GENUS XXVI. MUREX. 119 



the right, or to the left, no provision is made tor those witlKwt 

 a canal, and which liave only a hollow that cannot be said to 

 bend either way, described by Linneeus as Ecaudati : tlie con- 

 sequence is, that tliese are divided between the Mnrex and the 

 Bucciniim, tenchng- to perplex both. Also the tapering shells, 

 which are divided among all the three genera, seem to have 

 so great an affinity to each other, that it would render each 

 genus much more distinct, to take these out and form tt>em 

 into one or two new genera, as has been done by Lamarck. 



There is not much known of the animals inhabitino- these 

 shells ; it is supposed they differ but little from those of the 

 Buccinum ; there are a few of them represented in pi. 11, but 

 information on this subject is much wanted. 



Linnaeus makes six divisions in this genus : first, Spinosi ; 

 second, Frcndosi; third, Varicosi; fourth, Ecaudati; fifth, 

 Cavdigeri; and sixth, Turriti. He describes only 61 species, 

 Gmelin has added 102, mid Dr. Turton 20. Total, 183. 



Lamarck divides this genus into five, as follow : 

 MuREX. Shell oval or oblong, with a channel at the base, 

 having always on the outside some longitudinal ridges ; 

 generally rough with tubercles or spines, or fringed (see 

 Murex Haustellum, f. 88). 

 Fusus. Shell somewhat spindle-shaped, swelling in the middle 

 or lower part, with a channel at the base ; the spire 

 lengthened, and destitute of sutures or ridges on the out- 

 side ; the pillar smooth, the right lip without a notch (see 

 Murex Coins, f. 89). 



