MULTIVALVES LEPAS. 9 



Other bodies or substances by the base, or lower 

 part of the shell ; but these are attached by a peduncle 

 or stem, which proceeds from the base of the shell to 

 the substance which sustains it. 



The stems differ exceedingly in character and sub- 

 stance; they sometimes resemble a smooth, film- 

 like tube, of a fine texture, not unfrequently tinged 

 with bright red or orange; they are also often of a dark 

 or bluish-brown color, the texture much coarser, and 

 wrinkled, or granulated with little warts. 



The peculiar structure of these species has caused 

 them to be compared to the crocus, to which in ap- 

 pearance they bear a considerable resemblance. 



The above species characterize the second division, 

 which is subdivided into three families, distinguished 

 by the number and position of the valves. The first 

 consists of those species M'hich have five valves, and a 

 wreath of smaller ones round the base, as in the L. pol- 

 licipes. In the second family the valves are conti- 

 guous, as in the L. anserifera and L. anatifera, which 

 are almost invariably composed of five valves; 

 they are also supplied with beautiful feathery tenta- 

 cula of a brown color, and elegantly curled. Jn the 

 third family the valves are minute and not con- 

 tiguous. 



Family 1. — Having more than five valves, and a wreath of smaller 

 ones round the base, 



Seientific Name- Locality. Common Name. 



Mitella A mboytia& East Indies- Mitred Barnacle 



Scalpellum Spain, &r. Knife-like • • do • • 



Pollicipes France and Spain Cornut opia <lo • • 



