Anew species of smirnovipinid copepod (Copepoda: Cyclopoida: Smirnovipinidae) from an anchialine cave in Italian coastal waters, with a replacement name for the genus Ginesia Jaume and Boxshall, 1997

摘要

A new smirnovipinid copepod has been found in a shallow coastal cave located between the villages of Bagnara and Palmi on the Calabria coast. The new species belongs to genus Ginesia Jaume and Boxshall, but this name is already taken by Ginesia Fernandez Yepez, a genus of freshwater fish from South America. The name Costanzoia is proposed as replacement and Costanzoia longicaudata, new combination, is the type of species by original designation. The new species Costanzoia longiseta is characterized by the extraordinary length of the apical seta on the fifth leg, which extends as far as the distal margin of third urosomal somite of the female, and by the length of seta II on the caudal rami. C. longiseta sp. nov. is very similar to shallow water hyperbenthic forms such as Cyclopinoides, Oromiina, and Smirnovipina, which also belong to family Smirnovipinidae. The discovery of C. longiseta sp. nov. confirms the presence and spread of this genus in anchialine caves of the Central Mediterranean Sea. Inthe cave the new species co-occurred with other cyclopoid species such as Euryte longicauda and Eupolymniphilus sp.