243 



A. H. Clark. Buil. du Mus. d'hist. nat., Paris, 1911, N° 4, p. 257, fig. 2, p. 258 [Heliometra 



magellanicd). 

 Smithsonian Miscellaneous Collections, vol. 60, 19 12, N° 10, pp. 3, 32 {Solanometra 



magellanicd]. 



Smithsonian Miscellaneous Collections,' vol. 61, 1913, N° 15, p. 62 {Florometra magellanicd). 



Buil. de 1'Institut océanographique, Monaco, N° 285, 19 14, p. 3, footnote {Antedon magel- 



lanica; referred to Florometra) . 

 Die Crinoiden der Antarktis, 191 5, p. 142, pi. 8, figs. 1 — 5 {Promacliocrinus [Florometra] 



magellanicd). 



2. Florometra perplexa (A. H. Clark). 



A. AGASSIZ. Buil. Mus. Comp. Zool., vol. 21, 1891, N° 4, p. 197 {Comatula sp.). 

 HARTLAUB. Buil. Mus. Comp. Zool., vol. 27, 1S95, N' J 4, p. 139 {Antedon rhomboidea, part; 



specimens from Panama, but not that collected by Dr REHBERG in Smyth's Channel). 

 A. H. Clark. Proc. U. S. National Museum, vol. 33, 1907, p. 74 {Antedon perplexa). 

 A. H. Clark. Buil. Mus. Comp. Zool., vol. 51, 1908, N° 8, p. 238 {Heliometra rhomboidea). 



3. Florometra serratissima (A. H. Clark). 



RlTTER. Science (N. S.), vol. 15, 1902, N° 367, p. 62 {Antedon rosacea). 



A. H. Clark. Proc. U. S. National Museum, vol. 33, 1907, p. JJ {Antedon serratissima). 



4. Florometra tanneri (Hartlaub). 



HARTLAUB. Buil. Mus. Comp. Zool., vol. 27, 1895, N° 4, p. 141, pi. r, 'fig. 9; pi. 2, fig. 13; 

 pi. 3, figs. 20, 22 {Antedon tanneri). 



5. Florometra mariae (A. H. Clark). 



A. H. Clark. Proc. U. S. National Museum, vol. 33, 1907, p. f] {Antedon mariae); p. y8 



{Antedon hondoensis). 

 Die Crinoiden der Antarktis, 191 5, p. 142 {Florometra mariae; record of a specimen 



collected by Professor Dofleix). 



6. Florometra asperrima (A. H. Clark). 



A. H. Clark. Proc. U.S. National Museum, vol. 33, 1907, p. J^ {Antedon asperrima); p. 75 

 {Antedon inexpectata). 



7. Florometra laodice . (A. H. Clark). 



A. H. Clark. Proc. U.S. National Museum, vol. 33, 1907, p. 75 {Antedon laodice); p. 76 

 {Antedon rathbuni). 



As in the case of many other echinoderm genera inhabiting the north Pacific which as 

 generic units are well circumscribed, the delimitation of the several species of Florometra presents 

 extraordinary and unusual difhculties. Although the material at hand, consisting of about 1500 

 specimens from throughout the range of the genus, would be considered ample in the case of 

 most types, in this case it merely increases the confusion. 



