14 



enus II. 



LEPAS: 



SHELL WITH MANY UNEQUAL VALVES FIXED BY 

 THE BASE. 



Subdivisions. 



A. Shells sessile : 



* with the Base solid : 



# * with radiated Cells at the Base. 



#*# yv\t\\ the Base porous. 



**** with a Cup-like Appendage at the Base 



*###* Tubular and Truncated at both Ends. 



B. Shells elevated on a fleshy Peduncle: 



* with more than five Valves, and a Wreath 



of smaller ones round the Base. 

 ** with five contiguous Valves. 

 *** with minute distant Valves placed on a 

 fleshy extension of the Peduncle. 



A. SHELLS SESSILE : 



A* with the Base Solid. 



balanus. 1. Shell conical, truncated, with the 

 valves longitudinally grooved, and the inter- 

 stices transversely striated. 



Lepas balanus. Linnceiis Syst. Nat. p. 1107. Pennant's 

 Zool. iv. p. 72. t. 37. f. 4. Born. Mus. p. 8. t. 1. f. 4. 

 Chemnitz, viii. p. 301. t. 97. f. 820. Schroeter Einl.in. 

 p. 511. Gmelin, p. 3207. Donovan, i. t. 30. f. 1. Ma- 



