The genus Loxosceles Heinecken & Lowe, 1832 has 91 representatives in the New World. Despite medical relevancy, the taxonomy of the genus is poorly understood. South American Loxosceles were divided into four groups of species: laeta, spadicea, gaucho and amazonica; this last one has a single species, Loxosceles amazonica Gertsch, 1967. More recently, the natural occurrence of L. amazonica in t...

Loxosceles rufescens, commonly known as the Mediterranean Recluse or Mediterranean Fiddle-Back Spider is recorded from Iran for the first time. The genus Loxosceles contains 103 accepted species, two of them (including L. rufescens) are cosmopolitan. All Loxosceles species tested so far possess necrotic venoms, which is a unique characteristic among the Order Araneae. Considering this character...

With five previously described native species, all of them endemic, and at least four introduced species, the murid rodent fauna of Seram is more diverse than that catalogued from any other Moluccan island. Here, the rodent fauna of Seram is briefly reviewed, and a newly recorded rodent from the island is described as Melomys rufescens paveli, a new subspecies of a species otherwise known from ...

Rhagomys rufescens (Rodentia: Sigmodontinae) is an endemic species of the Atlantic forest from Southern and Southeastern Brazil. Some authors consider Rhagomys as part of the tribe Thomasomyini; but its phylogenetic relationships remain unclear. Chromosomal studies on eight specimens of Rhagomys rufescens revealed a diploid number of 2n = 36 and a number of autosome arms FN = 50. GTG, CBG and A...

The Rheumatic arthritis is an auto immune inflammatory disorder which cause destruction of cartilage and bone damage with risk of infections. Inflammation is the response of living tissues to injury and is a complex pathophysiological process associated with extravasation of fluid and proteins and accumulation of leukocytes at the site of injury. In the present study, the invitro anti-arthritic...