CHARACTER 13: Shape of spermathecae.
Spermathecae with two seminal receptacles separated or only partly fused = 1.
FIGURE: Cyrtopholis flavostriatus Schmidt 1995. Unilobular spermathecae (offspring of holotype female).
FIGURE: Grammostola sp. Spermathecae.
FIGURE: Aphonopelma seemanni (Cambridge 1897), Costa Rica. Spermathecae.
Spermathecae widely fused (the fusion zone is half or more than spermathecal length) = 2.
FIGURE: Brachypelma auratum Schmidt 1992. Spermathecae.
FIGURE: Acanthoscurria geniculata (C. L. Koch 1842). Spermathecae.
Spermathecae with single semicircular or oval receptacle = 4.
FIGURE: Theraphosa blondi (Latreille 1804). Spermathecae.
FIGURE: Hapalotremus sp., Peru. Spermathecae.
FIGURE: Megaphobema mesomelas (Cambridge 1897). Spermathecae.
FIGURE: Chromatopelma cyanopubescens (Strand 1907). Spermathecae.
FIGURE: Sericopelma melanotarsum Valerio 1980, Costa Rica, Siquires. Spermathecae.
Spermatecae with single slender receptacle = 5.
FIGURE: Bonnetina cyaneifemur Vol 2000, Mexico. Spermathecae.
Single fused spermathecae, mostly flattened and structured at apex = 6.
FIGURE: Davus sp., Mexico, Oaxaca state. Spermathecae.