288 THE VOYAGE OF H.M.S. CHALLENGER. 



2. Actinometra Solaris, Lamarck, sp. (PI. V. figs. 4, a-c ; PI. LIII. figs. 1-14; 

 Part I. pi. liv. figs. 10, 11 ; pi. lv. fig. 2). 



Specific formula. — a.R. "o-^- 



1816. Comatula Solaris, Lamarck, Histoire Naturelle des Animaux sans Vertebres, Paris, 1816, 



t. ii. p. 533. 

 1834. Comatula Solaris, de Blainville, Manuel dActinologie, Paris, 1834, p. 249. 

 1841. Actinometra imperialis, Muller, Monatsber. d. k. preuss. Akad. d. Wiss. Berlin, 1841, 



p. 181. 

 1843. Actinometra imperialis, Muller, Archiv f. Naturgesch., 1843, Jahrg. ix. Bd. i. p. 132. 

 1843. Alecto Solaris, Muller, Ibid., p. 135. 

 1843. Actinometra imperialis, Muller, Abhandl. d. k. Akad. d. "Wiss. Berlin, 1841 [1843], 



p. 226. 

 1849. Comatula (Actinometra) Solaris, Muller, Abhandl. d. k. Akad. d. Wiss. Berlin, 1847 



[1849], p. 248. 

 1862. Comatula Solaris, Dujardinand Hupe, Hist. Nat. des Zoophytes, Echinodermes, Paris, 1862, 



p. 200. 

 1862. Actinometra imperialis, Dujardin and Hupe, Ibid., p. 209. 

 1869. Comatula (Actinometra?) hamata, Herklots, Bijdragen tot de Dierkunde, 1869, Bd. ix. 



p. 10, pi. ix. 

 1879. Actinometra Solaris, P. H. Carpenter, Trans. Linn. Soc. Lond. (Zool.), ser. 2, 1879, vol. ii. 



p. 27, pi. i. fig. 2 ; pi. v. figs. 1-4. 

 1879. Actinometra robusta, P. H. Carpenter, Ibid., p. 27, pi. v. figs. 10-15. 



1881. Actinometra Solaris, P. H. Carpenter, Notes from the Leyden Museum, 1881, vol. iii. 



p. 192. 



1882. Actinometra Solaris, P. H. Carpenter, Journ. Linn. Soc. Lond. (Zool.), 1882, vol. xvi. 



p. 514. 

 1882. Actinometra robusta, P. H. Carpenter, Ibid., p. 517. 

 1882. Actinometra albonotata, Bell, Proc. Zool. Soc. Lond., 1882, p. 535. 

 1882. Actinometra Solaris, Bell, Ibid., p. 535. 

 1882. Actinometra albonotata, P. H. Carpenter, It>id., p. 747. 

 1882. Actinometra robusta, P. H. Carpenter, Ibid., p. 747. 

 1882. Actinometra Solaris, P. H. Carpenter, Ibid., p. 747. 

 1884. Actinometra Solaris, Bell (pars), Rep. Zool. Coll. H.M.S. " Alert " Lond., 1884, p. 164, 



pi. xvi. fig. A, a. 

 1884. Actinometra Solaris, var. albonotata, Bell, Ibid., p. 165. 

 1884. Actinometra intermedia, Bell, Ibid., p. 166, pi. xvi. fig. A, b. 

 1884. Actinometra robusta, Bell, Ibid., p. 167, pi. xvi. fig. A, c. 



1884. Actinometra strota, Bell, Ibid., p. 167. 



1885. Actinometra Solaris, Bell, Proc. Linn. Soc. N. S. W., 1884 [1885], vol. ix. p. 498. 

 1885. Actinometra intermedia, Bell, H/id., p. 498. 



Centro-dorsal a thin disk, bearing from ten to twenty-five marginal cirri. These have 

 from seventeen to twenty-four joints, usually about twenty, the later ones smooth and 

 .sometimes much longer than wide. 



First radials mostly concealed ; the second very short, closely joined laterally, and 

 united by syzygy to the widely pentagonal axillaries. Ten arms, which have more or 



