No. 8.— A Supplement to the Fifth Volume of the Terrestrial Avr- 
Breathing Mollusks of the United States and Adjacent Territories. 
By W. G. BINNEY. 
Tue 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 Zovdlogy, Vol. IV., of the 
fifth volume of the Terrestrial Air-Breathing Mollusks of the United 
States. 
Bur.incTon, New Jersey, July, 1883. 
In the chapter on Geograpical Distribution several additions and corrections 
are to be made. 
On p. 18 to the first list add : — 
Onchidium Carpenteri. 
The species are said to range over the whole of the Pacific Province. Some 
of them are only coast range species in California, not being found in the 
Sierra Nevada. 
On p. 19 to the second list add :— 
Macrocyclis Hemphilli. Onchidium borealis. 
In the Californian Region (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. Californiensis. 
Limax Hewstoni. Traski. 
Ariolimax niger. Carpenteri. 
Hemphilli, sequoicola. 
Andersoni. Dupetithouarsi. 
Aglaia infumata. Diabloensis. 
Arionta arrosa. Stearnsiana. 
exarata. Euparypha Tryoni. 
VOL. XI.— No. 8. 
