane of aperture, somewhat excavated above, a single broad tooth and two lamellar teeth on the columella, the lower the larger. The body whorl with three pits behind the peristome, outer, basal and columellas Dimensions: height 10 mm, breadth 5 mm; aperture height 4.2 mm, breadth 3.5 mm. Distribution - Known only from a single shell from the extreme west of Zaire. Etymology - Derived from 'West African'. Gulella (Juventigulella) habibui TATTERSFIELD, 1998 Gulella (Juventigulella) habibui TATTERSFIELD, 1998 in Journal of Conchology 36 (2): 32, fig. la-c; type locality: Tanzania: Morogoro District, Uluguru Mountains, Kimboza Forest Reserve (NMW.Z. 1997.059.003). Distribution - Tanzania. Material examined- Tanzania, 20 km from Arusha, Meru S slope, Usa River settlement (1200 m), 27.III. 1979, leg. EŐRY & SlPOS (HNHM 92325/10). Remarks - This material antedates that cited by TATTERSFIELD by over 15 years. Gulella (Plicigulella) coarctata (D'AILLY, 1910) Ennea (Gulella) coarctata D'AILLY in SJÖSTEDT, 1910, Kilimandjaro-Meru Expedition 6. Mollusca: 6, t. 1, figs. 7-9; type localities: Tanzania: Mt. Meru, 3000-3500 m and Kilimanjaro, Kibonoto (Stockholm Nat. Hist. Mus.). Distribution - N. Tanzania, Kilimanjaro and Meru. Material examined - Tanzania, Meru, S slope, above Usa River, Hunter's House, moss forest (2000 m), 30.III. 1979, leg. EŐRY & SlPOS (HNHM 92306/4); Meru Crater, S side, above Usa River, observation tower no. 17, rocks, 28.III.1979, leg. EŐRY & SlPOS (HNHM 92299/1); 20 km from