Apogastropoda was previously used as a major taxonomic grouping of sea snails, marine gastropod molluscs. This infraclass mostly consisted of marine limpets and operculate snails. At least 20,000 species were considered to exist within the two clades that were included, Heterobranchia and Caenogastropoda. Gastropods that were placed in this taxon ...
Found on
http://en.wikipedia.org/wiki/Apogastropoda
(from the article `mollusk`) ...StreptoneuraMostly marine limpets or operculate snails; 3 ganglia at visceral loop; orders include Archaeogastropoda (long cerebropleural ...
Found on
http://www.britannica.com/eb/a-z/a/88
No exact match found.
