Boone, Coelenterata, Cruises of "Eagle" and "Ara," 1921-28 59 



Moroff (1902)* and Nutting (1909)** respectively describe 

 this sea-pen as Ptilosarcus quadrangularis, new species, based on 

 material from the southern California coast. Their descriptions, 

 while excellent and in far greater detail than Gray's (1860), 

 ignore the fact that his type came from Monterey, California, and 

 give no characters differentiating quadrangularis from the older 

 gurneyi. Verrill (1865 and 1918) uses Gray's name for the 

 New England and Arctic Canadian specimens that came under 

 his observation. Should the Arctic and Tropic West American 

 specimens prove distinct, as seems probable, Gray's name must 

 be retained for the Monterey, California, species, with Moroff 's 

 quadrangularis as synonym, and Verrill 's species would then be 

 in need of a new name, in which event I designate the northern 

 form Ptilosarcus verrilli. 



Family: PAVONARIIDAE. 



Genus : PAVONAEIA Kolliker, emended. 



Pavonaria californica Moroff. 



Plate 20. 



Type: Moroff 's type is in the Munchen Museum; the locality of 

 the specimen is not indicated, except by implication in the species 

 name. 



Distribution: This is a deep-water species found off the Pacific 

 coast of America from California, at Pt. Loma, La Jolla and Pt. 

 Pinos to off Punta Arenas, Costa Rica, in depths ranging from 100 

 to 1083 fms., and on the Asiatic Pacific coast from Bering Island, 

 Siberia, southward to Benkei Mizaki Light, Japan, in 72 to 224 fms. 



Material examined: Eleven colonies, dredged in 100 fms., Punta 

 Arenas, Costa Rica, February, 1928, by the "Ara." 



This record substantially extends the southern distribution of this 

 species on the American side of the Pacific, and is the least depth in 

 which it has been taken. 



Color: According to Dr. Nutting, the rachis is light yellow, the 

 polyps reddish brown; the terminal bulb also reddish brown. He 

 unfortunately neglects to state whether this information was obtained 



* Ptilosarcus quadrangularis Moroff, Zool. Jahrb. Abth. Syst. Geol. u. Biol. 



Thiere 17, p. 385, 1902. 

 ** Nutting, Proc. U. S. Nat. Mus., vol. 35, p. 689, pi. 84, figs. 4-10, pi. 85, figs. 



1-11, pi. 91, figs. 1, 2, 1909. 



