GT BARRIER REEF Mollusca Planarians Flat-worm Blue-spotted Octopus Sea-hare 1893
SKU
'Chromo Plate XIII; Great Barrier Reef Mollusca and Planarians; Fig. 1. Flat-worm or Planarian, Pseudoceros Kentii, n.sp., von Graff (infra). Life size and colour; Fig. 2. Flat-worm or Planarian, Pseudoceros dimidiatus, n.sp., von Graff (infra). Life size and colour; Fig. 3. Blue-spotted Octopus, Octopus pictus (infra). Life size and colour; Fig. 4. Sea-hare, Aplysia sp. Life size and colour; Fig. 5. Flat-worm or Planarian, Prostheceraeus flavomaculatus, n.sp., von Graff (infra). Life size and colour; Fig. 6. Nudibranchiate Mollusc, Doris sp. Life size and colour; Fig. 7. Nudibranchiate Mollusc, Doris sp. Life size and colour; Fig. 8. Nudibranchiate Mollusc. ? gen. ? sp. Life size and colour; Fig. 9. Nudibranchiate Mollusc, Ancula sp. Life size and colour; Fig. 10. Group of "Frilled" or "Furbelow" Clams, Tridacna compressa, p. 12. Arranged to show only the gaping valves, and the diversified hues of the brilliantly-tinted mantle folds; natural size; The author is indebted to Professor G. B. Howes for much assistance in the identification of the organisms depicted on the upper portion of this plate. The brilliant coloured Planarians represented by Figs. Nos. 1, 2, 5, proved, on reference, through Professor Howes, to professor Ludwig von Graff of Graz (the recognised authority on this group), to be in all instances new species, the author's thanks are here tendered for the names bestowed. Nos. 1 and 5 were collected by the author crawling among growing Madreporae in the Albany Pass and at Thursday Island respectively, and No. 2, under similar conditions, in the vicinity of the Palm Islands; The remaining most notable species is the blue-spotted Octopus, delineated by Fig. 3. This has been identified for the author, through Professor Howes, with the Octopus pictus of Brock, of which Mr. W. E. Hoyle has described a variety, under the title of O. pictus var. fasciatus, in his monograph on the Challenger Cephalopoda. The illustration here given is of interest, since it represents the first occasion on which the natural colours of this species have been recorded. As originally described by Dr. Brock (Zeitschrift fur Wissenschaftliche Zoologie, Bd. 36, 1882), the animal (described from a spirit-preserved specimen) was said to be yellowish, with blackish-brown spots. In life, these spots are suffused with glowing shades of the richest ultramarine-blue, each exhibiting for the most part a lighter central area and a darker annular border. The species was collected by the author towards the southern limits of the Barrier district, and on the Victorian coast-line'
Size 28 x 21 cm | 11.0 x 8.5 inches
Date Published: 1893
Type: Antique colour print
Author: Anonymous
Publication: The Great Barrier Reef of Australia
Condition: Good |
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