50 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



Genus P(ECILOMETRA A. H. Clark 

 P(ECILOMETRA ACCELA (P. H. Carpenter) 



Antedon acacia 1888. P. H. Carpenter, " Challenger " Report, Comatulae, 

 p. 132 (1). 



I. "Challenger" Station No. 214. — Six specimens; the constric- 

 tion of the lower portion of the calyx seems to be a valid character for 

 differentiating this species from P. scalaris. 



Genus STROTOMETRA A. H. Clark 

 STROTOMETRA PARVIPINNA (P. H. Carpenter) 



Antedon parvipinna 1888. P. H. Carpenter, "Challenger" Report, Comatu- 

 lae, p. 127 (1). 



I. " Challenger" Station No. 192. — One specimen; this species is 

 closely related to 5\ hepburniana; it is a larger form with much less 

 expanded genital pinnules ; there is a delicate median carination on 

 the ossicles of the IBr series and on the first two brachials, which is 

 easily traceable all along the arm ; P 2 is rather more like P x than P s , 

 though it is larger and has some of the characteristics of the latter. 

 There are n-13 cirrus segments. 



Family ANTEDONID^ Norman 



Subfamily Antedonin^ A. H. Clark 



Genus ANTEDON de Freminville 



ANTEDON PETASUS (Diiben and Koren) 



Antedon petasus Brit. Mus., MS. (1). 

 Antedon bifida Brit. Mus., MS. (2). 



1. Bergen, Norway. — Two specimens. 



2. Norway. — Three specimens. 



ANTEDON BIFIDA (Pennant) 



Antedon rosacea 1886. Dendy, Proc. Roy. Phys. Soc, Edinburgh, vol. 9, 

 p. 180, pi. 10 (18).— 1886. Dendy, Studies Biol. Laboratory Owens Col- 

 lege, vol. 1, p. 299 (18).— 1891. Sladen, Proc. Roy. Irish Acad. (3), 

 vol. 1, p. 687 (23).— 1897. Sladen, Trans. Roy. Irish Acad., vol. 31, 

 P- 78 (3).— Brit. Mus., MS. (2, 18, 23, 26). 



Antedon bifida 1889. Bell, Ann. and Mag. Nat. Hist (6), vol. 4, p. 432 

 (29).— 1892. Bell, Proc. Roy. Dublin Soc. (N. S.), vol. 7, p. 522 (24).— 

 1892. Bell, Cat. Brit. Echinod. in Brit. Mus., p. 54 (4, 6, 9, 10, 11, 12, 13, 

 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 27, 28, 29, 30, 34, 35, 36).— 1905. Kemp, 



