File:Aquatic life (1917-1918) (19560384499).jpg

Title: Aquatic life
Identifier: aquaticlife319171918baus (find matches)
Year: 1917-1918 (1910s)
Authors: Bausman, Joseph E
Subjects: Aquariums; Fish culture
Publisher: Philadelphia : J. E. Bausman
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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Text Appearing Before Image:
CoretKra: A Winter Fish Food GEORGE HEMSING
Text Appearing After Image:
Tne Nets ShovJed a I ellowish Mass of Corethra The value of live food for aquarium fishes cannot be overestimated, which fact is clearly shown by the numerous articles appearing in these columns con- cerning the propagation of Daphne for the purpose. More recently "Enchytrae," or white-worms, have entered the field, and I read with interest the article by Mr. C. J. Heede, Aquatic Life, Decem- ber. 1916 , page 43. His statement re- garding their use as a food for aquar- ium fishes, "especially during the winter months when Daphne is scarce and un- obtainable," leads me to ask: Why not feed Corethraf So little has been said about this particular larva, well-known and used with success by most of the members of the Milwaukee Society, that I often wonder wdiether these "subma- rines" lurk only in waters adjacent to our fair city. This, of course, we know is not the case, for we read much about the gathering of Daphne, and while so engaged, others mvist surely be getting Corethra, as they occur in ponds of the same nature. To the uninitiated a word about larval Corethra may not be amiss. It is a long, narrow creature of extraordinary trans- parency, resembling glass. In fact, thou- sands may be in the pond under exami- nation, large numbers practically on the surface, and yet they can hardly be seen. They are known as "phantom larvae," a name little to be wondered at, for no sooner is one noticed than it as mysteri- ously vanishes, only to reappear the very next moment possibly half an inch from

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