Farn. Cidaridæ. 



1. Stephanocidaris bispinosa (Lamk.)- 



I'I. II. Figs. 3, 17, 18. PI. IV. Fig. 3U. PI. V. Figs. 20, 2.5. 



Ciilarites bispinusa Lamakck 1816. Hist. nat. des animaux sans vertèbres. T. III p. 57. (1840 T. 111. 



p. 3821. 

 StephaiiocicUiris bispinosa. A. Agassi/. 1872. Revision of Echini, p. lüO, 393, PI. I. c. Fig. 43, PI. 1. f. Fig. 1. 

 Cidaris Lütkeni. Dk Lokiol. 1873. Descr. de trois espèces d'Echinides. Mém. Soc. Sc. nat. Neuchatel IV. 



p. 29. PI. IV, 

 Rhabdocidaris bispinosa. De Lonioi.. 1873. Ibidem, p. 33. PI. \'. 



Schleinitzin creniihiris i pro parte). Stidkh. 1876. Über Echinodermen a. d. antarktischen Meere u. zwei 

 neue Seeigel von den Papua-Inseln, ges. auf d. Reise S. M. S. „(lazellc" um die Erde. 

 Monatsber. d. Rerliner Akad. 1876 p. 463. 

 — — Studer. 1880. Übersicht über die während der Reise S. M. Corvette „Gazelle" um 



die Erde 1874— 76 gesammelten Echinoideii. Ibid. 1880. p. 865 ipro parte, non Fig.), 

 lihabdocidahs recens. Thoschel. 1877. Archiv f. Naturgesch. 43. p. 127. Tab. Vlll. Nachträgliche Bemer- 

 kung. Ibid. p. 260. — Sitz. her. d. Niederrheiu. Gesellsch. (Pbys. Sect ) 1877. 

 Phyllacanthii.'i anniiUfera. Ramsav. 1885 (1891). Catalogue of the Echinodermata in the Australian 



Museum. 1. Echini, p. 2, 45. 

 Stephanocidaris bispinosa. Koehi.ek. 1895. Catalogue raisonné Echinod. îles de la Sonde. Mém. Soc. 



Zool. France VIII. p. 409. 

 Rhabdocidaris annulifera. Bedford. 1900. On Echinoderms from Singapore and .Malakka. Proc. Zool. 



See. p. 274. PI. XXI. Fig. 1. a— d. 

 Leiocidaris bispinosa. Dödehi.ein 1902. Bericht über d. v. Herrn Prof. Semon bei Amboina und Thurs- 

 day Island gesammelten Echinoidea. (Semon. Zool. Forschungsreisen V. .Jen. 

 Denkschr. VIII.) p. 695. Taf. LVIII. Fig. 5-11. 

 Stephanocidaris bispinosa. Tu. Mohtensen. 1903. Echinoidea 1. Danish Ingolf Exped. IV. 1. p. 17, 19, 28 



and 172. PI. X. Fig. 17. 

 Cidaris (Stephanocidaris) bispinosa. De Meueke. 1904. Die Echinoidea der Siboga-Expedition. p. 4. Taf. 



I. 4, Taf. II. 14. 



As indicated by the list of Sj'iionyms given here, this species has caused 

 much trouble to Zoologists; now, at length, through the researches of Döderlkin and 

 myself, especially by my examinalion of Lamarck's type-specimen, it has been 

 definitely settled which species is meant by the Cidarites bispinosa Lamarck; its 

 systematic position — in the genus Stephanocidaris — has likewise been determined 

 with certainty. The Cid. annulifera Lamk., which has mostly been confounded 

 with Steph. bispinosa, has been definitely shown to be either merely a variety of 

 Cidaris baculosa or, at most, a species very closely related to C, haculosa, belonging 



