166 
SPECIFIC 
Specimen white, brownish towards the tip ; lon- 
gitudinally wrinkled and transversely rugose. 
Inhabits the Adriatic, Atlantic, and Indian Seas. 
Fig. 3. S. aquaria. 
Shell round, straight ; circumference of one 
extremity radiate ; disk furnished with cylindrical 
pores. 
Lister Conch. Tab. 548. Fig. 3. 
Specimen white, nearly smooth, gradually atte- 
nuated, smaller end open; larger one closed, convex. 
Inhabits India. 
Fig. 4. Teredo navalis. 
Shell thin, cylindrical, smooth. 
Humph. Mus. Tab. 41. Fig. F. G. 
Specimen white, flexuous, rather tapering. 
Fig. 5. Sab ELLA Chrysodon. 
Shell subcylindrical, papyraceous, formed of 
testaceous fragments. 
Martyn Conch. 1. Tab. 4. Fig. 29, 30. 
Specimen dirty yellow ; the particles of sand and 
shells adhere to a film, which is flexible when wet. 
