The genus Hemigobius Bleeker, 1874 is has been regarded as only two valid species in previous study including H. hoevenii (Bleeker, 1851) and H. mingi (Herre, 1936). Traditionally, the both Vaimosa crassa Herre, 1945 and Mugilogobius obliquifasciatus Wu and Ni, 1985 found from Chinese and Taiwanese waters had ever been regarded as the junior synonyms of H. hoevenii. However, our present study have been confirm that H. crassa collected from Hong Kong and Taiwan is a valid species. The H. crassa can be well distinguished from H. hoevenii based on several morphological features. The molecular phylogenetic analysis firstly based on the mitochondrial partial sequences of ND5, complete Cyt-b genes and D-loop region. The distinct mitogenetic differentiation has been observed between both H. hoevenii and H. crassa. The phylogenetic trees also reveal that H. crassa and H. hoevenii are sister group, and H. mingi belong to another distant clade.
Huang, Shih-Pin; Chen, I-Shiung; and Shao, Kwang-Tsao
"THE MOLECULAR PHYLOGENY OF GENUS HEMIGOBIUS (TELEOSTEI: GOBIIDAE), WITH THE COMFIRMATION OF VALIDITY OF HEMIGOBIUS CRASSA (HERRE, 1945),"
Journal of Marine Science and Technology: Vol. 21:
7, Article 12.
Available at: https://jmstt.ntou.edu.tw/journal/vol21/iss7/12