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On the synonymy of Delamarella Chappuis and Latiremus Božić (Copepoda, Harpacticoida, Latiremidae), including the description of D. obscura sp. nov. from the Black Sea

2005; Oxford University Press; Volume: 145; Issue: 3 Linguagem: Inglês

10.1111/j.1096-3642.2005.00188.x

1096-3642

Rony Huys, Süphan Karaytuğ, Vezio Cottarelli,

Marine Ecology and Invasive Species

A new species of DelamarellaChappuis, 1954 (Copepoda, Harpacticoida, Latiremidae), D. obscura sp. nov., is described from sandy beaches along the western Black Sea coast of Turkey, using both light and scanning electron microscopy. Additional morphological observations of the closely related D. galateaeCottarelli, 1971 are presented, based on topotype material from Sardinia and newly collected specimens from mainland Italy. Previous records of D. karamaniPetkovski, 1957 from the Bulgarian Black Sea coast are based on misidentifications and should be attributed to D. obscura sp. nov. All three species are morphologically similar, and criteria based on meristic and ornamentation characters are provided to distinguish them. Examination of copepodid V ♂ intermoult stages provided new insights into the morphology of the highly transformed P4 exopod of the adult male and its homology with reference to the female. A reassessment of the generic distinctiveness of Delamarella and the monotypic genus Latiremus Božić, 1969 revealed that morphological criteria, traditionally employed to separate both genera, are all essentially unsound and based on erroneous reports in the literature. Consequently, Latiremus is relegated to a junior synonym of the type genus, leaving Delamarella and ArbutiferaHuys & Kunz, 1988 as the only remaining valid genera in the family.