PLATE III. 



FIG. 1. Venus mercenaria Linn., bored by Cliona sulphured Desor, and with tubes of 

 Hydroides dianthus Verr. attached. 2. Mytilus hamatus Say. 3. Cumingia tellinoides 

 Conrad. 4. Nassa obsoleta Say. 5. Sipho stimpsoni Mbrch., var. brevis Verr. 6. 

 Balanus porcatus DaCosta. 7. Neopanope texana, sayi Smith. 8. Eupanopeus herbstii 

 Milne Edwards. 9. Callinectes sapidus Rathbun. 



