4 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



Page 183. Schismope coronata, Bartsch regards this as a new species which 



he calls S. califovnica. He also refers S. caliana to Adeorbis. 

 Page 192. Ischnochiton serratus dates from 1864. 

 Ischnochiton berryi, read " vol. 55." 



Ischnochiton niertensii, add " San Martin Island, Lower California," 

 Page 193. Pallochiton, read " 1879." 



Page 194. Callistochiton crassicostatus. Add " San Martin Island, Lower Cali- 

 fornia." 

 Page 196. Placiphorella velata. Add " Sooke Harbor, Vancouver Island, 



Macoun." 

 Page 197. Placiphorella pacifica, read " KasaJin Bay." 

 For Katherina read " Katharina." 

 Genus Cryptochiton, for Gray read " Middendorff." 

 Page 210. Belcher, Last of the Arctic Voyages, read *' vol. 2." 



