Micro-CT visualization of the CNS: Performance of different contrast-enhancing techniques for documenting the spider brain.

Spider brain and central nervous system (CNS) have remained unexplored, due in part to the difficulty of observing these organs, usually only possible through histological preparations. Recently, internal anatomy studies have been supplemented by the inclusion of X- ray micro-CT. Unmineralized tissue such as the body of invertebrates requires a staining process to enhance tissue X-ray absorption and improve contrast during observation.

First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Wunderlich, 1995.

The family Symphytognathidae is reported from Thailand for the first time. Three new species: , , and are described and illustrated. Distribution is expanded and additional morphological data are reported for Lin & Li, 2009.

Mining data from legacy taxonomic literature and application for sampling spiders of the Teutamus group (Araneae; Liocranidae) in Southeast Asia.

Taxonomic literature contains information about virtually ever known species on Earth. In many cases, all that is known about a taxon is contained in this kind of literature, particularly for the most diverse and understudied groups. Taxonomic publications in the aggregate have documented a vast amount of specimen data.

Imperfect and askew: A review of asymmetric genitalia in araneomorph spiders (Araneae: Araneomorphae).

Bilateral asymmetry in the genitalia is a rare but widely dispersed phenomenon in the animal tree of life. In arthropods, occurrences vary greatly from one group to another and there seems to be no common explanation for all the independent origins. In spiders, genital asymmetry appears to be especially rare.

Description of five new Wulfila (Araneae, Anyphaenidae) species from Mexico with comments on the taxonomy of the genus.

The genus Wulfila O. Pickard-Cambridge 1895 belongs to the family Anyphaenidae Bertkau, 1878, commonly called ghost spiders. Wulfila is endemic to the Americas and currently has 43 valid species; here we describe five new: Wulfila conchamonile spec.

Three new species of the genus Trachelas (Araneae: Trachelidae) from an oak forest inside the Mesoamerican biodiversity hotspot in Mexico.

Three new species of the spider genus Trachelas L. Koch, 1872 are described and included in the speciosus group based on the following features: embolus as a separate sclerite from the tegulum with no basal coils, legs with a conspicuous fringe of long trichobothria and narrow copulatory ducts coiled irregularly. The new species described are: T.