CTENIZIDAE Thorell, 1887 Nombre común en ingles: Cork-lid trapdoor spiders Nombre común en castellano: Se desconoce Familias similares: Género tipo: Cteniza Latreille, 1829 Diagnosis: Medium-sized to very large mygalomorph spiders; three tarsal claws; eight eyes; rastellum present; four spinnerets; distal segments of front legs with lateral bands of short, thorn-like spines in female; cheliceral furrow with two rows of strong teeth; carapace with strongly procurved fovea. Caracteres descriptivos: Caparazón: arched; glabrous; fovea strongly procurved. Esternón: triangular; two sigilla, posterior sigilla large and deep or indistinct and shallow. Ojos: eight; arranged in short eye group of two or three rows; anterior row usually procurved; eye tubercle absent or low. Quelíceros: rastellum distinct, consisting of thick spines; cheliceral furrow biserially dentate; fang with outer surface smooth. Piezas bucales: labium wider than long, with a few cuspules; endites rectangular or with anterior lobe pronounced, with few to numerous cuspules; serrula absent. Patas: three claws; short legs; spinose distally on legs I and II; paired claw in female with one long tooth and two smaller teeth, a third claw curved and bare; tibia III cylindrical, with dorsal saddle-shaped depression (Pachylomerinae); distal segments of legs I and II with lateral bands of short, thorn-like spines in female; scopulae absent on tarsi in females; present on all tarsi of males. Palpo femenino: unmodified. Abdomen: oval; covered with a thin layer of short setae. Hileras: four; apical segment of posterior spinnerets domed. Sistema respiratorio: cuatro filotráqueas. Genitalia: spermathecae multilobular; male palp simple; bulbus with pyriform conical distal sclerite; second haematodocha small. Tamaño corporal: 13-43 mm. Color: varies from brown to reddish black with legs yellowish brown or reddish brown; abdomen usually a pallid or dull colour. Estatus taxonómico: Ctenizidae is the only family in the superfamily Ctenizoidina, which forms, together with the superfamily Migoidea (Migidae + Actinopodidae), the sister taxon of the Idiopidae (Raven, 1985). They fall into a division of the Rastelloidina, which also contains the Cyrtaucheniidae. A key to the genera or the world is provided by Raven (1985). Few genera have recently been revised (Decae, 1996). Distribución: In most of the tropical and subtropical regions of the world. Estilo de vida: Live permanently in silk-lined burrows usually closed with a cork-lid trapdoor; some are arboreal (Main, 1985). Bibliografía: Bond, J.A. & Hendrixson, B.E. 2005. Ctenizidae. pp. 43-44 in Ubick, D., Paquin, P., Cushing, P.E. & Roth, V. (Eds) 2005. The Spiders of North America. An Identification Manual. American Arachnological Society. Decae, A.E. 1996. Systematics of the trapdoor spider genus Cyrtocarenum Ausserer, 1871 (Araneae, Ctenizidae). Bull. Br. arachnol. Soc. 10: 161-170. Dippenaar-Schoeman, A.S. & Jocqué, R. 1997. African Spiders: An Identification Manual. Plant Protection Res. Inst. Handbook, no. 9, Pretoria, 392 pp. Dippenaar- Schoeman, A.S. 2002. Baboon and trapdoor spiders of southern Africa: An identification manual. Plant Protection Res. Inst. Handbook, no. 13, Agricultural Research Council, Pretoria, 128 pp. Main, B.Y. 1985. Further studies on the systematics of ctenizid trapdoor spiders: A review of the Australian genera (Araneae: Mygalomorphae: Ctenizidae). Aust. J. Zool. (suppl. Ser.) 108: 1-84. Raven, R.J. 1985. The spider infraorder Mygalomorphae (Araneae): Cladistics and systematics. Bull. Am. Mus. Nat. Hist. 182: 1-180.           1 género y 2 especies presentes en la Península Ibérica: Ummidia Thorell, 1875                       - U. algarve Decae, 2010                       - U. picea Thorell, 1875