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A new species of Petrolisthes (Crustacea, Anomura, Porcellanidae) inhabiting vermetid formations (Mollusca, Gastropoda, Vermetidae) in the southern Caribbean Sea
Ist Teil von
ZooKeys, 2019-09, Vol.876, p.143-151
Ort / Verlag
Sofia: Pensoft Publishers
Erscheinungsjahr
2019
Quelle
EZB Electronic Journals Library
Beschreibungen/Notizen
Petrolisthes virgilius
sp. nov.
from the Caribbean Sea of Colombia is described. The new species resembles
P. tonsorius
morphologically but differs from it principally by its color and habitat.
Petrolisthes tonsorius
is brown or blueish brown and occurs under intertidal boulders strongly exposed to water movement.
Petrolisthes virgilius
sp. nov.
is pale brown to beige and lives exclusively in intertidal areas dominated by vermetid snails, exposed to heavy wave action. The entangled tubular shells of vermetids are cemented to each other and to a hard substrate like beach rock, forming a microhabitat for the new crab species and other porcellanids of the genera
Neopisosoma
and
Clastotoechus
. Large genetic distances between DNA sequences of the mitochondrial 16S rDNA gene from
P. virgilius
sp. nov.
and
P. tonsorius
confirmed that they comprise different species.
Petrolisthes virgilius
sp. nov.
is the 53
rd
member of the West Atlantic porcellanid fauna.