Description of two mygalomorph spiders from south India (Araneae: Barychelidae, Theraphosidae).
Present paper describes two species of spiders discovered during a study on the
diversity of spiders of Kerala state, India. These species belong to the genera
Sason (Barychelidae) and Annandaliella (Theraphosidae). Annandaliella ernaku-
lamensis new species discovered from Ernakulam is characterized by a tibial
apophysis in the form of short broad lobe of comb-like series of stout black
spines and a characteristically different stridulatory spines on the chelicerae.
Sason robustum is a redescription of the species based on a new specimen.
Both species are illustrated and fully described during the study. SEM studies
were undertaken in A. ernakulamensis sp. nov.