prosobranchia- gills in front

opisthobranchia- gills behind

Pavle Radoman has written:

'Hydrobioidea, a superfamily of Prosobranchia (Gastropoda)' -- subject(s): Classification, Mollusks, Prosobranchia

'New classification of fresh and bra[c]kish water Prosobranchia from the Balkans and Asia Minor' -- subject(s): Classification, Mollusks, Prosobranchiata

Richard S. Houbrick has written:

'Genus Clypeomorus Jousseaume (Cerithiidae:Prosobranchia)' -- subject(s): Classification, Clypeomorus, Mollusks

'Monograph of the genus Cerithium Bruguiere in the Indo-Pacific (Cerithiidae--Prosobranchia)' -- subject(s): Cerithium, Classification

'Anatomy, reproductive biology, and phylogeny of the Planaxidae (Cerithiacea-Prosobranchia)' -- subject(s): Planaxidae

Kenneth J. Boss has written:

'Johannes Thiele and his contributions to zoology' -- subject(s): Mollusks

'Monograph of the genus Alcadia in Cuba (Mollusca: Prosobranchia: Helicinidae)' -- subject(s): Alcadia, Gastropoda