Bio 425 Aquatic Zoology Lab Taxa II

Kingdom Animalia

Phylum Mollusca

Class Gastropoda

Subclass Prosobranchia – aquatic, “gill-breathing” snails, dextral aperture

Family Pleuroceridae

Elimia sp. – streamlined, spire-like shell

Family Viviparidae

Campeloma sp. – bulbous shell

Subclass Pulmonata – “air-breathing” snails derived from terrestrial ancestors, generally tolerant of degradation

Family Lymnaeidae

Pseudosuccinea sp. – thin shell, dextral aperture

Family Physidae

Physa sp. (synonym of Physella) – thin shell, sinistral aperture

Family Planorbidae

Helisoma sp. – planospiral shell