Seasonal activity patterns and habitats in Solifugae (Arachriida) in the southern Karoo, South Africa

Solifuges were caught with pitfall traps over a 29-month period in three different habitats at Tierberg, near Prince Albert. A total of 134 individuals of at least nine species of four families (Ceromidae, Daesiidae, Gylippidae and Solpugidae) were trapped in the three habitats. Bhssia karrooica, B. unquicornis and Hemiblossia idioceras were caught only on plains, Bhssia sp. nov. was caught only on ‘heuweltjies‘, Lipophaga trispinosa was caught only on old fields, and Hemiblossia oneili and Solpugiba lineata were caught in all three habitats. Most species were active in the summer (October-March) but two species, Bhssia karrooica and Lipophaga trispinosa were active throughout the year

On Rastellus, a new genus of the spider family Ammoxenidae (Araneae, Gnaphosoidea). American Museum novitates ; no. 2995

11 p. : ill. ; 26 cm.Includes bibliographical references (p. 10-11

On the First African and Australian Spiders of the Genus Cyrioctea (Araneae: Zodariidae)

Volume: 96Start Page: 359End Page: 36

Diagnosis of Delayed Post-Hypoxic Leukoencephalopathy (Grinker’s Myelinopathy) with MRI Using Divided Subtracted Inversion Recovery (dSIR) Sequences: Time for Reappraisal of the Syndrome?

Background: Delayed Post-Hypoxic Leukoencephalopathy (DPHL), or Grinker’s myelinopathy, is a syndrome in which extensive changes are seen in the white matter of the cerebral hemispheres with MRI weeks or months after a hypoxic episode. T2-weighted spin echo (T2-wSE) and/or T2-Fluid Attenuated Inversion Recovery (T2-FLAIR) images classically show diffuse hyperintensities in white matter which are thought to be near pathognomonic of the condition. The clinical features include Parkinsonism and akinetic mutism. DPHL is generally regarded as a rare condition. Methods and Results: Two cases of DPHL imaged with MRI nine months and two years after probable hypoxic episodes are described. No abnormalities were seen on the T2-FLAIR images with MRI, but very extensive changes were seen in the white matter of the cerebral and cerebellar hemisphere on divided Subtraction Inversion Recovery (dSIR) images. dSIR sequences may produce ten times the contrast of conventional inversion recovery (IR) sequences from small changes in T1. The clinical findings in both cases were of cognitive impairment without Parkinsonism or akinetic mutism. Conclusion: The classic features of DPHL may only represent the severe end of a spectrum of diseases in white matter following global hypoxic injury to the brain. The condition may be much more common than is generally thought but may not be recognized using conventional clinical and MRI criteria for diagnosis. Reappraisal of the syndrome of DPHL to include clinically less severe cases and to encompass recent advances in MRI is advocated