Heterometrus liangi
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| Zhu & Yang , 2007 |
Heterometrus liangi is a Vietnamese scorpion in the Scorpionidae family . The species was described after specimens from the Chinese pet trade .
description
Heterometrus liangi is a rather small member of the genus Heterometrus with a length of 82 to 98 millimeters . The entire body has a reddish black basic color. The comb organ is yellowish in color and has 16 to 18 teeth in males and 15 to 16 in females. The sternum is pentagonal and longer than it is wide. The telson is black to reddish brown, elongated and hairy. The poison sting is shorter than the poison bladder, reddish brown at the base and black at the top.
Heterometrus liangi is particularly similar in shape to the chelae of the species Heterometrus laoticus , which, however, becomes larger and dorsally smooth surfaces of the chelae, carapace and mesosoma . Heterometrus liangi has a granular surface with pronounced granules. From the also very similar petersii Heterometrus differs Heterometrus liangi in that in male and female animals of the movable finger of the scissors is formed the same. In the males of Heterometrus petersii , the mobile finger on the gripping surface in the middle has a pronounced tooth, which is missing in the female scorpions of this species. In addition, the color of Heterometrus liangi is a reddish black while Heterometrus petersii is a greenish black color.
distribution
The terra typica of Heterometrus liangi is located in the south of Vietnam , in the province of Tây Ninh . In a more recent publication on the scorpion fauna of Vietnam, the type location was given more precisely with the district Tân Biên without further explanation ( 11 ° 36 ′ 0 ″ N , 105 ° 54 ′ 0 ″ E ).
Systematics
Initial description
The first description was made by the Chinese arachnologists Ming-Sheng Zhu and Xiao-Feng Yang in 2007 on the occasion of an investigation of scorpions from the Chinese pet trade. The researchers' interest was aroused by the fact that at the beginning of the 21st century, large dark scorpions were offered as pets under common names in Chinese pet stores and under various scientific species names on the Internet . Southern China was regularly given as their origin. Ming-Sheng Zhu bought some scorpions for sale in pet stores in May 2006 from Yi-Ming Liang, an importer of scorpions from Nanning, Guangxi Autonomous Region , southern China. Liang's business records revealed that the scorpions came from the Vietnamese province of Tây Ninh, and that Liang imported more than 350,000 scorpions from there between October 2005 and February 2006 alone.
The scorpions that Liang acquired belonged to various taxa , including three species of the genus Heterometrus. One species was identified as Heterometrus petersii , while a second was Heterometrus liangi .
Type copies
A male specimen was determined as the holotype , plus two male and two female paratypes. The types are located in the Hebei University Museum in Baoding , Hebei Province . According to the information in Liang's business records, the Vietnamese province of Tây Ninh was given as terra typica . The date of the discovery is not known.
etymology
The species name honors Yi-Ming Liang , the animal dealer from Nanning, Guangxi Autonomous Region, who had sold Zhu the specimens of Heterometrus liangi on which the species description is based .
toxicology
The poison from Heterometrus liangi activated the CDK inhibitor 1 and the caspase CASP3 in a laboratory test in a line of human cells from esophageal cancer . There is hope that cancer therapy will be able to induce cell death in such cancer cells in a targeted manner.
Individual evidence
- ↑ a b c d e f g Ming-Sheng Zhu and Xiao-Feng Yang: Two species of the genus Heterometrus Ehrenberg, 1828 (Scorpionidae) from South Vietnam sold in pet shops in China. In: Acta Arachnologica Sinica 2007, Volume 16, No. 2, pp. 92-103, ISSN 1005-9628 .
- ↑ Dinh-Sac Pham, Thi-Hang Tran and Wilson R. Lourenço: Diversity and endemicity in the scorpion fauna of Vietnam. A preliminary synopsis. In: Comptes Rendus Biologies 2017, Volume 340, pp. 132-137, doi : 10.1016 / j.crvi.2016.11.006 .
- ↑ Qinjin Li, Kaifu Xiao, Zhi Wang: Cytotoxic and Apoptotic Effects of the Venom of the Scorpion Heterometrus liangi in Human KYSE-510 Cells (Esophageal cancer). In: Liu Chang, Chang Guiran and Luo Zhen (eds.): Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering, pp. 750-755, ISBN 978-94-62520-62-2 , doi : 10.2991 / meic-15.2015.171 .
- ↑ KF Xiang et al .: Effect of the Venom of the Scorpion Heterometrus liangi on the Expression of P21 and Caspase-3 Gene in Human Kyse-510 Cell. In: Advanced Materials Research 2011, Volume 345, pp. 399-404, doi : 10.4028 / www.scientific.net / AMR.345.399 .