Danielle Defaye

Studies on Freshwater Copepoda: a Volume in Honour of Bernard Dussart

Bernard Dussarts contributions to limnology and freshwater copepodology comprise over 200 scientific papers, and his frequent travels have greatly stimulated interest in freshwater biology world-wide. This book presents a selection of recent research on the Copepoda of continental waters: a worthy tribute.

A new species of Attheyella ( Canthosella ) from Colombia and redescription of Attheyella ( Delachauxiella ) freyi (Copepoda: Harpacticoida: Canthocamptidae)

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A new species of Ambilimbus nom. nov., a replacement name for Amphicrossus Huys, 1991 (Copepoda, Cyclopoida, Erebonasteridae), from the Mid-Atlantic Ridge at 36°N (hydrothermal vent site Rainbow)

Abstract A new deep-sea species of Ambilimbus nom. nov. (Copepoda, Cyclopoida, Erebonasteridae) is described from the Mid-Atlantic Ridge (hydrothermal vent site Rainbow, 36°13′N 33°54′W, depth 2285 m). This is the first record for the family Erebonasteridae Humes, 1987 from the Mid-Atlantic Ridge. Ambilimbus nom. nov. is here proposed as a replacement name for Amphicrossus Huys, 1991, as the latter is preoccupied by Amphicrossus Erichson, 1843 (Insecta, Coleoptera). The new species, Ambilimbus arcuscelestis, is similar to A. pacificus (Huys, 1991) comb. nov. and A. tuerkayi (Martínez Arbizu, 1999) comb. nov. in having the third exopodal segments of legs 1 and 2 armed with four and five inner setae, respectively (instead of three and four inner setae as in A. spinulosus (Humes, 1989) comb. nov. and A. altalis (Humes & Huys, 1992) comb. nov.). It differs from its four congeners by the lack of the inner coxal seta on leg 3. This character and the mid-ventral processes located between the intercoxal sclerites of legs 1–4 are presumed to be apomorphies of the new species.

A new species of Moraria (Copepoda, Harpacticoida, Canthocamptidae) from groundwaters of Germany, including a key for the identification of the species of the Western Palaearctic Region

A new species of Moraria collected from interstitial waters of southern Germany is described. The new species Moraria glitzae n. sp. can be differentiated from other members of the genus by a combination of morphological traits related to the shape of the anal operculum, the armature of leg 4 and the ornamentation of the urosome in both sexes. Males of M. glitzae n. sp. have a typical number of armature elements on the endopods of legs 2 to 4, some of which with unique morphology. Females can be distinguished from those of other species of the genus by the number of antennular segments, the number of setae on the exopod of the antenna and the mandibular palp, the armature of legs 1, 3 and 4, and the size and armature of leg 5. The relationship of the new species to closely related species, viz., M. catalana , M. jana , M. stankovitchi and M. varica is discussed. The morphological differences to other species inhabiting groundwaters and epigean habitats of the region, viz., M. alpina , M. brevipes , M. fontinalis , M. mrazeki mrazeki , M. mrazeki macedonica , M. pectinata , M. poppei and M. radovnae are presented. A distribution map of the Moraria species known from Germany and a dichotomous identification key of the 20 species from the Western Palaearctic Region are provided.