GASTEROPODA. PURPURADZ. 37 
1. BELA NEBULA. 
B. testa flavescente, fuscescente aut rosacea ; lineis albidis trans- 
versis ; anfractibus novem transversim costatis ; costis gla- 
bris ; interstitiis lineis tenuissimis elevatis sculptis. 
Murex nebula, Mont. Test. Brit. 267.—Suppl. t. xv. f. 6; 
M. & R. Trans. Linn. Soe. vii. 143; Flem. Edinb. Encyel. 
vil. 71; Dill. Desc. Cat. 743; Turt. Conch. Dict. 92. 
Habitat in maris Britannici littoribus arenosis vulgatissimé. 
Shell yellowish, pale fuscous brown or rosy, with transverse 
white lines; with nine transversely ribbed whorls; the ribs 
smooth, the interstices sculptured with very narrow elevated 
lines. 
This species is very common on all the coasts of the British 
seas. 
2. BELA RUFA. 
B. testa rufa, castanea aut brunnea, moderatim turrita ; anfrac- 
tibus septem transversim costatis ; interstitiis lineis transversis 
elevatis sculptis. 
Murex rufus, Mont. Test. Brit. 263; M. §& R. Trans. Linn. 
Soc. viii. 145; Flem. Edinb. Encycl. vi. 71; Dill. Desc. Cat. 
744; Turt. Conch. Dict. 93. 
Habitat in Danmonie, Cantize, Hibernize et Caledoniz sinubus 
arenosis. 
Shell red, chestnut or brown, moderately turrited, with seven 
transversely ribbed whorls, the interstices sculptured with trans- 
verse elevated lines. Height three-eighths and half of an inch. 
Inhabits the sandy bays of Great Britain ; Sandwich, Kent ; 
Torbay, Devon; Dublin and Bantry Bays in Ireland, and the 
Frith of Forth in Scotland. 
3. BELA CRANCHIANA. 
B. testa nigricante moderatim turrita ; anfractibus sex transver- 
sim costatis ; costis et interstitiis irregulariter impresso-line- 
atis. 
Color testze nigrescens; apertura rubro-flavescens ; peritrema 
atro-purpureum. 
