MULT1 VALVES. LEPAS. 31 



tiful feathery tentacula of a brown colour, and elegant- 

 ly curled. From this circumstance, probably, they were 

 supposed to be the origin of the barnacle or brent-geesej 

 and are therefore commonly known by the name of Goose- 

 shells or Duck-barnacles. The Lepas anserifera is some- 

 times found in a fossil state. 



The Indian, American, Atlantic, and Arctic oceans, 

 alike provide a habitat for the species of this genus ; and 

 no less than thirteen of them are to be occasionally met 

 with on the British coasts. 



The Lepas, in all probability, derives its name from its 

 custom of adhering to crags of rocks, and other projections 

 in the sea. 



LEPAS Acorn Shell or Barnacle. 



DIVISION I. AFFIXED AT THE BASE TO OTHER SUBSTANCES. 

 FAMILY I.- Sessile. 



*Balanus Common Barnacle. Spinosa Spinous. 

 *Balanoides Small striated. Violacea Violet. 

 Tintinnabulum Bell-shaped. Crispata Rugged. 

 *Scotica Scottish. * Verruca Wart-shaped. 



*Costata Ribbed. *Rugosa Wrinkled. 



*Conoides Conic. *Punctatus Punctured. 



Palmipes Palmated. Radiata Rayed. 



Minor Flesh-coloured. CarSosa Ridged. 



Angustata Narrow-mouthed. Psittacus Parrot- leaked. 

 *Elongata Club-like. Hemispherica Hemispherical. 



Patellaris Limpet-like. Laevis Smooth. 



*Striatus Striated. 



FAMILY 2. Having radiated cells at their base. 

 Diadema Turban. Testudinaria Turtle. 



Balanaris Whale. Quinquevalvis Five-valved. 



FAMILY 3. Having a porous base. 

 Porosus Porous. Purpurascens Purple. 



