EXPLANATION OF PLATES, 
AND SYSTEMATIC VIEW OF THE 
LAMARCKIAN ARRANGEMENT. 
Class, ANNELIDES. 
Order, SEDENTARIA. 
Fam. Maldania. 
FIG. 
1 Siliquaria anguina. Agathirses, Montf. 
Fam. Dorsalia. 
Dentalium octogonum. 
Pharetrium fragile, with the outer tube broken. 
© bo 
Fam. Serpulacea. 
4 Serpula bicarinata. 
5, Spirorbis nautiloides, on sea-weed. 
6 Galeolaria decumbens, on a Conia. 
7 Vermilia triquetra. 
8 Spiroglyphus, on a portion of Patella. 
8 Magilus antiquus, old shell (from Guerin.) 
10 The same, in a young state. 
11 Leptoconchus striatus. 
12 Stylifer astericola. 
13 The same, in a portion of Star-fish. 
