Figure 40 in High and dry: integrative taxonomy of the Andean spider genus Nerudia (Araneae: Pholcidae)

Figure 40. Nerudia poma sp. nov., male chromosome plates. Panels B, C contain a scheme of the sex chromosome multivalent (blue – X chromosomes, orange – Y chromosome). A, mitotic metaphase, 2n = 26. Note the predomination of biarmed chromosomes. The Y chromosome is the smallest element of the complement. B, C, metaphases I consisting of 11 bivalents and a sex chromosome multivalent comprising three X chromosomes and a Y chromosome. Multivalent delimited by dotted line. D, metaphase II containing X chromosomes (n = 14). It is impossible to distinguish the X chromosomes from other chromosomes. E, early metaphase II containing the Y chromosome (n = 12). The Y chromosome is the smallest chromosome of the plate. F, late metaphase II containing the X chromosomes (n = 14). Note the predomination of biarmed chromosomes. This plate was used to construct the haploid karyotype of the species (Fig. 41). Abbreviations: m, sex chromosome multivalent; X, X chromosome; Y, Y chromosome. Scale lines: 10 µm.