Guoyi Zhang

Guoyi Zhang
Shandong Normal University | SDNU · College of Life Sciences

Bachelor of Science


How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
Citations since 2017
9 Research Items
5 Citations
The research interests contain taxonomy, biogeography and phylogeny of terrestrial Mollusca. Hooked on Taxonomy of terrestrial Malacology, Zhang mainly works on Camaenidae in China and adjacent regions using morphological and molecular methods. More information can be seen from the web
Skills and Expertise
September 2017 - June 2021
Shandong Normal University
Field of study
  • Biotechnology


Publications (9)
Full-text available
The genus PseudiberusAncey, 1887, in Shandong, China, distributed in the mid to the south mountainous areas of the province, represents the largest terrestrial mollusks in this region. By molecular phylogenetic inference and genetic distance comparison based on ITS2 + 16S sequences, P. tectumsinense tectumsinense (Martens, 1873), P. tectumsinense z...
Full-text available
The type specimens of the species described by Yen (1935) in the genera Cathaica Möllendorff, 1884 and Pseudiberus Ancey, 1887 have been re-examined and are illustrated for the first time in colour and at a high resolution. A total of 12 holotypes and 28 paratypes are considered. These types are all deposited in the Tianjin Natural History Museum (...
Full-text available
Eostrobilops wuranicus [无染始球果螺] Zhang, n. sp. is reported as a new species herein, with information on the species’ ecology. This new species can be separated from other Eostrobilops species distributed in China, Korea, Japan and other adjacent regions by the ribless shell, the four basal folds and the two lamellae. Inner shell structures, i. e., t...
Full-text available
Correction for New Eostrobilops Pilsbry, 1927 (Eupulmonata: Strobilopsidae) of China
Full-text available
Shells were not bulk business target in China’s economic tradition. However, this situation has been changed recently. Has such shell trading affected the malacodiverisity of the places where these shells come from? Is there any realtime or potential negative influence of this business practice on mollusk conservation? The story of Mr. Jing He, the...
Conference Paper
Full-text available
Full-text available
Since the beginning of 2019, the web cartoon and flash animation The Legend of Luo Xiaohei1 (in short, Luo Xiaohei) has been viewed more than 72 million times on barrage video website Bilibili (https://www. It premiered on March 17, 2011, and has since been updated at a very slow pace. Currently, there are only 27 episodes, each las...
Full-text available
Three new synonyms are recognised among recently described camaenid taxa from China. Two subspecies of the newly described Bradybaena changchunensis Sun, Zeng et He, 2017 are to be referred to B. virgo (Pilsbry, 1927), and the newly described Nesiohelix meiqiui Ge et He, 2017 is referred to Aegistohadra delavayana (Heude, 1885). Differences in the...


Questions (5)
Thach published works on Mollusca without peer review and many articles point out the mistakes ( Páll-Gergely et al. 2020; Sutcharit et al. 2019). Now Thach et al. (2020) use the simple but blurry morphological evidence to show his taxonomic action are valid.
These are evidence-limited and endless arguments. No one can tell which taxonomic actions are wrong only based on morphological characters in the much variable species complex (I don't think Amphidromus is an independent species). Both of them didn't use the molecular or phylogenetic methods to persuade each other but only focus on the limited and variable morphology. How can we avoid it in the further malacological studies? And how can we deal with the colonialism and anti-intellectualism in taxonomy?
A) The Colonialism
What I notice now is the malacological work on Mollusca species from SouthEastern Asia usually face the problem. Usually, studies don't contain molecular and inner morphological (e.g. genital systems, jaw and radula) data and the studied species are always variable. The collecting localities are not clear and usually claim a large distribution. The unclear localities information would hint that the studied specimens are from trade. And little conservation information is studied, so the trade can be crazy. As I see on Facebook, specimens trade of SouthEastern Asia are usually unethical, local people collect too many, though the destroying of inhabited is the most probable damage, the bulk business would replace inhabitation destroy in the role of species extinction if no actions are taken in the future. The similar issue sees Zhang & Wu (2020), the story of J. He, taxonomic destroyer and his shell business. Don't blame local people, the species protection is always related to local economic developments. They have the right to try to live better like developed countries. Economic developments is also a historic issue, such as triangular trade.
These problems both present in scientists with or without employment by the academic institutions. But I haven't seen these problems in the team of Panha and Sutcharit.
Another crucial thing is that Thach and other related malacologists now start or have started to collect and study specimens from China illegally. I still have to warn the malacologists to follow local laws. Additionally, I have to warn that Dr Thach now actually offends Chinese Laws. If he enters the territory of China, I think, he will be fined and so on in theory.
I also want to mention malacologists working on Chinese Mollusca obtained by the illegal methods, the nature of the research from you and any other colleagues is chauvinism and colonialism at the new age. Type specimens went abroad and can't come back anymore. It's not easy for local malacologists and the future malacologists to check them anymore. Even some local traitors cooperated with the specimens predators, leading the holotypes to leave abroad. Also, in Thach's book, the name of specimens predators will be remembered by the history of taxonomy, very ugly names.
The colonialism taxonomic actions would loose much many information, such as environment, accurate locality information even the soft body. This is unethical action, hurting local future developments of science and the malacology. This action is only deserved for their personal silly honour and even would lead to the presence of the taxonomic destroyer.
B) The Anti-Intellectualism
If no more information show, I can't make sure which person is right. No genital systems, no radula, no jaw, no molecular data. The soft body lost?
Why we should spend time on these so subjective views? Why ICZN doesn't protect the Eu-Science? What can we do? It's just wastes of time and money. How can we defend the taxonomic destroyer out from the taxonomy and malacology? And why the museums don't behave well and receive specimens not considering the ethics?
I beg you all, taxonomy and malacology are not the personal business, and please do not do a lot of things that are not conducive to the development of taxonomy and malacology for your personal benefit.
D) References
Thach et al. (2020)
I perform phylogeny using TNT, but it seems that no sister group. But in fact, I use four species to analysis. The result is so strange. What setting selection should I choose?
I work on morphology work and use Morphometric data to analysis, such as PCA. Now could I use a matrix produced by MorphoJ to build a phylogenetic tree?
Could you please tell me which literature could tell me or which software I can use?
I download Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin (1874) on BHL. On pp43, the paper titled "Uehersicht der von AI. Fedtschenko in Turkestan gesammelten Conchylien", there are some remarks that show the pate exists, however, no figures.
Successfully read matrix
Setting default partition (does not divide up characters)
Setting model defaults
Seed (for generating default start values) = 1549699899
Setting output file names to "<i>.<p|t>"
Exiting data block
Reading mrbayes block
Unknown character "? (ASCII code -93)
The error occurred when reading char. 16 on line 172
in the file ''
Error in command "Execute"


Cited By


Projects (2)
Archived project
He edited "journal" named Shell Discoveries focusing on Mollusca in China and wrote pieces of research papers on it without peer-review. The manuscripts written by He is the majority of the continuous publication. Many simple mistakes occur in the publications and the taxonomic actions in these publications caused confusion of Malacology in China and even validation of ICZN is found. The aim of the project is to let malacologists against the "taxonomic" and "academic" actions by He.
Aim to taxa Bradybaeninae in Shandong