Gulella bicolor Hutton,1834
Shell:Elongated,smooth,aperture with 4 teeth.Colouring white to pale brown,
transparent.
Length up to 7.5 mm and width 2 mm.
The animal is bright orange.
Habitat:Around human settlements.
Distribution:India,South-Africa,introduced in the Caribbean,southern North-America:Louisiana,Florida,South-Carolina,Texas,Mississippi.Also in Australia
Gulella natalensis Craven,1880
Shell:Surface variable:sometimes smooth,other times with closely set axial riblets.Aperture
usually with 5 teeth.
Colouring whitish translucent.Length up to 11 mm.
The animal has a greenish-yellow to green head and foot with a darker neck and tentacles.
Habitat:Dune,coastal lowland,scarp forest and moist woodland.Primarly living in trees.
Distribution:Eastern South-Africa;Zululand-Transkei region.
Gulella zuluensis Connoly,1932 Shell:Similar to G.natalensis but with 3 teeth.Length up to 13 mm. The animal has a bright yellow to orange yellow head-foot,but this may be variable. Habitat:Coastal lowland,dune and swamp forest in leaf-litter and on treetrunks, also in vegetation and on walls. Distribution:Eastern South-Africa;north-eastern KwaZulu-Natal.
Gulella triglochis Melvill & Ponsonby,1903 Shell:Ovate,glossy and smooth,aperture with 4 teeth.Length up to 12.5 mm. The animal has an orange-yellow head-foot with the upper tentacles a bright orange colour. Habitat:Coastal lowland forest,dune forest and woody savanna in leaf-litter Distribution:Eastern South-Africa;northern KwaZulu-Natal and southern Mozambique.
Gulella kraussi Pfeiffer,1855 Shell:Cylindrical,a bit elongated,smooth and glossy,aperture with 4 teeth. Length up to 7.2 mm. The animal has a yellow to orange-yellow foot with bright orange top pair of tentacles. The other pair is faintly orange. Habitat:Coastal lowland,scarp forest,thicket,moist woodland and sometimes in gardens. Distribution:Eastern South-Africa;Durban coastal region,Umgeni and the Pietermaritz- burg area.
Gulella menkeana Pfeiffer,1853
Shell:Cylindrical,large and strong,with axial ribbing.Aperture with 5 teeth.
Length up to 17.2 mm but normally smaller.
The animal has a yellow head-foot,or pale orangish,top pair of tentacles orange.
Habitat:Variable from coastal lowland to woodland to gardens.
Distribution:Eastern South-Africa;KwaZulu-Natal coastal regions.
Gulella warreni Melvill & Ponsonby,1903 Shell:Cylindrical with axial riblets,aperture with 6 teeth.Length 10-16 mm. The animal has a yellow head-foot with the top pair of the tentacles orange. Habitat:Coastal lowland to scarp forest,variable. Distribution:Eastern South-Africa;northern KwaZulu-Natal.
Gulella gouldi Pfeiffer,1855 Shell:Cylindrical with axial riblets,aperture with 6 teeth.Length very variable: 4.5-12 mm. The animal has a yellow to orange head-foot with the top pair of tentacles bright orange. Habitat:Forest to woodland and gardens in leaflitter and under rocks and logs. Distribution:Eastern South-Africa;eastern Cape northwards to Zululand,inland to Hilton,Kranskop and Nkandla. Subspecies globosa Pfeiffer,1852,discriminanda Bruggen,1969(Maputaland).
Gulella infrendens Martens,1866 Shell:Cylindrical to ovate,surface smooth and glossy,aperture with 6 teeth. Length 5.2-9.1 mm. The animal has a yellow head-foot with orange upper tentacles. Habitat:Dune,scarp,Podocarpus forest,coastal lowland,gardens and parks. Distribution:Eastern South-Africa;KwaZulu-Natal coast to the border with Swaziland.Transkei,eastern Cape and inland to the Pietermaritzburg area,Karkloof and the Thukela Valley.
Gulella browni Bruggen,1969 Shell:Whorls rounded,strongly axial ribbed,apex very conical,aperture with 8 teeth. Length up to 3.2 mm. The animal has a pale yellow head-foot and the upper pair of tentacles is orange. Habitat:Coastal forest and bush in leaf-litter. Distribution:Southern Africa;Mozambique,northern Zululand.