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The drawing of "the UKODKO or smaller Murray cray-fish" most nearly resembles ASTACUS QUINQUE-CARINATUS, but it is three or four times larger than any of the specimens of that species which we possess, and the figure does not shew any indications of the five keels on the front of the head. In wanting the keel on the thorax it agrees with an Australian species described by Mr.

Inhab. Van Diemen's Land. Mr. Madagascar appears to be the tropical confines of the genus. The Western Australia Cray-fish. ASTACUS QUINQUE-CARINATUS, t. 3. f. 3.

The drawing of "the UKODKO or smaller Murray cray-fish" most nearly resembles ASTACUS QUINQUE-CARINATUS, but it is three or four times larger than any of the specimens of that species which we possess, and the figure does not shew any indications of the five keels on the front of the head. In wanting the keel on the thorax it agrees with an Australian species described by Mr.

Inhab. Van Diemen's Land. Mr. Madagascar appears to be the tropical confines of the genus. The Western Australia Cray-fish. ASTACUS QUINQUE-CARINATUS, t. 3. f. 3.

C. The central caudal lobe continued or only slightly divided on the middle of each side; but it and all the lateral lobes are thin and flexible at the hinder parts, as ASTACUS QUINQUE-CARINATUS, and A. BICARINATUS of Australia, and A. CHILIENSIS of Chili.

C. The central caudal lobe continued or only slightly divided on the middle of each side; but it and all the lateral lobes are thin and flexible at the hinder parts, as ASTACUS QUINQUE-CARINATUS, and A. BICARINATUS of Australia, and A. CHILIENSIS of Chili.