140 
ZOOLOGICAL LITERATURE. 
Petromyzon japonkus described by Martens as a new species in Wiegm. 
Arch, xxxiv. p. , taf. 1. fig. 2 [does not appear to be specifically distinct 
from P. fluviatilis], 
Petromyzon reissneri described as a new species from Transbaikalia by 
Dybowski, Verb. Z.-I3, Ges. Wien, 1869, p, 068. 
