556 DR. S. J. HICKSON ON 



The spicules are tuberculated spindles, very variable in size, 

 but with an average of about 0'12x0'04 mm., and double stars 

 rather smaller in size (text-fig. 5). 



The genus Psanimogorgia is represented by four species from 

 the tropical region of the west coast of America described by 

 Verrill (1868), and by three species from the coast of California 

 described by Nutting (1909, p. 719). In a recent paper 

 Kiikenthal (1913, p. 268) expresses the opinion that one of 

 Nutting's species should be referred to the genus Eitplexaura 

 of Verrill, as amended by him. 



It appears to me very doubtful whether the genus Psammo- 

 gorgia will stand as an independent genus, but I am not disposed, 

 until a further stud}^ is made of the species attributed to it from 

 the west coast of America, to merge it into the more widely 

 distributed genus Eiqjlexaura. The diagnostic characters of the 

 species are all most unsatisfactory, and it is almost certain that 

 if the genus stands it will stand as a single-species genus. In the 

 meantime, I refer the specimens from Alaska to the species to 

 which they appear to be most closely related. 



Literature. 



1914. Broch, H. — Danish Ingolf-Expedition. Vol. v. 5. 



Stylasteridse. 

 1898. Dall, W. H.— The Fur Seals and Fur Seal Islands of the 



Northern Pacific. Edited by D. H. Jordan. Part iii. 



pp. 539-546. 

 1911. Frasbr, C. McL.— " West Coast Hydroids.'' Bull. Univ. 



Iowa, No. 28, New Series. 

 1768. GuNNERUS, J. E. — " Om nogle norske Coraller." Norske 



Selsk. Skr. 4 deel. {Fide Broch.) 

 1898. Herdman, W. A. — " Description of some simple Ascidians 



collected in Puget Sound." Trans. Liverpool Biol. Soc, 



vol. xii. p. 248. 

 1883. HiCKSON, S. J. — "On the Ciliated Groove in the Stomo- 



dseum of the Alcyonarians." Phil. Trans. R. S. iii. 



1905. HiCKSON, S. J., and England, H, M. — Stylasterina. 



Siboga-Expeditie, viii. 

 1911. HiCKSON, S. J. — "On a Specimen of Osteocella se2)ten- 



ti'ionalis." Manch. Mem. vol. Iv. No. 23. 

 1847. Johnston, G. — Zoophytes. 2nd edition, p. 171. 

 1908. Kinoshita, K. — "Primnoidee von Japan." J. Coll. Sci. 



Univ. Japan, xxiii. Art. 12. 

 1761. KoELREUTER, J. F.- — " Zoophyti marini." Nov. Comment. 



Acad. Sci. Imp. Petropolitanse, vol. vii. pro Ann. 1758- 



1759. 

 1883. KoREN and Danielssen. — Nye Alcyonider, Gorgonider og 



Pennatulider. Bergens Museum. 



1906. KtTKENTHAL, "W. — " Japanische Alcyonaceen." Abhl. der 



K. -Bayer. Akad. Wiss. Suppl.-Bd. I. Abt. 1. 



