PLATE 8. 



— Aslacus astacus (Linne) . cf. Leipzig, Germany. M. C. Z., No. 3403. 



— Gonopod of tlie same. 



— Chela of the same. 



— Antennal scale of the same. 



— Anterior process of the epistoma of the same. 



— Profile of anterior end of rostrum of the same. 



— Pleura of the second and third abdominal segments of the same. 



— Aslacus paUipes ilalicus 'Fa.xon. cf. Sarno R., Pompeii, Italy, Juno 10, 1900. Type. U.S. 

 N. M., No. 28,638. 



— Gonojiod of the same. 



— Chela of the same. 



— Antennal scale of the same. 



— Anterior process of the epistoma of the same. 



— Profile of anterior end of rostrum of the same. 



— Pleura of the second and third abdominal segments of the same. 



— ^s(acus poffipcs Lereboullet. cf. Saone R., Lyons, France. M. C. Z., No. 3,372. 



— Gonopod of the same. 



— Cliela of the same. 



— Antennal scale of the same. 



— Anterior process of the epistoma of the same. 



— Profile of anterior end of rostrum of the same. 



— Pleura of the second and third abdominal segments of the same. 



