Zoological Society bulletin . , Director of the Path. Charles H. Townsend, Director of the Aquarium. La Farge & Morris, Architects. H. De B. Parsons, Consulting Engineer. ©{titers of tfje Zoological $arfe William T. Hornaday, Director. C. William Beeije, H. W. Merkel, S. Crandall, W. Reid Blair, George A. Dorn. H. R. Mitchell,Raymond L. Ditm \rs. R. Sanborn,G. M. Beerbower, ©fftters of tfje aquarium Charles H. Townsend, Director. Raymond C. Osburn, Assistant. Washington I. DeNyse, Robert Sutcliffe. ZOOLOGICAL SOCIETY BULLETIN AQUARIUM NUMBERCONTENTS FOR NOVEMBER ( DEC 13 1920 i V /
Zoological Society bulletin . , Director of the Path. Charles H. Townsend, Director of the Aquarium. La Farge & Morris, Architects. H. De B. Parsons, Consulting Engineer. ©{titers of tfje Zoological $arfe William T. Hornaday, Director. C. William Beeije, H. W. Merkel, S. Crandall, W. Reid Blair, George A. Dorn. H. R. Mitchell,Raymond L. Ditm \rs. R. Sanborn,G. M. Beerbower, ©fftters of tfje aquarium Charles H. Townsend, Director. Raymond C. Osburn, Assistant. Washington I. DeNyse, Robert Sutcliffe. ZOOLOGICAL SOCIETY BULLETIN AQUARIUM NUMBERCONTENTS FOR NOVEMBER ( DEC 13 1920 i V / Prepared and Edited by Dr. Raymond C. Osburn PAGE Orange Filefishes Frontispiece The Crayfish 921 American Fisheries Society 928 Species of Fishes in the World 928 Obituary 928 New Members 929 The Garden Pool and the Mosquito 929 Fishes That Produce Living Young 930 A Fastidious Spider-Crab 931 Swordfishing Industry 931 The Big Groupers 932 Our Black-Spotted Trout 932 The Orange Filefish 933 Aquarium Notes 934. ZOOLOGICAL SOCIETYBULLETIN Published by the New York Zoological Society Vol. XVI NOVEMBER 1912 Number 54 THE CRAYFISH NONE of the inhabitants of fresh waterare better known to the casual observerand few have been the subject of morestudy by naturalists and scientists than the cray-fishes. These are popularly known by a varietyof names such as crawfish, erawdad, cray, lob-ster, crab, etc. The origin of the word cray-fish is interesting as an illustration of thechanges which words sometimes undergo duringthe evolution of languages. Apparently fromthe Old High German word Krebis there havebeen derived the modern German word Krebs,the Old French crevice from which has comethe modern French ecrevisse, and the OldEnglish crevis or creves, which has beencorrupted into crayfish and still further intocrawfish. Every country lad knowscrayfishes may be found, andwith their propensity for stealing bait when heis fishing for the far more desirable suckers,catfish and shiners; and w
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