Scientific Name: Vertigo paradoxa
Common Name:
Mystery Vertigo

Vertigo paradoxa

    Vertigo paradoxa
Sterki, 1900 Pradox Vertigo

Eukarya: Vertigo paradoxa is under the Domain Eukarya because it contains a true nucleus along with membrane bound organelles (Encyclopedia of Life, 2011).
Animalia: This organism is part of the Kingdom Animalia because it is multicellular, heterotrophic, and ingests food and digests it in an internal cavity. Vertigo paradoxa is also placed in the Kingdom Animalia because its cells lack rigid cell walls and the cells are organized into tissues (Encyclopedia of Life, 2011).
   Mollusca: Vertigo paradoxa is classified under the phylum Mollusca because it has a soft body, a radula, and mantle which are distinguishing characteristics of this phylum. This organism is also bilaterally symmetrical and triploblastic (Martin, 2000).
   Gastropoda: This organism is classified under the class Gastropoda because it possesses a muscular foot on the ventral side of its body used for locomotion. This organism also goes through the process of torsion, a 180° twist of its visceral mass (Martin, 2000).
   Stylommatophora: The order of this organism is Stylommatophora because it has eyes found on the tip of the taller pair of their two retractile tentacles (Martin, 2000).
   Pupillidae: Vertigo paradoxa is classified under the family Pupillidae based on the arrangement of tiny lamellae, which are tooth like structures, about the aperture of the shell (Martin, 2000).
   Vertigo: The genus of this organisms is Vertigo. Members of this genus are characterized by having four to six lemallae that protrude into the aperture. Their shell is oblong in shape and usually translucent brown in color (Pearce et al., 2004).
   Vertigo paradoxa: This particular species has a cinnamon-colored, and "beehive-shaped" shell (Sterki, 2007). The aperture, the main opening of the shell, has four lamellae, or "teeth" (Sterki, 2007). A snail of this species has a lower palatal lamella set deeper in the aperture than the upper lamella above it. A basal lamella, bottom of the aperture, is often absent (Pilsbry 1948 in Anderson 2004).


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