Laevapex fuscus, ventral view. The tan mass is the digestive gland. Although the ancylids are pulmonates and have a lung, they also have a pseudobranch (false gill, which is a secondary outgrowth of skin, not a true molluscan ctenidium) to aid in respiration. The triangular, lobulated pseudobranch is clearly evident in this view.
Life Stages And Gender
John B. Burch (photographer; copyright holder), Mollusk Division, Museum of Zoology, University of Michigan-Ann Arbor
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Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2016. The Animal Diversity Web (online). Accessed at http://animaldiversity.org.
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