192 THE WEDGE-SHELL. 



The little southern Wedge-shell is shown in Fig. 



164. Its name is Donax Calif or iiicits^ Conr., Do'-nax 



^_^^^^-^=^ Cal-i-for^-ni-cus. It is short and stumpy, 



<^^^^2jk c^^t nearly square off at one end and 



^^^4=:^ tapering to a rounded edge at the other. 



Fig. 164. It varies much in color, sometimes being 



nearly white, while other specimens are striped with 



bright tints. Its surface is smooth, though marked 



with narrow radiations. The edge is finely crenula- 



ted. Its length is an inch or less. 



Donax flexiiosiis^ Gld., flex-u-o^-sus, likewise a 

 southern species, resembles the foregoing, but the 

 rear part of the shell is not cut off so obtusely. Shell 

 white, usually covered wdth a light brown epidermis. 

 There are dark colored spots on the interior. 



Cai'dmm quadriginai^iiun^ Conr., is a rare southern 

 species, resembling Fig. 153, but having about forty 

 delicate ribs. It sometimes grows to a great size. 



