142 



S. contortu plicata, S. filograna, S. quailrangularis, S. arenaria, 



' plicaria, ' vormicella, ' minima, ' filograna, 



' glomerata, ' filaria, ' cchinata, ' rosea, 



' decussata, ' pellucida, ' sulcata, ' fuscata. 



' protensa, 



Vermilia. Tube testaceous, cylindrical, gradually lessening to the pos- 

 terior end, more or less twisted, and fixed at the base to marine substances. 

 Aperture round, the margin armed with from one to three teeth. 



V. rostrata, V. bicarinata, V. subcrenata, V. scabra, 



' triquetra, ' eruca, ' plicifcra, ' tamiata. 



Galeolaria. Tubes testaceous, very numerous, cylindrical, rather an- 

 gular, raised, wavy, crowded and matted together, fixed at the base, the 

 upper end open. Aperture orbicular; the margin terminating in a projecting 

 point. Operculum orbicular, galeiform, the upper part armed with from five 

 to nine testaceous valves, which are fixed to its margin; the middle one linear, 

 truncate, and larger than the others. 



G. cajspitosa, G. elongata. 



Magilus. The base of the shell turned into a short, oval, snail-like spire; 

 the last four whorls contiguous, convex; the last larger than the others, and 

 lengthening into an erect, wavy and elongated tube. Tube convex above, 

 carinated beneath, plaited and rather depressed at the sides; the plaits lamel- 

 latcd, crowded, undulated, vertical, thicker on one side of the tube than on 

 the other. 



M. antiquus, M. vulgaris, M. anatinus. 



