The name comes from the
Greek prefix εὖ- (eu-), meaning "valuable" or "good", which had been thought that the family
Ctenizidae possess these traits.[1]
Biology
Many, but not all, make wafer-like doors to their burrows, while others build the cork-like doors found commonly in the true[clarification needed] trapdoor spiders. The biology of nearly all of the species is poorly known.
^Bond, J. E., B. E. Hendrixson, C. A. Hamilton & M. Hedin. (Bond et al., 2012b) - A reconsideration of the classification of the spider infraorder Mygalomorphae (Arachnida: Araneae) based on three nuclear genes and morphology
{Raven, Robert J. (1985): The spider Infraorder Mygalomorphae (Araneae): cladistics and systematics. Bulletin of the American Museum of Natural History182: 1–180.
Murphy, Frances & Murphy, John (2000): An Introduction to the Spiders of South East Asia. Malaysian Nature Society, Kuala Lumpur.
Bond, J. E. Phylogenetic treatment and taxonomic revision of the trapdoor spider genus Aptostichus Simon (Araneae, Mygalomorphae, Euctenizidae). ZooKeys 252: 1–209.
Bond, J. E., C. A. Hamilton, N. L. Garrison & C. H. Ray. Phylogenetic reconsideration of Myrmekiaphila systematics with a description of the trapdoor spider species Myrmekiaphila tigris (Araneae, Mygalomorphae, Cyrtaucheniidae, Euctenizinae) from Auburn, Alabama. ZooKeys 190: 94–109.
Bond, J. E., B. E. Hendrixson, C. A. Hamilton & M. Hedin. A reconsideration of the classification of the spider infraorder Mygalomorphae (Arachnida: Araneae) based on three nuclear genes and morphology. PLoS One 7(6): e38753.