MULTIVALVES LEPAS. 7 



merits or chambers, as in the L. diadema, or it is filled 

 up with tubular pores, as in the L. porosa. 



The species possessing these characters form the 

 first, second, and third families of the first division; 

 the fourth family is distinguished by having a cup- 

 like appendage at the base; and the fifth by the shell 

 being tubular and truncated at both ends. 



The Lepas derives its name from its custom of 

 adhering to rocks (XeVac)) and other projections in 

 the sea. 



This genus has also been called Balanus, from the 

 resemblance which some of the species bear to an 

 acorn (jSaXavoc). 



Division 1. — Affixed at the base to other substances. 



p A r MiLY -h — Sessile . 



Scientific Name, Locality. Common Name. 



Balanus Europe, &c. Acorn shell, com 



nion Barnacle • • 



Balanoides • Europe Smooth • • • do • • 



Tintiniiabulurn • • East and West Indies • • • Bell-shaped do ■ • 



Scolica Scotland Scottish ••• do • • 



Costata Wales Ribbed • • • do • • 



Conoides Weymouth Conic . . . . do • • 



Palmipes Atlantic Isles Palmated • • do • . 



Minor .... Indian Isles Flesh colored do- • 



Angustata Coast of Africa, &c. Narrow mouthed- 



Elongata Britain, &c. Club-like • do ■ • 



Patellaris Coast of Coromandel, &c. Limpet-like do • • 



Spinosa St. Helena Spinous • . do • • 



Violacea Indian Isles Violet • • • • do • • 



Crispata Rugged • • do • . 



\'^erruca North P-urope Wart formed do • • 



Ifujjosa South Coast of England- Wrinkled • do • • 



