Figures 44–53 in Etudes on iurids, II. Revision of genus Calchas Birula, 1899, with the description of two new species (Scorpiones: Iuridae)

Figures 44–53: Calchas birulai, sp. nov. 44–50. Male holotype (NMW), Mardin, Turkey. 44. Carapace showing close-up of lateral eyes. 45. Leg IV (left, ventral view), showing the tibial spur. 46. Stigma IV. 47. Sternum, genital operculum, and pectines. 48. Chelal fixed and movable finger dentition. 49. Telson and metasomal segments IV–V, lateral view. 50. Metasomal segment V and telson, ventral view. 51–52. Female paratype (NMW), Mardin, Turkey. 51. Telson, ventral view. 52. Sternum, genital operculum, prepectinal plate, and pectines. 53. Female paratype (HNHM), Kavurma Köyü, Diyarbakır Province, Turkey. Chelicerae, ventral and dorsal views.