. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 116. Giganto- B, X5, from Neumann.). o Fig. 117. Development of spiny-headed worm of rats and mice, Hormorhyn- chus (or Echinorhynchus) moniliformis. A, proboscis, X 50; B, larva from cock- roach, x23; C, egg, X 150. (After Grassi and Calandruccio.) worm is a httle over three inches in length, the male about half this size. A species of cockroach serves as an intermediate host. Grassi and Calandruccio found by experimentation that the larvEe in cockroaches (Fig. 117B) would develop apparently equal

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. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 116. Giganto- B, X5, from Neumann.). o Fig. 117. Development of spiny-headed worm of rats and mice, Hormorhyn- chus (or Echinorhynchus) moniliformis. A, proboscis, X 50; B, larva from cock- roach, x23; C, egg, X 150. (After Grassi and Calandruccio.) worm is a httle over three inches in length, the male about half this size. A species of cockroach serves as an intermediate host. Grassi and Calandruccio found by experimentation that the larvEe in cockroaches (Fig. 117B) would develop apparently equally well in white rats and in man. An alUed species, H. clarki, has. 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 Chandler, Asa Crawford, 1891-. New York, J. Wiley

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