The original description of male hypopygium of Tipula(Emodotipula) holoteles Alexander, 1924 is expanded with additional morphological characters and detailed illustrations. The additional morphological descriptions o...The original description of male hypopygium of Tipula(Emodotipula) holoteles Alexander, 1924 is expanded with additional morphological characters and detailed illustrations. The additional morphological descriptions of the female ovipositor along with detailed drawings are provided. The male semen pump and the female vaginal apodeme as well as the spermatheca are also described and illustrated for the first time, representing the first report of these structures of Tipula(Emodotipula) holoteles. Additionally, the taxonomic potential of the semen pump in the subgenus Emodotipula is analyzed and discussed. The new specific name Tipula(Emodotipula) yangi nom. nov. is proposed as a replacement name for junior homonym Tipula(Emodotipula) alexanderi Men, 2017. A worldwide checklist and a key to Chinese species of the subgenus Emodotipula are provided.展开更多
In this study, nest spawning was successfully induced by exogenous hormone injections and seawater flow stimulation, and optimum condition for hatching fertilized eggs of burrow fish mudskipper, Boleophthalmus pectini...In this study, nest spawning was successfully induced by exogenous hormone injections and seawater flow stimulation, and optimum condition for hatching fertilized eggs of burrow fish mudskipper, Boleophthalmus pectinirostris, was searched. Apart from spawning inside the nests, females also spawned outside the nests. The percentages of spawned nests were 8.0% to 24.2%. Most eggs were observed adhered to the inner wall of the top half of the nest. Fertilization rates of the nest-spawned eggs varied from 17.3% to 80.8%. Females could spawn after being artificially confined inside the nests with males at ratios of 1:1 or 1:2, but the spawned eggs were not fertilized. Mean hatching rates of artificially fertilized eggs incubated in round plastic buckets were 32.7%-70.6%, and in the net cages, were 4.2%-20.5%, respectively. Mean hatching rates of nest- fertilized eggs incubated in the round plastic buckets were 33.6%-76.3%, and in the net cages, were 5.9%-25.2%. Results showed that round bucket incubation was the best way for hatching fertilized eggs of mudskipper. Keeping the hatching seawater flowing is an important way for increasing the hatching rates of the mudskipper fertilized eggs.展开更多
基金supported by the National Natural Science Foundation of China (31300551)the Anhui Outstanding Young Talent Support Program (gxfx2017059)
文摘The original description of male hypopygium of Tipula(Emodotipula) holoteles Alexander, 1924 is expanded with additional morphological characters and detailed illustrations. The additional morphological descriptions of the female ovipositor along with detailed drawings are provided. The male semen pump and the female vaginal apodeme as well as the spermatheca are also described and illustrated for the first time, representing the first report of these structures of Tipula(Emodotipula) holoteles. Additionally, the taxonomic potential of the semen pump in the subgenus Emodotipula is analyzed and discussed. The new specific name Tipula(Emodotipula) yangi nom. nov. is proposed as a replacement name for junior homonym Tipula(Emodotipula) alexanderi Men, 2017. A worldwide checklist and a key to Chinese species of the subgenus Emodotipula are provided.
基金Supported by the NSFC (No. 30170739) and also supported by the Provincial Natural Science Foundation of Fujian Province (No. B0210003).
文摘In this study, nest spawning was successfully induced by exogenous hormone injections and seawater flow stimulation, and optimum condition for hatching fertilized eggs of burrow fish mudskipper, Boleophthalmus pectinirostris, was searched. Apart from spawning inside the nests, females also spawned outside the nests. The percentages of spawned nests were 8.0% to 24.2%. Most eggs were observed adhered to the inner wall of the top half of the nest. Fertilization rates of the nest-spawned eggs varied from 17.3% to 80.8%. Females could spawn after being artificially confined inside the nests with males at ratios of 1:1 or 1:2, but the spawned eggs were not fertilized. Mean hatching rates of artificially fertilized eggs incubated in round plastic buckets were 32.7%-70.6%, and in the net cages, were 4.2%-20.5%, respectively. Mean hatching rates of nest- fertilized eggs incubated in the round plastic buckets were 33.6%-76.3%, and in the net cages, were 5.9%-25.2%. Results showed that round bucket incubation was the best way for hatching fertilized eggs of mudskipper. Keeping the hatching seawater flowing is an important way for increasing the hatching rates of the mudskipper fertilized eggs.
