Class VI. LEPAS. BARNACLE. 155 



Gm. Lin. 3213. Mont. Test. Br. Sup. 6. tab. 28. /. 5. is. polli- 



CIPES. 



* L. with an erect compressed shell, of many 

 smooth valves ; four of them larger and above 

 twenty smaller, placed on a short coriaceous 

 scaly stem ; length, including stem, about two 

 inches and an half. 



Mont, Test. Br. App. 164. 19 . membra. 



NACEA. 



* L. with a shell of five valves, connected by 

 broad membranes, and supported by a short 

 pedicle ; length half an inch ; breadth a quarter 

 of an inch. 



