Table 2 in First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995

Table 2. Overview of diagnostic characters of the currently accepted genera of the Symphytognathidae.
Anapistula Gertsch, 1941Anapogonia Simon, 1905Crassignatha Wunderlich, 1995Curimagua Forster & Platnick, 1977Globignatha Balogh & Loksa, 1968Iardinis Simon, 1899Patu Marples, 1951Symphytognatha Hickman, 1931Sexes known♀ ♂♀♀ ♂♀ ♂♀♂♀ ♂♀ ♂Species number251922(2)1815Nomenclatural statusValidValidValidValidValidNomen dubium*ValidValidFemale genitalia, internalPair of round spermathecae connected by t-shaped duct-Large spermathecae, convoluted duct path (Fig. 12c, d)Ducts follow nearly straight path posteriorly from round spermathecaeSpermathecae twisted anteriorlyN.A.Spermathecae variable, sometimes elongate or reniformCopulatory ducts loop around elongate spermathecae (Hickman 1931: figs 1-6, pl. 1, fig. 2)Female genitalia, externalTransverse rounded lip overhanging furrow-Short robust scape (Fig. 11c, d)Transverse rounded lip overhanging furrowTransverse rounded lip overhanging furrowN.A.Transverse rounded lip overhanging furrow, or a flexible scape (Marples 1951: figs 1d, 2e)Transverse rounded lip overhanging furrowTarsal clawsHomogeneous-Homogeneous-Homogeneous-HomogeneousMultidentate only in anterior legs (Forster and Platnick 1977: figs 6, 7; Hickman 1931: fig. 2; Lin 2019: fig. 3)Cheliceral fusionNear the baseAbsentNear the baseNear the baseAlmost entirely fused with no visible suture line (Forster and Platnick 1977: figs 41, 42)-Fused basally to ca. 1/2 their lengthFused for most of their length, with visible suture lineCheliceral teethTwo (Fig. 7d)-Single asymmetrically bifid tooth, or two teeth (Fig. 5a)AbsentOne large, two short (Forster and Platnick 1977: fig. 43)One (Brignoli 1978: fig. 6)Usually a single large tooth with 1-3 peaksTwo sinuous teeth (Forster and Platnick 1977: figs 3, 32, 36; Lin 2019: figs 2B, 2C; Lopardo and Hormiga 2015: fig. 122A)Male tibia II clasperAbsentN.A.1-4 (Fig. 5d, e)AbsentN.A.-Sometimes 1-2AbsentMale abdominal scutumAbsent except in A. bonetiN.A.Surrounding the posterior part of the abdomen. Usually present, except in C. haeneliAbsentN.A.-AbsentAbsentPars cephalicausually only slightly raised, strongly raised in A. boneti-Strongly raisedStrongly raisedStrongly raisedStrongly raisedStrongly raisedStrongly raisedEye arrangementUsually four eyes (Fig. 8b), median eyes present in A. bonetiSix eyes in triadsSix eyes in diads (Figs 10b, e, 11b)Six eyes in triadsSix eyes in diadsSix eyes in triadsSix eyes in diads (Fig. 14b)Six eyes in diadsFemale palpAbsent-AbsentVestigialAbsentN.A.AbsentAbsentCarapace textureMostly smooth-Generally covered with tubercles (Fig. 5b, c)Mostly smoothMostly smooth-Mostly smoothMostly smoothAbdomen shapeSubspherical-Subspherical, sometimes with postero-lateral lobes (Fig. 6)SubsphericalSubspherical-Subspherical, sometimes with lobesSubsphericalCymbiumWith strong setae but without teeth or denticlesN.A.With cymbial tooth (Fig. 4b, d)With small bumps or denticles (Forster and Platnick 1977: fig. 66)N.A.---Spermatic ductCoiling 1.5 × over itself (Fig. 9a)N.A.Long, coiling several times around itself (Fig. 4b, e)-N.A.Coiling 1.5 × over itself (Brignoli 1978: fig. 7; Lopardo and Hormiga 2015: fig 135a)--EmbolusShort less than 0.5 × the diameter of the bulb (Figs 7c, 9a)N.A.Variable, short (Fig. 4c) or long, ca. the diameter of the palp (Fig. 4f)Short, ca. 0.5 × the diameter of the bulb (Forster and Platnick 1977: figs 67, 68)N.A.long, 0,5-1,5 the diameter of the bulb (Brignoli 1978: fig. 7; Brignoli 1980: figs 1, 2)Long, ca. 1 ×the diameter of the bulb (Marples 1951: fig. 1e, f; Marples 1955: fig. 19)Short, ca. 0.5 × the diameter of the bulb (Forster and Platnick 1977: figs 8, 9)Relevant literature(Harvey 1998; Dupérré and Tapia 2017; Forster and Platnick 1977; Rheims and Brescovit 2003; Rubio and González 2010)(Simon 1905; Platnick and Forster 1989)(Wunderlich 2004; Miller et al. 2009; Lopardo and Hormiga 2015)(Forster and Platnick 1977)(Forster and Platnick 1977)(Brignoli 1980; Forster and Platnick 1977; Gertsch 1960; Levi and Levi 1962; Lopardo and Hormiga 2015)(Marples 1951, 1955; Forster 1959; Forster and Platnick 1977; Saaristo 1996)(Hickman 1931; Forster and Platnick 1977; Lopardo and Hormiga 2015; Lin 2019)
Number of species is based on the WSC (2020). *Type species Iardinis weyersi Simon, 1899 is considered a nomen dubium; two species placed in this genus by Brignoli (1978, 1980) remain cataloged here (WSC 2020).