Seven new land snail species are described from the Antsingimavo and Beanka karst formations, northeast of Maintirano, central western Madagascar: Ampelita andriamamonjyi, A. beanka, A. lindae, Conulinus randalanai, Kalidos maryannae, Tropidophora humbug and T. sericea. Additional notes, records and illustrations are also provided for a further ten regionally endemic species.

Two new Uropodina species from Ethiopia are described and illustrated. Neodiscopoma fabiani sp. n. is the second species known from the genus in Africa. The other new species, Trichouropoda szabadi sp. n., belongs to the Trichouropoda avails group. Notes concerning the genus Neodiscopoma and comments in respect of the available name of Neodiscopoma franzi Marais & Theron, 1986 are given.

The genus Akatiomyia gen. n. is described from the Western Cape Province of South Africa. The genus is monotypic, with A. eremnos sp. n. being the type species. This rather unique genus appears morphologically very similar to species of Afroholopogon Londt, 1994, Oligopogon Loew, 1847 and Rhabdogaster Loew, 1858. An updated key to the genera of Afrotropical Stenopogoninae is provided.

Two genera, Tritogenia Kinberg, 1867 and Michalakus Plisko, 1996, are separated from the composite family Microchaetidae Beddard, 1895 (s. l.), and the Tritogeniidae fam. nov. is erected to accommodate them. The genera Microchaetus Rapp, 1849, Geogenia Kinberg, 1867, Proandricus Plisko, 1992, and Kazimierzus Plisko, 2006, are left in the Microchaetidae (s. str.). The diagnoses for both families as they now stand are given and keys to all the genera are provided. Species accredited to the Tritogeniidae fam. n. are listed, and distribution of Tritogenia and Michalakus is discussed. Revision of Tritogenia zuluensis (Beddard, 1907) is advised.

The terrestrial mollusc species richness and diversity in Omo Forest Reserve, Ogun State, Nigeria, was studied using a combination of direct search and leaf-litter sieving techniques. In total, 28 species and 639 individuals in 7 molluscan families were collected from 17 plots of 400 m² each. Species richness varied from 3 to 14 (mean 8.59) and the number of individuals from 8 to 67 (mean 37.59) per plot. Species richness was dominated by the carnivorous Streptaxidae (36%) and herbivorous Subulinidae (32%), and numerical abundance by the Subulinidae (56%) and Streptaxidae (32%). The most abundant species was the large subulinid, Subulona pattalus, contributing almost 25% of the total number of individuals. Terrestrial molluscs with small populations and narrow distributional ranges are at great risk of local extinction if forest destruction continues unabated. Studies on the molluscan diversity in Omo Forest Reserve will assist in producing an inventory for biodiversity conservation management in Nigeria.

Anew species of Leptochelia, namely L. africana, is described from Guinea Bissau, West Africa, following the collection of specimens during the Laboratory of Marine Community Ecology and Evolution's sampling expedition to Macaronesia and Portugal's former colonies. Genetic and morphological analysis separates this species from the other east-Atlantic species of Leptochelia, a genus known for its combination of many cryptic species, considerable intra-specific variation, and multiple morphological forms. The diagnostic characters of the female are: antennule proximal article more than 3 times as long as wide, article 2 not longer than article 3; dorsodistal spiniform seta on antennal article 2 weaker than ventrodistal; setae not arising from a process; maxilliped basis with three distal setae longer than endites, palp article 2 with outer spiniform seta arising from a process; uropod exopod biarticulated, longer than proximal endopod article; and endopod terminal article longer than other articles. The males are structurally more complicated and cannot be assigned diagnostic characters based on morphology alone. The primary males have an uniarticulated uropod exopod, whereas that of the secondary males is biarticulated.

Thirteen Afrotropical species of the ichneumonid genus Diaparsis are recognised (including one species from Seychelles and one species from Reunion). Eleven new species are described from Gabon, Tanzania, South Africa and Uganda: D. abstata sp. n., D. aneucliformis sp. n., D. interstitialis sp. n., D. inusitata sp. n., D. kolyadai sp. n., D. minuscula sp. n., D. mostovskii sp. n., D. probleformis sp. n., D. robusta sp. n., D. voluptuosa sp. n. and D. vulgaris sp. n. Two previously known species, D. evanescens (Morley, 1912) and D. moesta (Holmgren, 1868), are re-described following re-examination of their types. The latter species is found to belong to the genus Tersilochus Holmgren, 1859 (subgenus Tersilochus s. str.), in which it was originally described. An identification key to 13 Afrotropical species of Diaparsis is provided.

Opportunistic observations made in the St Lucia estuarine lake, mainly during the period 1991 to 2000, show that the rhizostomatid scyphozoan Crambionella stuhlmanni often forms aggregations with densities in excess of 1 ind.m^-3. Its salinity tolerance varies in the range of 12–65 ‰, with the highest jellyfish concentrations often observed at hypersaline levels of 40–65 ‰. Considering that the species has persisted in the system under the present closed mouth conditions, it is suggested that it is capable of completing its life cycle within the estuarine lake. Its role in the ecosystem needs to be investigated, with emphasis on its potential ability to remove suspended sediment particles from the water-column.

Exuviae of the cicada Pycna semiclara were found next to freshly eclosed adults. The exuvium of Pycna semiclara is described and illustrated for the first time and a key is presented to distinguish the exuvium of this species from those of Platypleura stridula and Platypleura capensis, the only other species of cicadas from southern Africa for which exuviae have been described.

Examination of museum collections and of recently collected materials lead to the discovery of the following 19 jumping spider species that are described here: Asemonea amatola sp. n. (♀), A. clara sp. n. (♀), Belippo meridionalis sp. n. (♂♀), Colaxes benjamini sp. n. (♂♀), Dendryphantes limpopo sp. n. (♀), D. silvestris sp. n. (♂♀ Evarcha denticulata sp. n. (♂), Heliophanus gramineus sp. n. (♀), H. ndumoensis sp. n. (♂), Langelurillus krugeri sp. n. (♀), Massagris contortuplicata sp. n. (♀), Pseudicius dentatus sp. n. (♂♀), P. femineus sp. n. (♀), P. flabellus sp. n. (♂), P. imitator sp. n. (♂♀), Rhene amanzi sp. n. (♂), R. punctatus sp. n. (♂), R. timidus sp. n. (♀), and Tomomingi szutsi sp. n. (♂♀)A new genus, Ureta gen. n., is described, with U. quadrispinosa (Lawrence, 1938) comb. n. (from Euophrys C.L. Koch, 1834) as the type species. Two further new combinations are proposed: Afromarengo bimaculata (Peckham & Peckham, 1903) comb, n., transferred from Copocrossa Simon, 1901, and Brancus mustelus (Simon, 1902) comb, n., transferred from Evarcha Simon, 1902. Massagris regina Wesołowska, 1993 is synonymised with M. honesta Wesołowska, 1993. The unknown adults of A. bimaculata, the unknown males of Heliophanus aberdarensis Wesołowska, 1986, Pseudicius africanus Peckham & Peckham, 1903 and U. quadrispinosa, and the unknown females of Evarcha striolata Wesołowska & Haddad, 2009, Rhene facilis Wesołowska & Russell-Smith, 2000 and Sibianor victoriae Logunov, 2000, are described. Twelve species are recorded from South Africa for the first time: Asemonea murphyae Wanless, 1980, Dendryphantes rafalskii Wesołowska, 1999, Evarcha zimbabwensis Wesołowska & Cumming, 2008, Hasarius adansoni (Audouin, 1826), Heliophanus aberdarensis, H. pygmaeus Wesołowska & Russell-Smith, 2000, Langona tortuosa Wesołowska, 2011, Mogrus mathisi (Berland & Millot, 1941), P. elegans Wesołowska & Cumming, 2008, R. facilis Wesołowska & Russell-Smith, 2000, S. victoriae and Xuriella prima Wesołowska & Russell-Smith, 2000. Additionally, new provincial records for species previously recorded from elsewhere in South Africa are provided for the Eastern Cape (eight spp.), Western Cape (five spp.), Limpopo (two spp.), and North West and Mpumalanga provinces (one species from each).

The male of Nesiergus insulanus Simon, 1903 is described for the first time, and both sexes are illustrated. The presence of the species on the two Seychelles islands of Frégate and L'Îlot Frégate is confirmed, and observation evidence suggests that its range extends to Cousine Island.

A new species of the tracheline genus Fuchibotulus Haddad & Lyle, 2008 (Araneae: Corinnidae) is described. Fuchibotulus haddadi sp. n. is only known from the type locality in the Eastern Cape Province, South Africa. An updated diagnostic key to all known species of the genus is provided.

The entire millipede fauna of Namibia is reviewed. Brief diagnoses of and identification keys to three orders, six families and nearly all 25 species of diplopods known from the country are provided. Two new genera, Praeterpedicuhis and Umbridesmus, and five new species, namely Bandeirenica andara, Brevitibius oongongololo, B. ondundu, Podochresimus latus, and Syndesmogenus fragilis, are described. “Habrodesmus” niger (Attems, 1928) and “Habrodesmus” semiflavus (Attems, 1944) are synonymised and placed in the new combination Praeterpediculus niger (Attems, 1928). Umbridesmus millequingentesimus (Attems, 1944) is also a new combination. In addition, the following species have been recorded from Namibia: Afraustraloxenodes namibiensis Nguyen Duy-Jacquemin, 2003, A. coineaui Nguyen Duy-Jacquemin, 2003, Chaleponcus hereronius (Attems, 1922), C. limbatus Attems, 1914, C. niger Attems, 1914, Cnemodesmus riparius Shelley & Crawford, 1996, Condexenus biramipalpus Nguyen Duy-Jacquemin, 2006, Doratogonus rugifrons (Attems, 1928), Harpagophora arida Redman, 2003, H. diplocrada Attems, 1909, Kartinikus australis Attems, 1914, Namibostreptus kymatorhabdus (Attems, 1914), Oxidus gracilis (C.L. Koch, 1847), Podochresimus unistolonis Attems, 1944, Spinotarsus xanthonotus Attems, 1909, Spirostreptus heros Porat, 1872, Synophryostreptus rugosostriatus (Schubart, 1966), and Zinophora sabulosa (Attems, 1928).