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Fig.

PLATE IX.

1. Fenestella fossula Lonsdale, p. 89. 269., nat. size.

la. Magnified representation of a portion of a cast of the cellular surface, figured from a specimen in the collection of Mr.

Darwin.

2. Fenestella internata Lonsdale, p. 87. 89. 94, 95. 269., nat. size.

2a. Cellular surface magnified.

26. Magnified representation of the granular outer layer, and sharply fibrous or minutely tubular inner layer of the noncellular surface.

3. Fenestella ampla Lonsdale, p. 87. 94, 95. 268.

Cast of

cellular surface, nat. size, from a specimen belonging to Mr. Darwin.

3a. Non-cellular surface, nat. size.

36. Magnified representation of the fibrous or minutely tubular structure of the inner layer of an old portion of the coral, and of the dorsal terminations of the cells.

3c. Magnified representation of a cast of the cellular surface. 3d. Magnified side-view, showing the range of the cells, and the minutely tubular structure of the non-cellular portion.

4. Hemitrypa sexangula Lonsdale, p. 269., nat. size.

4a. Magnified view of a portion of the same, figured from a specimen belonging to Mr. Darwin.

PLATE X.

1. Allorisma curvatum Morris, p. 91. 270.
2. Pachydomus globosus Morris, p. 91. 272.

3. A young individual of the same.

4. This figure illustrates a small specimen supposed to belong to the same species, and exhibits the peculiar characters of the muscular impressions: it may, however, be only a young state of Pachydomus lævis.

PLATE XI.

1. Orthonota? costata Morris, p. 91. 273.

2. A cast of the same species, showing the impressions of the mantle and adductor muscles.

3. Pachydomus carinatus Morris, p. 91. 273.

4. A cast of the same, showing the muscular impressions.

Eurydesma cordata

PLATE XII.

, p. 91. 276.

The upper figure exhibits the small muscular impressions proceeding, from under the cardinal area, towards the adductor muscle. The two lower figures are the right and left valves of the same species, showing the dental characters, and the broad striated ligamental area.

a

PLATE XIII.

Fig.

1. Pecten limaformis Morris, p. 94. 277.
2, 3. Pterinea macroptera Morris, p. 96. 276.
4. Orthonota? compressa Morris, p. 96. 274.

[blocks in formation]

4a. b. c. Productus brachythærus G. Sow., p. 87. 91. 94. 284. The figures illustrate the external surface and the internal structure of the dorsal and ventral valves.

PLATE XV.

1. 1a. Spirifer Stokesii König, p. 283.

2. Spirifer (Terebratula?) crebristria Morris, p. 88. 279.

3.

Tasmaniensis Morris, 280.

1. Variety of the same, with unequal costæ; from Mr. Darwin's collection.

5. Spirifer subradiatus G. Sow., p. 94. 281.

This is presumed to be the species described by Mr. G. Sowerby (the original specimen not having been examined); it is a very variable species, and attains considerable size; the figures on Plate XVI. are considered to be varieties of the same species, intermediate forms having been observed between specimens having "indistinct costa" and those destitute of them.

PLATE XVI.

1. Spirifer subradiatus, from Illawara, p. 89. 96. 281. 2. A siliceous cast, from Van Diemen's Land, showing the spiral lamellæ, one of which is distorted from the natural position.

3. Internal cast of ventral valve.

4. Internal cast of dorsal valve.

PLATE XVII.

1. Spirifer vespertilio, G. Sow., p. 97. 282.

2. A siliceous cast of the same, with the spiral lamellæ visible along the hinge-line.

3. A short variety of the same, showing the cast of the imbricated costæ. This specimen is much compressed.

4, 5. Terebratula cymbaformis Morris, p. 87. 278.

6. Spirifer avicula G. Sow., showing the divided ribs towards the margin, p. 97. 282.

Fig.

PLATE XVIII.

1. Platyschisma oculus Morris, p. 89. 91. 286.

2.

rotundatum Morris, p. 89. 91. 286.

3. Turritella tricincta Morris, p. 88. 285.

4. Lettorina filosa J. Sow., p. 88. 285.

5. Pleurotomaria Strzeleckiana Morris, p. 89. 91. 287.

6.

subcancellata Morris, p. 91. 288.

7. Bellerophon micromphalus Morris, p. 288.

8. Theca lanceolata Morris, p. 91. 289.

9. Conularia levigata Morris, p. 87. 91. 290.

9a. Magnified view of the transverse ridges and lateral channel. 96. Transverse section of the same species.

10. Bairdia affinis Morris, p. 88. 291.

PLATE XIX.

1, 2, 3. Cypræa eximia G. Sow., p. 296.
4. Terebratula compta G. Sow., p. 292.
5. Bulimus Gunnii G. Sow., p. 298.
6. Helix Tasmaniensis G. Sow., p. 298.

All the figures have been carefully executed by Mr. J. de C. Sowerby, with the exception of those on Plates XII. and XIX., engraved by Mr. G. B. Sowerby, Jun.

PHYSICAL DESCRIPTION

OF

NEW SOUTH WALES,

&c.

SECTION I.

MARINE AND LAND SURVEYS.

INTRODUCTION.

*

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"IN 1788," says Lieutenant-Colonel Collins the evening of the 25th of January, Governor Phillips arrived in Port Jackson, and anchored off the mouth of the cove intended for the settlement. The spot chosen for this purpose was at the head of the cove, near a run of fresh water which stole silently through a very thick wood, the stillness of which had then, for the first time since the creation, been interrupted by the rude sound of the labourer's axe and the downfal of its ancient inhabitants; a stillness and tranquillity which from that day were to give place to the noise of labour, the confusion of camps and towns, and the busy hum of its new possessors.

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The whole of the party then present were assembled at the point where they had first landed, and on which a flag-staff had been purposely

*Collins's "Account of the English Colony of N. S. Wales.”

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