Premium
Espéces affines microsympatriques chez Puellina (Bryozoa, Cheilostsmata) et description d'espèces nouvelles
Author(s) -
HARMELIN JEANGEORGES
Publication year - 1988
Publication title -
zoologica scripta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 64
eISSN - 1463-6409
pISSN - 0300-3256
DOI - 10.1111/j.1463-6409.1988.tb00084.x
Subject(s) - bryozoa , littoral zone , biology , mediterranean climate , subspecies , ecology , taxon , subgenus , range (aeronautics) , mediterranean sea , taxonomy (biology) , habitat , biogeography , zoology , materials science , composite material
The existence of microsympatry (close coexistence in microhabitats) allows morphologically very similar forms belonging to intraspecifically highly variable taxa to be distinguished by consistent microanatomical characteristics at the specific level. Four pairs of closely related species of Puellina Jullien (Bryozoa, Cheilostomata, Cribrimorpha), microsympatric in the Mediterranean Sea to different degrees according to the magnitude of their coexistence, are considered at the systematic, ecological and biogeographic levels. P . ( Cribrilaria ) innominata (Couch) coexists with: (1) P . ( C .) picardi sp. n., in a wide range of littoral and deep habitats; (2) P . ( C .) hincksi (Friedl), in ecological transition zones within sciaphilic littoral communities. P . ( Glabrilaria ) pedunculata Gautier, an apparently Mediterranean endemic with a wide depth range, coexists with: (1) P . ( G .) orientalis orientalis sp. et ssp.n., in deep hard bottoms of the eastern Mediterranean, two other subspecies, P . ( G .) orientalis azorensis ssp.n. and P . ( G .) orientalis lusitanica ssp.n., being distributed in the near Atlantic; (2) P . ( G .) corbula Bishop & Househam, recently described from the English Channel, in cryptic littoral microhabitats of the northwestern Mediterranean.