THE CALIFORNIA CONE. 55 



though it may occasionally be found covered with 

 a hairy epidermis. Living shells are rare, but dead 

 ones may frequently be found, particularly on the 

 southern coasts. 



There is a little black shell named Mitromorpha 

 Jilosa, Cpr., Mi-tro-mor'-fa fil-o'-sa, and this name 

 tells us that it has the form of the Miter Shells, and 

 that its surface is threaded. Please look back to Fig. 

 22 and you will find its shape, pointed at both ends 

 and largest in the middle ; and if you examine it with 

 a lens you will see that it is distinctly marked by 

 many spiral lines. Its length is only a quarter of an 

 inch. 



Mitromorpha aspe.rsa, Cpr., as-per'-sa, is even 

 smaller than the above, but it has a brownish surface 

 marked with a very distinct, sieve-like network of 

 fine lines. 



Mangelia striosa, C. B. Adams, Man-je'-li-a stri-o'- 

 sa, is a rare southern species with less sculpture than 

 the next, but otherwise resembling that shell, which 

 is known as Mangelia merita, Gld., mer'-i-ta, and 

 which is shown in Fig. 37. 



The whorls are six in number, the aperture 

 long, and the surface of the shell is marked by 

 high cross ridges and fine spiral lines. Notice 

 the notch in the outer lip where it joins the 

 body whorl. Color, white ; length, from one- 

 Pi 37 fourth to one-half of an inch. 



Mangelia angulata, Cpr., an-gu-la'-ta, is 

 similar to the last, but is of a brown color, with broad 

 and angular whorls. 



Three larger shells next present themselves for our 

 examination. Each of them is slender and spindle- 

 shaped, and each has a notch in the outer lip. 



