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Fig. 1. Reference lines and key points to be employed in taking morphological measurements of Chelonethida. Abbreviations as follows: al, accessory length; ab, accessory breadth; b, breath; cu, length of cucullus; d, depth; fl, length of movable finger; gb, greatest breadth of abdomen; l, length; la, length of carapace between anterior furrow and anterior margin; lm, length of carapace between anterior an posterior furrows; lp, length of carapace between posterior furrow and posterior margin; ob, ocular breadth; pb, posterior breadth of carapace; tl, tergal length; tlb, total length of body. A, C, D, F, H, I, J, M, N, Q, Microcreagris duncani Chamberlin; B, E, L, R, Chelifer cancroids (Linnaeus); K, Garypus beauvoisii (Savigny); O, Chthonius tetrachelatus (Preyssler); P, Feaella indica sp. Nov.
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