192 
Genus Compsometra A. H. Clark. 
Compsometra 1908. A. H. Clark, Proc. Biol. Soc. Washington, Vol. 21, 
p:151 
Compsometra serrata (A. H. Clark). 
Antedon serrata 1908. A. H. Clark, Bull. Mus. Comp. Zool., Vol. 51, 
No. 8, p. 240, pl. I, fig. 4. 
"ger Rd fe; serrata 1908. A. H. Clark, Proc. Biol. Soc. Wash., Vol. 
5 18k 
Formosa Channel; 35 fathoms; Suensson, November 
23, 1901. 'One small specimen. 
Genus Iridometra A. H. Clark. 
Iridometra 1908. A. H. Clark, Proc. Biol. Soc. Washington, Vol. 21, 
p. 130. 
Iridometra nana (Hartlaub). 
Alecto macropyga Litken, M. S. 
Antedon nana 1890. Hartlaub, Nachr. Ges. Gåttingen, Mai 1890, p. 170. 
Iridometra nana 1908. A. H. Oak, Proc. Biol. Soc. Washington, Vol. 
+ P 
Nicobar Islands. One specimen with arms 35 mm. long, 
agreeing perfectly with Hartlaub's description and figures. 
Singapore. April 16, 1907. Two specimens, agreeing 
in every way with the preceding, and of the same size; one small 
specimen, with arms 15 mm. long. 
— November 27, 1907. Four large specimens with arms 
about 40 mm. long, violet, the cirri white, becoming light purple 
distally; one smaller specimen, nearly white, the brachial, pinnule, 
and cirral articulations banded with dark brown. 
April 20, 1906. One small specimen. 
ETERN ES ER EDEN gET, 
