The giant freshwater whipray is a large-bodied stingray species that listed as endangered across its known range from India through Southeast Asia. However, little about the species’ ecology, biology, and conservation status. We reviewed all available literature, articles, reports on found database internet searches in order to consolidate update information whipray. remarkably research has bee...

Recent evaluation of Neanderthal and modern human ontogeny suggests that taxon-specific features arose very early in development in both lineages, with early, possibly prenatal, morphological divergence followed by parallel postnatal developmental patterns. Here we use morphometric techniques to compare hominoid facial growth patterns, and show that this developmental phenomenon is, in fact, no...

Four new species of feather mites belonging to three different genera of the family Pteronyssidae are described from passerine birds of South Africa: Pteroherpus africanus sp. n. from the garden bulbul Pycnonotus barbatus (Desfontaines) (Pycnonotidae), Pteroherpus cysticolae sp. n. from the wing-snapped cisticola Cisticola ayresii Hartlaub (Sylviidae), Pteronyssoides promeropis sp. n. from the ...

Two new species of entobdelline (capsalid) monogeneans are described from the skin of Australian dasyatid stingrays, namely Neoentobdella cribbi sp. n., a small parasite from the estuarine stingray, Dasyatis fluviorum Ogilby (Elasmobranchii: Dasyatidae) and Neoentobdella baggioi sp. n., a relatively large parasite from the porcupine ray, Urogymnus asperrimus (Bloch et Schneider) (Elasmobranchii...

The australopithecine anterior pillars defined by Rak (The Australopithecine Face, New York: Academic Press, 1983) were re-examined in the fossil hominids of southern Africa. The structure and extent of this buttressing pillar was found to be variable among Australopithecus africanus and A. robustus specimens. A reduced anterior pillar was observed in Homo habilis, and a morphological equivalen...

Despite a rich African Plio-Pleistocene hominin fossil record, the ancestry of Homo and its relation to earlier australopithecines remain unresolved. Here we report on two partial skeletons with an age of 1.95 to 1.78 million years. The fossils were encased in cave deposits at the Malapa site in South Africa. The skeletons were found close together and are directly associated with craniodental ...

Several members of the order Thermotogales in the domain Bacteria, viz., Thermotoga neapolitana, Thermotoga maritima, Thermosipho africanus, Fervidobacterium islandicum, and Thermotoga strain SEBR 2665, an isolate from an oil well, reduced thiosulfate to sulfide. This reductive process enhanced cellular yields and growth rates of all the members but was more significant with the two hyperthermo...

Intermediate hosts of Schistosoma haematobium, the causative agent of urinary schistosomiasis, in Lake Malaŵi include: Bulinus globosus, a member of the B. africanus group and B. nyassanus, a diploid member of the B. truncatus/tropicus species complex. We compared genetic variability between isolates of S. haematobium from the southern part of the lake (Cape Maclear), where both B. globosus and...

To determine whether Schistosoma mattheei is present in the south-western Transvaal, sixty habitats were searched for the intermediate host snail, Bulinus africanus. Ten populations of this snail were located, 2 of which were infected with S. mattheei. Eggs of one of these isolates, originating from a spring in the Mooi River, were examined with an optical microscope. Scanning electron microgra...

Eggs of Aedes albopictus were collected in oviposition cups from 3 forested areas of Delta State in south-central Nigeria during September 1991 as part of a post-yellow fever outbreak investigation. These eggs were shipped to the Centers for Disease Control in Colorado, where they were reared to the adult stage and identified. This is the first record of breeding populations of Ae. albopictus i...