Projecting into these sounds and between the estuaries of rivers flowing into them are extensive tracts of swamp land - the best known of these is Dismal Swamp, which lies mostly in Virginia and is about 3 o m.
39 projecting from the branchial sub-pallial space.
In the western portion rises the massive range of the White Mountains (Aspra Vouna), directly overhanging the southern coast with spurs projecting towards the W.
Cephalic shield continuous with dorsal integument; no shell; ctenidium projecting from mantle cavity.
Mantle-border projecting; frontal veil reduced, and often covered by the anterior border of the mantle.