A new species of Pseudanthessius (Copepoda: Cyclopoida: Pseudanthessiidae) on Epinephelus sp. (Actinopterygii: Perciformes: Serranidae) from Chuuk Lagoon, Federated States of Micronesia
Uyeno, D.; Rain, D. (2021). A new species of Pseudanthessius (Copepoda: Cyclopoida: Pseudanthessiidae) on Epinephelus sp. (Actinopterygii: Perciformes: Serranidae) from Chuuk Lagoon, Federated States of Micronesia. Species Divers. 26(2): 249-254. https://dx.doi.org/10.12782/specdiv.26.249
In: Species Diversity. Japanese Society of Systematic Zoology: Sapporo. ISSN 1342-1670, more
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| Keywords |
Animals > Invertebrates > Arthropods > Crustacea > Copepoda > Cyclopoida
Taxonomic status > New taxa > New species
Actinopterygii [WoRMS]; Copepoda [WoRMS]; Pseudanthessiidae Humes & Stock, 1972 [WoRMS]; Pseudanthessius chuukensis Uyeno & Rain, 2021 [WoRMS]
Marine/Coastal |
| Author keywords |
Pseudanthessiidae; copepod; new species; Chuuk; Micronesia; Actinopterygii |
| Abstract |
A copepod, Pseudanthessius chuukensis Uyeno, n. sp. (Cyclopoida: Pseudanthessiidae), is described based on the type specimen obtained from the grouper Epinephelus sp. (Actinopterygii: Perciformes: Serranidae) caught in Chuuk Lagoon (North Pacific Ocean), Federated States of Micronesia, North Pacific Ocean. The copepod differs from its congeners in the following female characters: the urosome is 5-segmented; caudal rami are five to six times longer than wide; the distal endopodal segment of leg 1 carries three spines and three setae; leg 4 endopod has two setae, without proximal swellings, and as long as about two-third of that of the exopod. This finding of the copepod is the first record of the family Pseudanthessiidae from the actinopterygian fish. |
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