MUREX. 743 



Murex attenuatus. Montagu Test. p. 266. t. 9- f. 6. J/a- 

 t07i and Rackety in Lin. Trans, viii. p. 143. 



Inhabits the coasts of the West of England. Montagu. 



Shell half an inch long, and one eighth broad, with eight whirls 

 regularly tapering to a very fine point, and destitute of striae j 

 colour yellowish white without markings, and it may be dis- 

 tinguished from M. costatus by its more slender form, larger 

 size, and more numerous whirls. 



NEBULA. 126. Shell turretecl, with longitudinal 

 ribs, and minutely reticulated ; beak short 

 and slightly bent. 



Murex Nebula. Montagu Test. p. 267. t. 15. f. 6. Ma- 

 ton and Racket, in Lin. Trans, viii. p. 143. Dorset 

 Cat. p. 46. 1. 14. f. 16. 

 Inhabits the coasts of the West of England, and South Wales. 



Montagu. 

 Shell about half an inch long, and one third as broad, with 



eight whirls, and about the same number of longitudinal ribs; 



tlie colour is generally yellowish white, or sometimes pale 



reddish or purplish brown, and Mr. Montagu says it has 



been found of a blush-colour, with the decussated striae 



white. 



COSTATUS. 127. Shell oblong, with eight longitu- 

 dinal elevated ribs ; beak very short and ob- 

 solete. 



Murex costatus. Pennant Zool. iv. p. 125. t. 79- Dono- 

 van, iii. t. 91- Montagu Test. p. %Q5. Maton and 

 Racket, in Lin. Trans, viii. p. 144. Dorset Cat. p. 46. 

 t. 14. f. 4. 

 Murex truncatus. Gmelin, p. 3547.? 

 Buccinum costatum. Da Costa Brit. Conch, p. 128. t. 8. 



f. 4. 

 MuUer, in Acta Nidros. iv. jf. 97. t. 16. f. 26..? 

 Inhabits the coasts of Great Britain. Pennant, d^x. Norway, 



Muller. 

 Shell about three tenths of an inch long, and one eighth of an 

 inch broad, with about six whirls, and eight equi-distant 

 longitudinal ribs ; the colour is whitish, pale purplish, or 

 brown, generally more or less distinctly marked with trans- 

 verse chestnut stripes, and I have sometimes found it in 

 Langlan Bay near Swansea, with the ribs white, and their 

 interstices purplish brown. 



M 2 



