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 

 tlie 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. 



Burlington, 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 : — 



Onchidium Carpenter!. 



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

 of them are only coast range species in Caliibruia, not being found in tlie 

 Sierra Nevada. 



On p. 19 to the second list add : — 



Macrocyclis Hemphilli. Onchidium borealis. 



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

 in the descriptive portion of the work. Most of the species are confined to the 

 vicinity of the coast ; as, — 



Macrocyclis Voyana. Arionta Nickliniana. 



Duranti. Californieiisis. 



Limax Hewstoni. Traski. 



Ariolimax niger. Carpenteri. 



Hemphilli, sequoicola. 



Andersoni. Dupetithouarsi. 



Aglaia infumata. Diabloensis. 



Arionta arrosa. Stearnsiana. 



exarata. Euparypha Tryoni. 



VOL. XI. — NO. 8. 



