In 'Muratov, I.V. 2010. Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique. African Invertebrates 51 (2): 255-288, it was discovered that one of the family names (Pomatiidae) in Table 2 on page 258 was misspelt as Pomatiasidae. The corrected version of the relevant page is published on p. 230 of this article. The author and editors apologize for this error.

The medically important scorpion genus Hottentotta Birula, 1908 has long been a taxonomical challenge. This species-rich scorpion genus contains three lineages spread over most of Africa and part of Asia. The Maghrebian Hottentotta was historically recognised as a single species, H. franzwerneri (Birula, 1914), divided in two subspecies with disjunct distributions. A recent morphological study raised both Maghreb subspecies to species level, H. franzwerneri and H. gentili (Pallary, 1924). In this study we assess the phylogenetic relationships between specimens of the genus Hottentotta from Morocco using cytochrome oxidase 1 (CO1) mitochondrial DNA sequences. Our finding of H. gentili in the eastern portion of Morocco increases the known range of this taxon and significantly reduces the geographic distance that separates it from H. franzwerneri. Furthermore, we found four well supported clades in the Maghrebian Hottentotta. All H. franzwerneri specimens group in the franzwerneri clade, but H. gentili specimens group in three different clades. The Ziz valley clade form a sister group to the franzwerneri clade, specimens from the core range of H. gentili group in the central clade, while specimens from the southern distribution of the species group in the Low Draa valley clade, basal in our tree. These findings challenge current Hottentotta taxonomy because they imply paraphyly of H. gentili, although mitochondrial introgression cannot be excluded. Further studies are needed to fully comprehend the taxonomy of Hottentotta from this region and the role that colour characters play in scorpion species diagnoses.

Examination of recently collected material of predominantly ground-dwelling jumping spiders (Araneae: Salticidae) mainly from the Free State and Northern Cape provinces, South Africa, lead to the discovery of 15 new species, which are described here: Cembalea triloris sp. n., Evarcha brinki sp. n., E. flagellaris sp. n., E. vittula sp. n., Icius pulchellus sp. n., Langona hirsuta sp. n., L. lotzi sp. n., Microbianor globosus sp. n., Pseudicius dependens sp. n., P. gracilis sp. n., P. karinae sp. n., P. maculatus sp. n., P. solitarius sp. n., Rhene lingularis sp. n. and Tanzania meridionalis sp. n. The unknown male of Rhene konradi Wesolowska, 2009, and the unknown females of Pellenes bulawayoensis Wesolowska, 1999, P. modicus Wesolowska & Russell-Smith, 2000, Phlegra etosha Logunov & Azarkina, 2006, P. karoo Wesolowska, 2006 and Thyene thyenioides (Lessert, 1925), are described for the first time. Nine species, Dendryphantes hararensis Wesolowska & Cumming, 2008, Menemerus pilosus Wesolowska, 2006, Pellenes geniculatus (Simon, 1868), P. modicus, Phlegra bresnieri (Lucas, 1846), P. etosha, P. karoo, Tanzania mkomaziensis (Wesolowska & Russell-Smith, 2000) and T. thyenioides, are recorded from South Africa for the first time. Apart from two records in the Northern Cape Province, Cembalea triloris sp. n. is also recorded from southern Namibia. Additionally, new provincial records for species previously recorded from elsewhere in South Africa are presented: 19 species are recorded from the Free State for the first time, five from the North West, and two from the Northern Cape. Thyenula oranjensis Wesolowska, 2001, described from the eastern Free State, is recorded from KwaZulu-Natal for the first time.

This paper focuses on five species of Polyplacophora (Mollusca) collected from Lavanono, southern Madagascar. Ischnochiton sirenkoi is described as a new species and is compared with the two Ischnochiton species known from Madagascar, I. yerburyi (E.A. Smith, 1891) and I. sansibarensis Thiele, 1909, and with all known Indian Ocean Ischnochiton species. Findings for the other species here discussed provide a significant extension of previously known geographical range. Chaetopleura chelazziana Ferreira, 1983 is reported for the first time in the chiton fauna of Madagascar. The taxonomic status of Callistochiton ashbyi (Barnard, 1963), previously considered a synonym of C. crosslandi Sykes, 1907, is discussed. This taxon, which was described from a unique intermediate valve from South Africa, is re-evaluated and recognized as a valid species, differing from C. crosslandi in several significant characters. We also present an unusual feature detected in almost all the specimens of Cryptoplax dupuisi Ashby, 1931, which are characterized by the absence of dorsal girdle spicules on the first four valves, a feature never reported in other chiton species. Type material of Callistochiton madagassicus Thiele, 1909, Chiton ashbyi (Barnard, 1963) is figured.

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.

Two new species of the genus Tachydromia Meigen are described: T. freidbergi sp. n. (Ethiopia) and T. stuckenbergi sp. n. (Uganda). Re-descriptions of T. lilaniensis Smith, 1969 and T. petrabilis Smith, 1969, known from South Africa and Lesotho, are given. A key to Afrotropical Tachydromia is provided. Hypothesized phylogenetic relationships and the biogeography of Afrotropical species of Tachydromia are briefly discussed.

Microstylum vespertilio Engel, 1932 is redescribed from the Northern Cape Province of South Africa and transferred to Daspletis Loew, 1858, a genus closely related to Microstylum Macquart, 1838, that now incorporates eight southern African species. Knowledge of the species is updated and a new identification key is provided.

Twelve species of the Spartaeinae from Africa are considered. Previously unknown sexes are described for three species: Cyrba nigrimana Simon, 1900 (male); Meleon raharizonina Logunov & Azarkina, 2007 (female); and Meleon russata (Simon, 1900) (male). Three species, Cyrba lineata Wanless, 1984, Meleon madagascarensis (Wanless, 1978) and M. guineensis (Berland & Millot, 1941), are redescribed and illustrated on the basis of the type and newly collected specimens. New faunistic records are provided for seven species: Cyrba lineata Wanless, 1984 (South Africa); C. nigrimana Simon, 1900 (South Africa); C. simoni Wijesinghe, 1993 (Burundi); Holcolaetis zuluensis Lawrence, 1937 (South Africa); Meleon guineensis (Berland & Millot, 1941) (Congo); Portia africana (Simon, 1885) (Ivory Coast and Ghana); and P. schultzi Karsch, 1878 (Madagascar). One species, Meleon sp. (female from Uganda), remains undetermined.

Five new species of the endemic giant pill-millipede genus Zoosphaerium from Madagascar are described: Z. muscorum sp. n., Z. bambusoides sp. n., Z. tigrioculatum sp. n., Z. darthvaderi sp. n., and Z. heleios sp. n. The first three species fit into the Z. coquerelianum species-group, where Z. tigrioculatum seems to be closely related to Z. isalo Wesener, 2009 and Z. bilobum Wesener, 2009. Z. tigrioculatum is also the giant pill-millipede species currently known from the highest elevation, up 2000 m on Mt Andringitra. Z. muscorum and Z. darthvaderi were both collected in mossy forest at over 1000 m (albeit at distant localities), obviously a previously undersampled ecosystem. Z. darthvaderi and Z. heleios both possess very unusual characters, not permitting their placement in any existing species-group, putting them in an isolated position. The females of Z. xerophilum Wesener, 2009 and Z. pseudoplatylabum Wesener, 2009 are described for the first time, both from samples collected close to their type localities. The vulva and washboard of Z. pseudoplatylabum fit very well into the Z. platylabum species-group. Additional locality and specimen information is given for nine species of Zoosphaerium: Z. neptunus (Butler, 1872); Z. villosum Wesener & Sierwald, 2005; Z. amabile Wesener, 2009; Z. tampolo Wesener, 2009; Z. smaragdinum Wesener, 2009; Z. viridissimum, Wesener, 2009; Z. pseudopiligerum Wesener, 2009; and Z. analavelona Wesener, 2009.

Natalina sensu lato includes some of the largest carnivorous snails in the world and represents an important African radiation of the Gondwanan land snail family Rhytididae. It comprises the taxa Natalina, Afrorhytida and Capitina, all three of which we treat as full genera. We provide a comprehensive revision of each genus, and update the species-level taxonomy extensively in the light of new molecular and morphological data. Detailed comparative morphological observations are provided for the distal reproductive tract (including spermatophores for the first time in this family), pulmonary cavity, mantle edge, radula and suprapedal gland. In addition, we present a summary of biological and ecological data including information on habitat preferences, feeding, prey and mating behaviour. Although the genera are well circumscribed in terms of both morphological and molecular data, morphology is usually highly conserved within genera. Yet surprising cryptic diversity is evident within the described species and restricted-range endemism is more frequent than was previously thought, with significant implications for conservation. The widespread common cannibal snail, Natalina cafra (Ferussac, 1821), is shown to comprise four cryptic, allopatric lineages. For the most part, we recognise this cryptic diversity at the level of subspecies. In some cases where populations from disjunct, lime-rich habitats exhibit a significantly different shell morphology, it is difficult to evaluate whether and to what extent this is genetically or environmentally determined. Spermatophores exhibit considerable phylogenetically consistent morphological variation and may eventually prove to be an important source of new taxonomic characters. The geographic distributions of the respective lineages are interpreted in the light of phylogenetic data, current regional vegetation patterns, and historical environmental phenomena, so as to identify biogeographic trends. Some lineages are clearly forest-associated specialists and have fragmented, narrowly-endemic distributions resulting from cyclical changes in forest cover during the Plio-Pleistocene, but there is also strong evidence for regional endemism associated with other vegetation types, notably Albany Thicket. Observations on the conservation status of all taxa are provided. New subgenus: Natalina (Tongalina). New species: Afrorhytida burseyae, Capitina calcicola. New subspecies: Afrorhytida kraussi oraria, Natalina cafra amathole, Natalina cafra natalensis, Natalina quekettiana dracomontana, Natalina quekettiana lucaris, Natalina quekettiana montistempli. New synonyms: Natalina compacta Connolly, 1939 = Natalina cafra cafra (Ferussac, 1821); Natalina coerneyensis Melvill & Ponsonby, 1894 and Natalina insignis Melvill & Ponsonby, 1907 = Afrorhytida knysnaensis (Pfeiffer, 1846); Natalina liliacea Preston, 1912 = Afrorhytida kraussi kraussi (Pfeiffer, 1846); Natalina arguta Melvill & Ponsonby, 1907 = Afrorhytida trimeni Melvill & Ponsonby, 1892. Revised status: Helix (Aerope) eumacta Melvill & Ponsonby, 1892 is considered a subspecies of Natalina cafra (Ferussac, 1821). Lectotypes designated for Aerope beyrichi Martens, 1890 [= Natalina] and Helix schärfiae Pfeiffer, 1861 [= Capitina schaerfiae].