Dear Patrick,

All three are valid species and are now placed in the genus Nodilittorina. There has been a lot of study of the anatomy and general biology of each species (and other look-alike W. Atlantic congeners; see:

Bandel, K. and D. Kadolsky, 1982. Western Atlantic species of Nodilittorina (Gastropoda: Prosobranchia): comparative morphology and its functional, ecological, phylogenetic and taxonomic implications. Veliger 25(1): 1-42. July 1.

Harry

At 12:00 AM 6/26/00 -0400, you wrote: >Dear all, > What is the current taxonomic status of Littorina angustior, L. >lineolata, and L. ziczac? Are they forms of a single species or are they >seperate, distinct species? >Patrick Harry G. Lee Suite 500 1801 Barrs St. Jacksonville, FL 32204 USA 904-384-6419 <shells@hglee.com> Visit the Jacksonville Shell Club Home Page at: http://home.sprynet.com/~wfrank/jacksonv.htm

oo .--. oo .--. oo .--. \\(____)_ \\(____)_ \\(____)_ `~~~~~~~` `~~~~~~~` `~~~~~~~`