K. Karuppiah, K. Rajendran, Y. Mariasingarayan, C. P. Kumarasamy, K. Ethiraj
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引用次数: 0
Abstract
Lethrinidae is one of the commercially important fish in India. The present study provides detailed morphometric, meristic characters and colour patterns of Monotaxis heterodon (Bleeker, 1854). The unique key characters of M. heterodon are having 24 vertebrae, the teeth patterns of both the jaws having molar teeth present in both jaws 4+3 but 6 canines in upper jaw and 4 canine teeth in lower jaw. Specifically, this species has dark brownish lips, no black spots at base of soft dorsal fin and 13 scale rows below lateral line to anal-fin origin. The COI gene sequence and phylogenetic analysis confirmed that Monotaxis heterodon and Monotaxis grandoculis were genetically distinct species and conform the distribution of M. heterodon in Indian Exclusive Economic Zone. In addition, molecular analysis using partial mitochondrial COI gene suggests that genetic distance within M. heterodon group was 0.32% of group mean distance between M. heterodon and M. grandoculis was 8.37%. Further, the present study revealed the range of extension of its known geographical distribution in addition to the ichthyofaunal biodiversity of southeast coast of India.
期刊介绍：
Journal of Ichthyology is an international peer-reviewed journal published in collaboration with the Russian Academy of Sciences. It covers original studies in fish taxonomy, evolution, molecular biology, morphology, species diversity, zoological geography, genetics, physiology, ecology, behavior, reproduction, embryology, invasions, and protection. Some problems of applied ichthyology are also covered. The journal welcomes manuscripts from all countries in the English or Russian language.
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