790 " THETIS " SCIENTIFIC RESULTS. 



Differential Characters. — The species of Co^npsonietra are 

 readily distinguished from those of any other Australian genus 

 by tlieir very small size, the very long P^, which is slender and 

 composed of elongated segmeiits, the delicate cirri which have 

 less than fifteen segments, long and "dice-box shaped," at least 

 in the proximal half, and the I'egularity in the distribution of 

 the syzygies. 



Range. — Compsometra ranges from Southern Australia to 

 Southern Japan and the Hawaiian Islands. 



COMPSOMETRA LOVENI {Bell). 



1, Kallispongia archeri, 1877, Wright, Proc Roy. Irish Acad., [2], 

 vol. 2, p. 754 (Australia). 



Antedon loveni, 1882, Bell, Proc. Zool. Soc, 1882, p. 534 (Port 

 Jackson, 0-5 fms.).— 1908, A. H. Clark, Proc. U.S. Nat. 

 Mus., vol. 34, p. 481. 



Antsdon jmmila, 1884, Bell, Rep. Zool. Coll. H.M.S. "Alert," 

 p. 157, pi. X., figs. B, B«, b (based on the same specimens as 

 the preceding). — 1885, Proc. Linn. Soc. N.S. Wales, vol. 9 

 (1884), p. 497 (Nelson's Bay, Port &tephe7is). — \88d , Ann. 

 and Mag. Nat. Hist., [6], vol. 3, p. 292.— 1889, Whitelegge, 

 Journ. Roy. Soc. N.S. Wales, vol. 23, p. 197 (Port Jackson, 

 deep tvater ; Taylor Bay; Watson's Bay. — 189U, P. H. 

 Carpenter, Proc. Roy. Soc. Vict., (N.S.), vol. 2, p. 135 {Fort 

 Phillip). — 1890, Ramsay, Rec. Austr. Mus., vol. 1, p. 84 

 {Port Jackson). 



Biff'ereiitial Characters.— TWi'^ delicate little species may readily 

 be distinguished from C. laxertosa by its much more slender cirri 

 in which the segments preceding the penultimate are at least 

 half again as long as broad. 



Specimens in the Austi-alian Museum Collection. — Claremont 

 Island, 11 fathoms — One typical specimen. 



Nelson's Bay, Port Stephens — Forty-three specimens ; six of 

 these are deep purple, the remainder being dull greyish-yellow 

 more or less tinged with brown. 



Port Halliday. — Fragments. 



Broughton Island. — Eight specimens ; four are yellow, three 

 brown, and one deep purple with each segment of the arms, 

 pinnules, and cirri bordered with white. 



Bottle and Glass Rocks, Port Jackson. — Thirty-four specimens. 



Port Jackson. — Six hundred and forty-six specimens. 



