An Account of the Crustacea of Norway

An Account of the Crustacea of Norway

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ...frontal part narrowly produced. The 4 anterior segments of mesosome transversely excavated dorsally, with the lateral parts obtuse; the 3 posterior segments densely crowded together, anil very convex above. Caudal segment comparatively large, oblong oval. Superior antennae with the basal joint very large and massive, flagellum multiarticulate and much longer in male than in female. Inferior antennae with the 2 outer joints of the peduncle greatly elongated. Mandibles without any molar expansion, cutting edge but slightly dentated, palp well developed, with the terminal joint lamellar, incurved. Maxillipeds pronouncedly laminar, with the antepenultimate joint of the palp acutely produced inside, the 2 outer joints narrow and simple. Tin! first 2 pairs of legs of essentially the same structure, though somewhat different in size; the 2 succeeding pairs extremely slender and elongated, with the first 3 joints short and thick. Natatory legs of uniform structure, and rather slender, with the carpal and propodal joints foliaceous and densely edged with plumose setae, dactylus wanting. Female operculum navicular, male operculum transformed in the usual manner, digitiform process of the copulative appendages terminating in a long and slender seta. Uropoda simple, filiform, biarticulate. Remarks.--This genus was established in the year 1860 by my late father, to include a very remarkable Isopod, found by him at Christiansund, west coast of Norway. The generic name refers to a certain resemblance, in outward appearance, to the genus Manna of Kriiyer. It forms the type of the family Munmrpsulce, being the first genus recorded, and it is distinguished pretty well from the other genera, both by its outward appearance, and by the structure of more

Product details

  • Paperback | 112 pages
  • 189 x 246 x 6mm | 213g
  • United States
  • English
  • black & white illustrations
  • 1236953878
  • 9781236953872