No. 8. — A Supplement to the Fifth Volume of the Terrestrial Air- 

 Brcathing Mollusks of the United States and Adjacent Territories. 

 By W. G. BiNNEY. 



The following pages embody all the additional information relating to 

 the subject which I have been able to obtain since the publication in 

 the Bulletin of the Museum of Comparative Zoology, Vol. IV., of the 

 fifth volume of the Terrestrial Air-Breathing Mollusks of the United 

 States. 



BuKLixGTON, New Jersey, July, 1883. 



I^ the chapter on Geograpical Distribution several additions and corrections 

 are to be made. 



On p. 18 to the first list add : — 



Onchidiiim Carpenter!. 



The species are said to range over the whole of the Pacific Province. Some 

 of tlieni are only coast range species in Culil'ornia, not being found in tlie 

 Sierra Nevada. 



On p. 19 to the second li>;t add : — 



Macrocyclis Hemphilli. Onchidium borealis. 



In the Californian Region (p. 19), the^range of the species is limited, as shown 

 in the descriptive portioii of tlie work. Most of the species are confined to the 

 vicinity of the coast ; as, — 



Macrocyclis Voyana. Arionta Nickliniana. 



Duranti. Californiensis. 



Limax Hewstoni. Traski. 



Ariolimax niger. Carpenter!. 



Hemphilli. sequoicola. 



Anderson!. Dupetithouarsi. 



Aglaia infumata. Diabloensis. 



Arionta arrosa. Stearnsiana. 



exarata. Euparypha Tryoni. 



VOL. XI. — NO. 8. 



