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Contents: Darwin’s investigations of carnivorous aquatic plants of the genus “Utricularia”: misconception, contribution, and controversy; Notes on the molluscan paleoecology of the Pinecrest Beds at Sarasota, Florida with the description of “Pyruella,” a stratigraphically important new genus (Gastropoda: Melongenidae); Vertebral formulae for type specimens of eels (Pisces: Anguilliformes); Biochemically detected sympatry of two water frog species: two different cases in the Adriatic Balkans (Amphibia, Ranidae); The Tanypodinae (Diptera: Chironomidae) of Australia II; Three new genera and two new species of deepwater western Atlantic snake-eels (Pisces: Ophichthidae); Some new “Procladius” (Chironomidae: Tanypodinae) species form Colombia; “Monopenchelys,” a new eel genus, and redescription of the type species, “Uropterygius acutus” Parr (Pisces: Muraenidae); “Naelotanypus viridis,” a new genus and species of Coelotanypodini (Diptera; Chrionomidae: Tanypodinae) from Colombia; “Corydoras boehlkei,” a new catfish from the Rio Caura system in Venezuela (Pisces, Siluriformes, Callichthyidae); “Spurwinkia”: morphology, systematics, and ecology of a new genus of North American marshland Hydrobiidae (Mollusca: Gastropoda); The range and co-occurrence of the shiners “Notropis analostanus” and “N. spilopterus” in southeastern Pennsylvania. Illus.
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