ADDENDA 



Scatter Diagram (See page 619) 



L..ogth of P, In „™, 



Diagram showing relative proportions of the first two pinnules in some of the species of Ijometra: 

 hordea (H), graminea (G), vivipara (V), johanni (J), and fiatesctns (F). Tlie specimen of hivipara 

 from Bransficld Strait is represented by X. The diagonal indicates where the two pinnules would 

 be equal in length. (See p. 619.) 



Since this monograph was set in type, the following additional references dealing 

 with crinoid species coming within the scope of this final part of volume 1 of the mono- 

 graph have come to light. The arrangement is chronological. 



1956. Direction 42. Internat. Comm. Zool. Nom. 



Antedon, p. 161 (name usually treated as feminine, which gender is recom- 

 mended to the Commission). 



1957. Direction 73. Internat. Comm. Zool. Nom. 



Antedon, p. 209 (placed on Official List of Generic Names). 

 Antedon bifida, p. 200 (original combination Asterias bifida, a senior sjTionym 

 of Antedon gorgonia and placed on OfScial List of Specific Names). 



835 



