MARSHALL: ADDITIONS TO 'BRITISH CONCHOLOGY.' 261 



Buccinum humphreysianum van ventricosum Kiener, 

 Larger and more ventricose ; operculum slightly larger 

 proportionately. I have seen a specimen of this variety in 

 Mr. Jordan's possession from the south of Ireland. 

 Murex aciculatus var. elongata Monterosato. Spire 

 longer and narrower, body-whorl smaller and compressed. 

 Coast of Africa (Monterosato). Herm Island, low water. 

 This variety appears in Mr. Somerville's List as a ]\IS. one 

 of mine, but the Marquis de Monterosato published it in 

 1880. 

 Fusus gracilis var. bel liana Jordan. (See 'Journal of Con- 



chology' for July, 1890). 

 F. gracilis var. coulsoni Jordan. (See 'Journal of Con- 

 chology' for July, 1890). 



Mr. H. K. Jordan, F.G.S., in his very interesting paper on 

 the 'Genus Fusus,' in the number of the Journal above quoted, 

 has proposed the introduction of nine more species of Fusus 

 into the British List — species found by various Government 

 expeditions, and most of them represented by a single specimen 

 only. For the reasons given in my preface I do not propose 

 to enumerate these. While it is instructive to record and 

 interesting to know that certain species live in that part of the 

 ocean surrounding our islands, it appears to me superfluous to 

 load our list, perhaps for all time, with the names of species of 

 which nothing more may ever be generally known beyond the 

 mere name. If these species (and others) had been obtained 

 by private enterprise, and could be considered as obtainable 

 by the ordinary dredger or naturalist, they would come more 

 within the range of practical conchology. As it is, they are 

 almost exclusively museum specimens, and are likely to re- 

 main so. 



Nassa reticulata van minor Marsh. Much smaller, rang- 

 ing from two to six lines in length. Not uncommon in 

 Torbay, and probably to be found in other places. My 

 smallest specimens are under two lines in length, and have 



