Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 62. (Budapest 1970)

Stahnke, H. L.: Ergebnisse der zoologischen Forschungen von Dr. Z. Kaszab in der Mongolei. 230. Scorpions

Table 1. Mean S. D C.V. 1. Total Length 33. 29 6.9 20. 7 35. 04 9. 7 27. 7 2. Caudal L 5. 25 0.23 4.4 Carapace L $ 4. 78 0, 09 1. 9 3. Carapace L 2. 61 0. 09 3. 5 Carapace anterior L 2. 54 0. 1 5 5. 8 4. Caudal L 4. 57 0. 06 1.4 CaudalSeg V L 4. 51 0. 11 2. 4 5. Carapace L 0. 89 ' 0. 03 3. 6 CaudalSeg V L $ 0. 94 0. 05 5. 3 6. Caudal Seg V L 2. 02 0. 09 4. 4 Caudal Seg V W 1. 98 0. 14 6. 8 7. Caudal Seg V L 1 . 86 0. 05 2.9 CaudalSeg I L 1 . 91 0. Í4 7. 1 8. Chela L 3. 36 0. 51 1 5. 0 Manus W $ 3.65 0.47 12.9 9. Chela L 1 . 53 0. 04 2. 8 Tarsus JL Î 1. 52 0. 04 1. 1 10. Chela Lt 2. 03 0. 03 1.5 Femur L. ? 2. 03 0.12 5. 7 1 1. Pectinal teeth 25.9 1. 07 4 20.9 1 . 06 5 that of the Q 35. According to the samples and statistics the female is the larger of the sexes. This is somewhat unusual among buthids; for that matter, it is generally not so throughout the order. Perhaps more extensive sampling would change the pattern. Allometric growth in this taxon does not seem to be largely confined to the male as is the case frequently among scorpions. This condition seems to be greater for the male only in items 2 and 8, but greater in the female for items 3, 5, 6, 7 and 10. The number of pectinal teeth of the samples varied from 19 to 23 (M 20.8) in the female and from 24 to 28 (M 26.0) in male. The ecological aspects available attest to the hight survival capabilities of this taxon. The most common habitat consisted of rocky, barren, plantless areas where the scorpions were found isolated under moderate sized rocks. The climate of the Gobi is one of great extremes, combined with rapid changes in temperature, not only at all seasons of the year but even within 24 hours—as much as 32 °C (58 °F). For example at Ulan-Baator, elevation 1200 metres (about 3800 ft), the annual mean is -2.5 °C (27.5 °F), the January mean -26.5 °C (-15.7 °F) and the July mean 17.5 °C (63.5 °F), the extremes being —42.5 °C (-44.5 °F) and 38 °C (100.5 °F). Even in southern Mongolia the temperature drops to —32.5 °C (—27 °F) and during July in Alashan (the type habitat) the temperature goes up to about 38 °C (100 °F) day after day. The annual rainfall at Ulan-Baator is about 24 cm (9.6 in).