1898 Lendenfeld p. 207. 



1898 Topsent pp. 123, 124, 129. 



1898 (j3) Topsent p. 1 10. 



1900 Topsent pp. 5, 10, 12, 10S, 113, 125 — 129; PI. III, figs. 13 and 16. 



1902 (/3) Topsent p. 330. 



1902 Vosmaer p. 106 [Engl. translat, from 1902 (3]. 



1902 ((3) id. p. 170. 



1909 Vosmaer p. 637 — 644 with one Plate. 



1909 («) id. [Engl. translat.] p. 642 — 648. 



Schmidt described in 1862 a new sponge which he named Tethya bistellata. In 1864 

 he changed the name into Suberites bistellatus. Topsent correctly observed that it was neither 

 a Tethya nor a Suberites \ h'owever, I demonstrated in 1909 that this author was wrong in 

 calling the sponge Hymedesmia bistellata, but that it belonged to the genus Spirastrella. In 

 my paper from 1909 I could not bring forward my arguments to identify the sponge with 

 Lamarck's Alcyonium purpureum \ I therefore used the name Lendenfeld applied viz. Spirastrella 

 bistellata. To the specimen I mentioned in 1909 (a) p. 643 as " Suberites bistellatus O. S. 

 Origin. Schmidt" I have given in this paper the mark G. M. 73- In Canon Norman's rich 

 collection I found a specimen, named by Topsent Hymedesmia bistellata, from Banyuls; the 

 nestor of spongiologists was so kind as to offer me a fragment, which bears now the mark M. N. 44- 



According to Lendenfeld (1. c. p. 55) this sponge is identical with S. decumbens Rdl. 

 and according to Topsent (1900 p. 12) S. bistellata of Lendenfeld is identical with S. cunctatrix 

 O. S., but not with T bistellata O. S. I believe, as I have stated before, that Lendenfeld 

 was right in identifying his Spirastrella bistellata with Schmidt's Tethya bistellata. 



[Cf. 5". decumbens, transitoria and semilunaris]. 



III. Spirastrella cunctatrix. 



1S68 Schmidt pp. 17, 42, 43; PI. III, fig. 8. 



1879 (*) Carter pp. 356, 357, 360; PI. XXIX, fig. 12. 



1881 («) Carter p. 384. 



1882 Carter pp. 348, 349, 351. 

 1884 Ridley pp. 468, 623. 

 1886 Carter p. 112 — 116. 



1886 («) Carter p. 463. 



1887 Carter pp. 62, 75. 



1887 Ridley & Dendy pp. 229, 231. 

 1889 («) Dendy p. 21. 

 1892 Hinde & Holmes p. 223. 

 1894 («) Topsent pp. 39, 44. 



1897 Dendy p. 252 — 253. 



1898 Thiele p. 43. 



1900 Topsent pp. 8, 12, 101 (woodcut), 108, 110. 



1902 (p) Topsent pp. 328, 330, 333, 363. 



1902 Vosmaer p. 105. 



1902 ((3) Vosmaer p. 169. 



1909 Hentschel p. 382 — 383. 



1909 Vosm'aer p. 643. 



1909(3) Vosmaer p. 647. 



SIBOGA-EXPEDITIE Vla'. 2 



