WHITEAVE8. J APPENDIX. 423 



Page 206. 



For "Pachypora cervicornis, DeBlainville. (Sp.) " — read: 

 Cladopora cervicornis, De Blaiiiville. (Sp.) 



Mr. L. M. Lambe, who is making a special study of Canadian Palaeozoic 

 corals, thinks that Pachypora, Lindstrom, is synonjmous with Cladopora, 

 Hall. 



Page 207. 



For "Alveolites R.emeri, Billings" — read : 

 Cladopora R.emeri, Billings. (Sp.) 

 And, after the paragraph referring to that species, insert the following. 

 Cladopora turgida, Roniinger. 



Chtdopor'f ti'njida, Rominger. 1870. Geol. Surv. Michigan, Fossil Corals, p. 48, pi. 19, 

 tig. 2. 



A fragment of a specimen from the Ramparts, Mackenzie River, col- 

 lected by Robert Kennicott, loaned by the U. S. National Museum and 

 labelled No 14,-551, has been identified with this species by Mr. Lambe. 



Page 216. 



For " Strophalosia productoides, Murchison " — read : 

 Productella productoides, Murchison. (Sp.) 



And, add to the list of references : 

 Productella productoides, Hall & Clarke. 1892. Pal. X. York, vol. VIII., pt. 1, p. 317. 



Page 217 (and pt. 4, page 283). 



Prodoctella subaculeata and its var. cataracta. 



On page 318 of his recently published Synopsis of American Fossil 

 Brachiopoda, Mr. Schuchert expresses the opinion that "for the present 

 it is preferable to retain the name P. spinulicosta" for the American De- 

 vonian forms which have been identified with P. subaculeata, and its var 

 cataracta. In that publication he includes the specimens referred to un- 



