MoUusks. 



5875 



that exists, and which undoubtedly requires the greatest exertions 

 and skill on the part both of the horse and rider. I had almost ap- 

 pended some account of the rifle shooting at a mark by the Tyrolese 

 w ho flock to Munich at certain seasons, and which was really inte- 

 resting to witness ; and also of the horse racing in the same capital, 

 one of the most horrible sights I ever beheld ; but, recollecting that 

 such subjects scarcely come within the province of the ' Zoologist,' 

 and fearing the wrath of its excellent editor, I spare the readers 

 of that periodical, at any rate for the present, and conclude. 



Alfred Charles Smith. 



Yatesbury Rectory, Calne, 

 November 9, 1857. 



Tlie Mollusca of the Firth of Clyde. 

 By the Rev. Alfred Meble Norman, B.A. 



(Continued from page 5713). 



Fam. X. Donacidce. 



*Donax Anatinus [Donax trtinculiis). Included in the lists of 

 Mr. Smith and Dr. Landsborough, but I have not met with it myself 



Fam. XI. Mactrid(B. 



Mactra solida. Bute, Cumbrae and Arran, but it is not a com- 

 mon shell in the district. 



* „ truncata. Bute, Smith ; Lamlash Bay, Landsborough. 



* „ elliptica. Occasionally taken with the dredge on hard 

 ground in the coralline zone. The specimens from off Cumbrae ex- 

 ceed in dimensions any that I have taken or received from elsewhere ; 

 an individual in my cabinet measures one and a quarter inch long 

 and four-fifths of an inch broad. 



* „ subtruncata. Is a very abundant shell in the Clyde, and 

 is known in the district by the name of " Aikens." It is frequently 

 used for bait, and is usually found in the sand at low-water mark, and 

 is either raked up from the sand, or gathered by the hand when 

 thrown to the surface by storms. Millport Bay, Lamlash and Ar- 

 drossan are prolific localities for it. It attains a large size here, ex- 

 amples commonly exceeding one and a quarter inch long and an 

 inch broad. " A large and much-produced variety is very common on 



