Vol. 47 No. 5, 2008
Pseudocyclops giussanii (Copepoda: Calanoida: Pseudocyclopidae), a New Species from Lake Faro (Central Mediterranean Sea)
Giacomo Zagami*, Cinzia Brugnano, and Giuseppe Costanzo
Department of Animal Biology and Marine Ecology, University of Messina, 98166, Messina, S. Agata, Salita Sperone 31, Italy
Giacomo Zagami, Cinzia Brugnano, and Giuseppe Costanzo (2008) A new species of the calanoid copepod genus Pseudocyclops
is described from a Mediterranean coastal lake on Sicily (Italy).
Out of 34 species comprising the genus Pseudocyclops, the new
species and P. mirus are
characterized by an unsegmented endopod of leg 1, a very narrow and
elongate prosome, similar armature of the female leg 5, and an
antennule with 16 segments. Since a combination of these
characters is unique within the genus, these 2 species, together with Pseudocyclops sp., which is as yet undescribed but is very close to P. giussanii
sp. nov., should be recognized in a distinct species group, referred to
here as the mirus-group, which is geographically distributed around the
eastern Atlantic-Mediterranean region. The record of P. giussanii sp. nov. increases the number of known Mediterranean species of Pseudocyclops to 5, of which P. xiphophorus, P. costanzoi, P. giussanii sp. nov., and Pseudocyclops sp. are so far known to occur exclusively in Lake Faro. The discovery in Lake Faro of 4 other Pseudocyclops species (P. umbraticus, P. xiphophorus, P. costanzoi, and Pseudocyclops
sp.), in addition to the new species, is particularly interesting with
regard both to their biogeographic distribution patterns and
evolutionary history. Ecological, biological, and zoogeographical
notes are also provided.
Key words: Taxonomy, New species, Pseudocyclops, Lake Faro, Mediterranean coastal lake.
*Correspondence: Fax: 39-09-0393409. E-mail:firstname.lastname@example.org