New taxa (9): Bostryx
14-01-2009 21:51
Also recently, some new species were published
of
Bostryx.
They were discovered during the revision of
manuscript names of Weyrauch and occur both in Peru,
Dept. Lima, Río Rimac valley.
The type locality of Bostryx primigenius sp.n. is El Infernillo, the pass through which both the highway and the train to La Oroya passes.
There is a gradual transition to the next species in a hybrid zone near Tambo de Viso, which is the type locality of Bostryx multiconspectus sp.n.
So far, it remains unknown what drives the peculiar transition and the carinated shape at this locality. “Ecological stress”, as suggested by Craig? Or some other mechanism? And what is the evolutionary advantage? Questions that remain to be solved...
Reference
Breure, A.S.H., 2008. Carination strikes the eye: extreme shell shapes and sibling species in three Andean genera of the Orthalicidae (Gastropoda, Stylommatophora). - Zoologische Mededelingen 82: 499-514.
The type locality of Bostryx primigenius sp.n. is El Infernillo, the pass through which both the highway and the train to La Oroya passes.
There is a gradual transition to the next species in a hybrid zone near Tambo de Viso, which is the type locality of Bostryx multiconspectus sp.n.
So far, it remains unknown what drives the peculiar transition and the carinated shape at this locality. “Ecological stress”, as suggested by Craig? Or some other mechanism? And what is the evolutionary advantage? Questions that remain to be solved...
Reference
Breure, A.S.H., 2008. Carination strikes the eye: extreme shell shapes and sibling species in three Andean genera of the Orthalicidae (Gastropoda, Stylommatophora). - Zoologische Mededelingen 82: 499-514.