Encoptarthria

Fauna Portal Genus Number: 389

(after Main 1954): Cephalothorax longer than broad, convex, narrower anteriorly, anterior margin straight. Fovea longitudinal. Eyes eight, in two rows of four; both rows procurved, posterior row especially so, anterior median eyes diurnal, posterior median eyes oval, posited obliquely. Chelicerae with three teeth on the outer, one on the inner margin of furrow of each falx. Maxiilae constricted in mid-region, denser anterior scapula. Labium attenuated anteriorly, margin truncate, constricted at base. Stermum longer than wide, truncate anteriorly, obtusely pointed posteriorly. Posterior coxae wide apart. Female pedipalp with a pectinate claw, but no claw-tufts. Legs with all trochanters notched; all tarsi with claw-tufts and two similar pectinate claws. All tarsi and first two pairs of metatarsi with scapula. Abdomen elongate: No colulus. Six spinnerets, anterior pair terminating in a ring of ten long spinning tubes. Terminal segment of posterior spinners small and rounded.

(after Zakharov & Ovtcharenko 2011): The retrolateral tibial apophysis of Encoptarthria echemophthalma has a very complex and variable shape and may be used for species identification. It is almost as long as the cymbium and has a sharp tip. The retrolateral tibial apophysis is covered by massive heavily sclerotized dents that vary in number. It lies in the groove on the dorsal side of the cymbium.