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Astacus astacus (Linne). Male. Leipzig, Germany
1a. Gonopod of the same
1b. Chela of the same
1c. Antennal scale of the same
1d. Anterior process of the spistoma of the same
1e. Profile of anterior end of rostrum of the same
1f. Astacus pallipes italicus Faxon. Male. Sarno R., Pompeii, Italy, June 10, 1900
2a. Gonopod of the same
2b. Chela of the same
2c. Antennal scale of the same
2d. Anterior process of the epistoma of the same
2e. Profile of anterior end of rostrum of the same
2f. Pleura of the second and third abdominal segments of the same
3. Astacus pallipes Lereboullet. Male. Saone R., Lyons, France
3a. Gonopod of the same
3b. Chela of the same
3c. Antennal scale of the same
3d. Anterior process of the epistoma of the same
3e. Profile of anterior end of rostrom of the same
3f. Pleura of the second and third abdominal segments of the same

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