Stanford University Publications; University Series. Biological Sciences Volume 2

Stanford University Publications; University Series. Biological Sciences Volume 2

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 edition. Excerpt: ...of locality (Molteno Institute). Notes.--This species is so very similar to H. ventricosus that comparative notes only will be given. It differs in the relatively much larger head and in having the lateral margins of the hind head perhaps less swollen than in ventricosus. The hind head is relatively somewhat longer than in ventricosus, although the character utilized by Ewing, "temporal region of head about as broad as long," appears to the writer to be illusory. The sternal plate of the thorax is definitely larger than in ventricosus and of a somewhat hexagonal form instead of being transverse (Fig. 205 B). The abdomen is oval rather than pyriform and the paratergites (Fig. 205 E) are larger and better developed than in ventricosus. It is noticeably larger than ventricosus, specimens from the type host attaining 1.8 mm. for the female and 1.5 mm. for the male, while those from Lepus glacialis attain 2 mm. for the female. The differences between H. ventricosus and H. setoni are thus slight, but they appear to be significant and the recognition of //. setoni appears to be justified. Genus LINOGNATHUS Enderlein 1904. Trichaulus Enderlein, Zoologischer Anseiger, 28: 139, 141. (Preoccupied.) 1905. Linognathus Enderlein, ibid., 29:194. 1908. Linognathus, Dalla Torre, "Anoplura," Wytsman's Genera Insectorum, p. 12. 1909. Haematopinus (Linognathus), Neumann, Archives de Parasitologie, 13: 529 530. 1910. Linognathus, Mjoberg, Arkiv for Zoologi, 6: 156. 1913. Linognathus, Patton and Cragg, Textbook of Medical Entomology, p. 544. 1915. Linognathus, Kellogg and Ferris, Anoplura and Mallophaga of North Ameri can Mammals, Stanford University Publications, University Series, p. 10. 1916. Linognathus, Ferris, "Catalogue and more

Product details

  • Paperback | 168 pages
  • 189 x 246 x 9mm | 313g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236496337
  • 9781236496331