12 BUCCINUM. WHELK. 



jecting inwards : length not a quarter of an inch ; breadth 

 reither more. 



D unbar, and Leitli roads : very rare. 



BUCCINUM. WHELK. 



Shell with a single spiral gibbous valve : aper- 

 ture oval, ending in a short canal leaning to the 

 right. 



1. Buccmiim Perdix. Partridge Whelk. 



Lifter, pi. 984. f. 43 Montagu, pi. 8. f. 5 Dorset Cat. 

 pi. 15. f. 14. 



Shell somewhat oval, thin, inflated, with five or six 

 spires ending in a fine point, the first very large and tu- 

 mid, with about twenty flat circular ridges which are 

 broader than the interstices between them : color greyish 

 or yellowish-brown irregularly marbled and spotted with 

 white : aperture large, oval ; the outer lip thin and without 

 teeth ; pillar-lip a little folding back on the lower part, 

 and forming a slight elongated h olio w behind it : length an 

 inch and a half; breadth an inch. 



On the Devon and Dorset coasts : rare. v. m. 



2. Buccinum undatum. Waved Whelk. 



Lister, pi. 962. f. \4Pefinant,pl. 76 Da Costa, pi. G. 

 f. 6- Donovan, pi. 104 Dorset Cat. pi. 17. f. 6. 



Shell oblong, coarse, tapering to a fine point : spires 

 seven or eight, inflated and deeply defined, with numerous 

 rather remote rounded longitudinal ribs which are rather 

 undulated, strongly striate transversely, and again crossed 

 with finer longitudinal lines : outer-lip a little undulated 

 in its circumference, sometimes thick and a little reflected, 

 sometimes thin: pillar-lip forming a slight projection below 

 the canal which is reflected, rugged on the outside to- 

 wards the top : color whitish or pale carnation, covered 

 with a brown skin, sometimes marked with rufous blotches 

 or bands, and sometimes there are three or four strong fo- 

 liations near the outer lip on the larger volution : length 

 four or five inches ; breadth nearly two. 



The young, soon after they &r<? excluded frcm the cells, 



have 



