Proceedings of The Academy of Natural Sciences (Vol. CVII, 1955) |
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Acad Academy addition adult alveoli American animals appears aspect Bolivia border bottom carina character closely collection Colombia color complex compressus condition considered cristatus Department depth developed differences distinct distribution dorsal eastern Ecuador Escambia examined extends eyes Family fastigium fauna feet female figured Florida frontal genus Hancock immature included individuals known Labyrinthus lacking Lake larger lateral length less locality lower male material measurements median Michigan Morse muscle Museum Natural Nomotettix North notes occur Park pattern penial penis Peru Peruvian Phila pigment Pilsbry PLATE Pleistocene Pleurodonte Polydontes posterior present Proc pronotal pronotum Puerto race range recorded represented retractor Río Curaray River salinity shell side single slightly South species specimens Station subgenus subspecies surface survey taken upper width wing Zimmer