. Fresh-water biology. Freshwater biology. —CO Fig. 863. Mule oi Rhinops nlrea, Hudson, showing presence of the ahmentary canal, co, cop- uiatory organ; mx, mastax; 0, esophagus; sp, spermarium; St, stomach. X 400. (After Rousselet.). Fig. 86^. Male of Copeus packyurus Gosse, showing absence of alimentary canal, br, brain; C(7, copulatory organ; 5^, sperma- rium. X 260. (After Dixon-Nuttall.) account of the other rotifers, they will be grouped about the No- tommatidae in the way which appears to be called for by the facts.^ ^ This follows mainly Wesenberg-Lund (1899), who has developed a class
. Fresh-water biology. Freshwater biology. —CO Fig. 863. Mule oi Rhinops nlrea, Hudson, showing presence of the ahmentary canal, co, cop- uiatory organ; mx, mastax; 0, esophagus; sp, spermarium; St, stomach. X 400. (After Rousselet.). Fig. 86^. Male of Copeus packyurus Gosse, showing absence of alimentary canal, br, brain; C(7, copulatory organ; 5^, sperma- rium. X 260. (After Dixon-Nuttall.) account of the other rotifers, they will be grouped about the No- tommatidae in the way which appears to be called for by the facts.^ ^ This follows mainly Wesenberg-Lund (1899), who has developed a classification of the Rotifera based on their origin from Notommatoid forms. While this classifi- cation has not thus far been commonly employed, the same can be said of any other classification that has been proposed. The writer is convinced that the classification given by Wesenberg-Lund is the only really natural one and that its use is a great aid to an understanding of the Rotifera; he has therefore employed it. It should be noted, however, that the arrangement here given differs in many details from that of Wesenberg-Lund, as the advance of knowledge, or the writer's own experience, seems to require. No scheme of classification can be completely fixed until knowledge of the organisms to be classified is infinitely more complete than is the present knowledge of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
Size: 1216px × 2054px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
