APPENDIX. 



By an assistance received from the Carlsberg Fond, for which I here render my best thanks, I was 

 enabled to go abroad for a longer time during the summer of 1902 to visit several of the most 

 important museums, especially British Museum and the Museum of Paris. By this I have been enab- 

 led to decide many of the questions which in the preceding work I had been obliged to leave unde- 

 cided. As the printing of the work had already gone so far, that nothing could be corrected or added, 

 these informations are here given in an appendix. Neither was it possible to insert any reference to 

 the appendix in the places concerned of the text. 



I beg leave to offer my best thanks to Messrs. Prof. Pfeffer, Sluiter, Bell, Perrier, de 

 Loriol, Doderlein, and M obi us, as well as to Dr. Meissuer for the liberality they have shown 

 especially by giving me free admission to examine the type specimens, which are of so very great 

 importance. 



The treatment of the pedicell arias (pp. 10, 55). For the isolation of the skeletal parts it is more 

 convenient to use hypochlorite of sodium (Na OC1.) (Eau de Javelle); it acts very quickly, and has not 

 to be heated as the solution of potash. Especially by the treating of very small forms of pedicellarise 

 hypochlorite of sodium is absolutely to be preferred, as the skeletal parts are by this means easily isolated 

 on the objectglass. Prof. Doderlein has drawn my attention to this very practical manner of proceeding. 

 Globifcrff Hamanu (pp. 10, 55). As I had had no occasion to examine these organs myself, I 

 supposed them really to be globiferous pedicellarise, whose peculiar appearance was due to the highly 

 developed glands on the stalk and the reduction of the head. In his preliminary report of the Echinids 

 of the Siboga-Fxpedition 1 ), de Mejere has given the information that they are really ophicephalous 

 pedicellarise. Having now had the occasion to examine these peculiar pedicellarise myself I must 

 corroborate the correctness of the statement of de Mejere; in Centrostephanus longispinus, to be sure, 

 they are somewhat different from the ophicephalous pedicellariae where glands are wanting on the 

 stalk, but in Aspidodiadrma they are constructed in quite the same manner as these. Accordingly it 

 is absolutelv inadmissible to use the name of Globiferse of these pedicellariae, they are morphologi- 

 cally highly different from the globiferous pedicellarise. If a special name is needed for them, they 

 must be called claviform pedicellarise, which name has been proposed by Foettinger (155) what 



M Vorlaufige Beschreibung der neuen, clurch die Siboga-Expedition gesammelten Echiniden. Tijdschr. d. Nederl. 

 Dierk. Vereen. 121 VIII. 1902. p. 16. 



The Ingolf-Kxpedition. IV. I. 22 



