28 MULTIVALVES. LEPAS. 



Aculeatus Prickly. Cimex Bug-like. 



*Fascicularis Banded. Asellus Millipede. 



Punctatus Dotted. Gigas Large. 



Ruber Red. Islandicus Icelandic. 



Albus White. *Marginatus Marginated. 



Cinereus Ash-coloured. *Laevis Smooth. 



Bicolor Variegated. Amiculatus Imbricated. 



Cerasinus Cherry-coloured. Tuberculatus Knobbed. 



Magellanicus Magellan. *Crinitus Hairy. 



Fuscus Brown. Thalassinus Sea-green. 



Granulatus Granulated. Hispidus Bristly. 



Piceus Pitchy. Porosus Porous. 



Minimus Mealy. Larvseformis Caterpillar. 



DIVISION III. Having a spinous margin. 



Spinosus Spiny. Spiniferus Thorny. 



LEPAS. ACOUN SHELL, OR BARNACLE. 



Animal a Triton: Shell affixed at the base, and consisting 

 of many unequal, erect valves. 



THE genus Lepas includes forty-four species, which, for 

 the most part, bear a strong resemblance to each other, at 

 least with regard to their general formation and outline. 



The most prominent feature of these shells is their being 

 (with few exceptions) of a more or less conical shape, which 

 is acquired by a number of valves placed perpendicularly 

 on a base, broad at the lower margin, and gradually taper- 

 ing towards the summit, which is closed by smaller valves, 

 placed horizontally, and serving as a lid or covering to the 

 animal within. 



The perpendicular valves are incapable of motion : the 

 horizontal, on the contrary, are moveable at the pleasure 



