722 BULLETIN 82, UNITED STATES NATIONAL MUSEUM. 



Family CHARITOMETRID^E. 



Perissometra lata. Yellowish brown. 



Pachylometra levigata. Yellow. 



Calyptometra lateral-is. Arms ocher yellow ; cirri clear lemon yellow. 



Poscilometra scalans. Yellowish brown. 



Chlorometra garrettiana. Dull yellowish white. 



Strotometra hepburniana. Bright yellow. 



Family ANTEDONID^E. 

 Subfamily ANTEDONIN^E. 



Antedon petasus. (a) Red (varying from bright red to brown red) ; the 

 cirri white. 



(b) Banded red and white. 



(c) Almost uniform red, with the basal portion and ends of the arms white. 



(d) Almost uniform white, with the basal portion and ends of the arms red. 

 Antedon bifida. (a) Deep purple. 



(b) Uniform deep reddish purple. 



(c) Rich brown. 



(d) Reddish tawny. 



(e) Rich damask (especiallj' during the breeding eeason). 

 (/) Crimson. 



(ff) Red carmine. 



(h) Coarse red. 



(z) Scarlet. 



(j) Vermillion. 



(k) Deep rose. 



(I) Rose. 



(m) Rich orange. 



(n) Orange. 



(o) Yellow. 



(p) Mottled, or mottled and spotted. 



(q) Red, variegated with white on portions of the disk and arms. 



(r) Clouded and spotted with rose, orange, and yellow. 



(s) Rich orange variegated with crimson. 



(t) Rich orange variegated with white. 



(u) Rich orange variegated with bright sulphur yellow. 



In the prcbnichial or cystid stage the interior of the calyx is occupied by a 

 reddish brown visceral mass obscurely visible through the translucent walls. 



In the fully grown pentad-moid, according to Dr. W. B. Carpenter, the body 

 and arms usually possess a decided color, which is sometimes sulphur yellow, some- 

 time light crimson, sometimes an intermixture of both hues. This is usually 

 more pronounced in the arms than in the body, and is entirely due to the develop- 

 ment of pigmentary matter in the pyriform vesicles. 



