Studies on Crustacea of the Red Sea, with Notes Regarding Other Seas; Part I. Podophthalmata and Edriophthalmata (Cumacea)

Studies on Crustacea of the Red Sea, with Notes Regarding Other Seas; Part I. Podophthalmata and Edriophthalmata (Cumacea)

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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. 1875 edition. Excerpt: ...and in Nep. pelagicus (Dehaan), they are shorter than the cephalothorax. The anterior edge of the meropodite also has a variable number of teeth. One male. Distribution: Red Sea; Persian Gulf; Indian Ocean; Java; Borneo; the Moluccas; the Philippines; Sea of China; Sea of Japan; Port Jackson; New Caledonia; Samarang. GENUS XIPHONECTES ALPH. M. Eow. This genus differs from Neptunus by its four frontal spines, since the anterior part of the superciliar region does not form the spines, which in Neptunus are considered frontal spines. The lateral edge has up to nine small spines, of which some may be rudimentary or lacking. The extraorbital and the last spine are horizontal and are large and well developed. The antennules have a horizontal position. The basal joint of the antenna is short and fills the orbital fissure; the other joints lie in the ocular cavity. The second maxilliped reaches only the anterior edge of the oral frame. The epistome has no outgrowth. The endostome bears a crest. The frontal edge is slightly raised and bears four rounded spines of which the median is much smaller than the lateral ones. The superior orbital edge has two small incisions and the anterior end of the superciliar area does not form spines. The anterolateral edge bears eight spines on the right side, of which four are rudimentary and the sixth is small; on the left side there are nine spines, and the fourth and sixth are rudimentary. The cephalothorax has an hexagonal shape. The gastric, branchial, and cardiac areas are protuberant and do not show the subdivisions noted by Dana. Only the median part of the epistome is developed. The second maxillipeds correspond to Dana's illustration. The anterior edge of the oral frame is prominent and has fairly large...show more

Product details

  • Paperback | 54 pages
  • 189 x 246 x 3mm | 113g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236936647
  • 9781236936646