ERRATA. 
Mollusca , p. 31, line 13, for il id.” read “ Simroth.” 
„ 10, „ “ id.” „ “SiMROTii.” 
Vermes , p. 1, line 22, /or “ 19,” read “ 23.” 
„ 26, after 11 Deodrilus ,” add “ Desmogaster v 
„ 28, „ “ Pygmceodrilus ,” add 11 Sabellarites ” 
p. 2, „ 1, „ PoRYCiliETA,” atfcZ “ Ilelcaterobranchux.” 
