Roa$m4m$l0r, lamographie, N, F, XX. 
Taf, 56fK 
2h: 
2876 
IST? 
2890 
1 
2877 
2878 
2879 
2880 
2882 
, 7/ 9Si7^R0 Dr hlmci West. — 288i- Dr, 
2876. 77. Dreissena poUj.,orpha Palla... ' f ^^/^^ J;,,,, j^,,,rd. 
