Poropsyllus, George, 2021

George, Kai Horst, 2021, Four new genera of the Ceratonotus group (Copepoda, Harpacticoida), including the description of two new species, European Journal of Taxonomy 774, pp. 1-41 : 4

Genus Poropsyllus gen. nov.

urn:lsid:zoobank.org:act:FF3B0077-C40A-464C-9D52-B0F43FA82497

Etymology

The generic name is given in respectful remembrance of the collector of the species, Prof. Dr Francis Dov Por ( Israel) and is a compound of the collector’s name and the Greek ψύλλος [psillos] (‘flea’), a term often used in the naming of taxa of the Ceratonotus group (e.g., Dendropsyllus , Echinopsyllus , Pseudechinopsyllus ). Gender: masculine.

Type and only species

Poropsyllus menzelae gen. et sp. nov.

Diagnosis

Member of Cletodidae T. Scott, 1905 , Cletodinae T. Scott, 1905 and Ceratonotus group sensu Conroy-Dalton (2001). Body elongate, cylindrical, podoplean boundary between pro- and urosoma inconspicuous. Sexual dimorphism in A1, P3, P5, and P6; female with GDS due to fusion of last (P6- bearing) thoracic and first abdominal (genital) somites. Cphth about ¼ of total body length, with some sensilla and long tube pores laterally and dorsally; moreover, with small, sensilla-bearing frontolateral horns (FLH), ventrally directed cephalothoracic anterior lateroventral processes (CLVPa), and bifurcate cephalothoracic posterior lateroventral processes (CLVPp). Cephalic front produced into a massive diverging peak. P2–P4-bearing pedigerous somites with dorsal cuticular processes. Rostrum absent, original central position indicated by small paired membranous projections accompanied by a pair of sensilla and 1 tube pore. Body somites except last thoracic somite (= anterior half of female GDS) and telson laterally with 1 long tube pore. Thoracic body somites dorsally also with 1 long tube pore. Telson broader than long, trapezoid in dorsal view, anal operculum flanked by 2 sensilla, posterior margin with row of fine spinules. FR long and slender, diverging, with 7 setae. Female A1 slender, 4-segmented, male A1 sexually dimorphic, number of segments unknown. A2 without exopod, allobasis with 2 abexopodal setae; endopod 1-segmented, with 2 spines and 1 slender additional seta; apically with 5 setae, 3 of which geniculate. Intercoxal sclerites of P1–P4 slender, bow-like; P1 with transversely elongated basis and 2-segmented exopod, endopod absent, represented by 1 long bare seta; bases of P2–P4 showing extreme transverse elongation, without endopods, except male P3, which bears a 3-segmented endopod with an apophysis on enp-2. P5 also considerably elongated, reaching anterior margin of telson; in the female with exopod fused to baseoendopod, in male exopod distinct.