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.
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.
39 projecting from the branchial sub-pallial space.
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.