546 Verrill, JVotes on Radiata. 



lations or teeth on the sides and edges, and mostly confluent with 

 those of adjacent cells. Color of the unbleached coral ash-gray or 

 yellowish gray. 



Height of coral 3 inches ; length of living portion of branches '25 

 to -45 ; the diameter of the larger cells -10 of an inch. 



Panama and Pearl Islands, — F. H, Bradley ; La Paz, Gulf of Cali- 

 fornia, — J. Pedersen. 



Addenda. 



Since the preceding article has been in press several collections have 

 been received from new localities, containing, in some cases, additional 

 varieties and species, some of which are introduced here to make the 

 article more comjilete, while the others will be enumerated in tlie geo- 

 graphical lists in the next article. Some of the species of the west 

 coast have also been figured and described during the past year in 

 foreign works. Dr. Albert Kolliker, especially, has very fully descri- 

 bed some of the Pennatulidm in his admirable work on that group. 



Renilla amethystina Verriii, p. 379. 



Renilla reniformis {pars) S. Richiardi, MonoRrafia della fomiglia dei Pennatularii, in 

 Archivo per la Zoologia, I'Anatomia e la Fisiologia, Ser. ii, vol. i, p. 133, 1869, {non 

 PaOas). 



Dr. Richiardi has made a serious mistake in referring this very dis- 

 tinct species to the common species of the southern coast of the Uni- 

 ted States. He also refers R. Damti V. and R. peltata V. to R. reni- 

 formis, both of which are very distinct from it, approaching R. viola- 

 cea more nearly, though apparently quite distinct from that species 

 also. It is probable that he is personally unacquainted with these 

 species. 



Leioptilum. undulatnra Verriii, p. 38i 



Pennatula undulata Richiardi, op. cit., p. 33. 



Leioptilum undulatum Kolliker, AQatomisch-Systematische Beschreibung der Alcyo- 



narien, I, Pennatuliden, (Abhandl. d. Senckenb. Naturf. Gesellschaft, Bd. vii), p. 



143, Taf. X, figures 76, 77, 78. 1870. 



Prof. Kolliker describes three additional specimens from Mazatlan, 

 all of which were larger than the original specimen. They were re- 

 spectively 127""» long by 32""^ broad; 167 long, the feather 89, stock 

 of 78; and 235'"™ long, the feather 133, stock 102, breadth of feather 

 58, stock 22, greatest breadth of the pinniB 48, height 26. The last 

 specimen had 32 pinnae on one side and 34 on the other. 



