APPENDIX. 
ADDITIONS AND CORRECTIONS. 
Cuass OF FIsHEs. 
[The following additions and corrections will serve to bring the nomen- 
clature of this group to date (1899), in accordance with Jordan & Evermann’s 
‘*Fishes of North and Middle America,’’ to which work the student is re- 
ferred for fuller details.] 
CLass CYCLOSTOMI. 
Page 10, read: 
3. LAMPETRA Gray, instead of Ammocetes, which was based 
on a larval Petromyzon. 
Page 10, read: 
8, Lampetra wilderi Gage, instead of Ammocetes branchi- 
alis. The American species is distinct from the European one. 
See Jordan & Evermann, p. 12. 
Page 10, read: 
3b. ICHTHYOMYZON Girard. A valid genus, distinct 
from Petromyzon. 
Cuass PISCES. 
Page 16, read: 
Famity VII. GALHEIDZ,, rather than Galeorhinide. 
Page 16, read : 
8. MUSTELUS Cuvier. This genus is distinct from Galeus. 
(See Jordan & Evermann, p. 29.) Its species is: 
11. M. canis (Mitchill). 
Page 16, read: 
12. Galeocerdo tigrinus (Miiller & Henle). 
Page 17, read: 
9b. PRIONACE Cantor. This genus is distinct from Car- 
charhinus proper. 
