Proceedings of The Academy of Natural Sciences (Vol. 115, 1963)
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actually adult Aegista Amastra anal ANSP Antillean Antilles appear atrocinctus Bahamas Baker basal base birds Bond caudal Cerion Cited fig Clausilia closely collected complex cores Cuba cyperinus developed differences dorsal Drymaeus edge Eulota examined females Figure fishes fused Garrett genera genus Grand Greater haemal Helix Hemiphaedusa hybrids indicated Islands July Kaliella known lateral length less Lesser male marked material Michigan natural North America observed occur origin pedicellatus pelius placed plants Plate Pleistocene population posterior precaudal Present Distribution probably Proc processes pterygiophores race range record region represented rubricosus scales Schizothrix Scirpus Second seed Sept set of dimensions sheaths shelf Shell South southern species specimens spines structure taken Text-figs TOM pl Torre trichomes Type United Urocoptis ventral vertebrae West