P. Pospisil et F. Stoch, REDISCOVERY AND REDESCRIPTION OF AUSTRIOCYCLOPS-VINDOBONAE KIEFER, 1964 (COPEPODA, CYCLOPOIDA) WITH REMARKS ON THE SUBFAMILY EUCYCLOPINAE KIEFER, Crustaceana, 70, 1997, pp. 901-910
Since the publication of the description of Austriocyclops vindobonae
Kiefer, 1964, all known material was represented by a single female co
llected in a groundwater well in Vienna (Austria), characterized by a
strong reduction of leg 5. The recent discovery of several specimens o
f A. vindobonae in phreatic waters in Vienna allows a redescription of
the female and the first description of the male. The rudimentary fif
th leg consists of one or two setae and resembles that of some Cyclopi
nae genera; however, the presence of tube-like, plumed aesthetascs on
the male antennula and the spine pattern of the basipod of the antenna
reveal that the genus Austriocyclops belongs to the subfamily Eucyclo
pinae. The inadequacy of using the fifth leg in the definition of this
subfamily is discussed, and new characteristics for definition (shape
and location of aesthetascs on male antennule and ornamentation patte
rn of antenna basipod) are proposed.