MULTIVALVES. — 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-geese, 

 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— ^corw Shell or Barnacle. 



Division I. — Affixed at the base to other substances- 

 Family 1. — Sessile, 

 *Balanus — Common Barnacle. Spinosa — Spinous. 

 *Balanoides — Small striated. Violacea — Violet. 

 Tintinnabukun — Bell-shaped. Crispata — Rugged. 

 *Scotica — Scottish. * Verruca — Wart-shaped. 



*Costata — Ribbed. *Rugosa-^ Wrinkled. 



*Conoides — Conic. *Punctatus — Punctured. 



Palmipes — Palmated. Radiata — Raxjed. 



Minor — Flesh-coloured. Cariosa — Ridged. 



Angustata — Narrow-mouthed. Psittacus — Parrot- beaked. 

 *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- valced. 



Family 3. — Having a porous base. 

 Porosus — Porous. Purpurascens — Purple. 



