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IV.—Note on a Fossil Crab and a Group of Balani Discovered in Concretions on the Beach at Ormara Headland, Mekran Coast

  • Henry Woodward

Having been desired by my friend Miss Caroline Birley to examine two Crustaceans in nodules from the Mekran Coast— part of a much larger series, mostly enclosing fossil shells, described by Mr. R. B. Newton, F.G.S. (see ante, pp. 293–303)—I gladly comply with the request to add a note thereon to his paper.

The first concretion, when broken open, displays the dorsal aspect in impression and counterpart of a small crab, 5½ cm. broad by 3 cm. deep, having one long, slender, forcipated chela, imperfectly preserved, measuring nearly 5 cm. in length; and part of one of the fifth posterior pair of feet, adapted for swimming, showing it to have been near to the family Portunidæ, to which our common shore-crabs of the genus Portunus belong. None of these, however, can be satisfactorily compared with the fossil crab from Ormara, which is certainly referable to another genus.

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page 305 note 1 See Memoirs Geol. Surv. India, Palæontologia Indica: “On some Tertiary Crabs from Sind and Kutch” (1871), p. 3.

page 306 note 1 In his “Histoire des Crustacés Podophthalmaires Fossiles,” tom. i, 1861–1865, pp. 100–118, pls. iii–vii: Ann. Sci. nat., 4e ser., Zool., t. xiv.

page 306 note 2 Neptunus granulatus, A. M.-Edw., is recorded in a list of fossils as occurring in the Miocene of Sinai. See Max Blanckenhorn, “Neues zur Geologie und Paläontologie Ægyptens,” iii, Das Miocän: Zeitschr. Deutsch. Geol. Ges., 1901.

page 308 note 1 Crustacea, by W. de Haan, 1850, Leyden, 4to, with 70 plates.

page 308 note 2 Dana, J. D.: “Classification and Distribution of Crustacea,” 4to, 1853, p. 1424. Fam. IV, Portunidæ. 1, Lupinæ. Genera: Scylla, De Haan;Lupa, Lh.; Amphitrite, De Haan; etc.

page 308 note 3 Milne-Edwards, A., Hist. Crust. Podoph. Foss., 18611865, tome i, p. 100, gives genus Neptunus (synonymy: Cancer, pars, Linné; Portunus, Fabr.; Lupa, pars, Leach; etc.). Neptunus, Pontus. et Amphitrite, pars, De Haan; Lupa et Amphitrite, pars, Dana: Expl. Exped. Crust.

page 308 note 4 See Mr. Newton's remarks ante, pp. 296 and 300.

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Geological Magazine
  • ISSN: 0016-7568
  • EISSN: 1469-5081
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