( ) 
COKRIGENDA. 
P. 33, after second line add Trigon schreineri, n, sp. 
P. 109, line 7, instead of " the Woodbush " read about 4 miles West of Woodbush 
village, at the top of a barren hill. 
PI. VII., figures 1 and 2, instead of " x §," correct to x |. 
figures 3 and 4, instead of " Nat. size," connect to x 2. 
P. 139, line 28, instead of Goryphella, Biifibranchialis" read Coryphella rufibrancliiaUs , 
line 29, instead of " Marionia, quadrilatera,^^ read Marionia quadrilatera. 
