APPENDIX. 



B)- an assistance received from tlie Carlsberg Fond, for which I here render my best thanks, I was 

 enabled to go abroad for a longer time during the snmmer 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 piaces concerned of the text. 



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

 Loriol, Doderlein, and Mobius, as well as to Dr. Meissner for the liberaUty they have shown 

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

 importance. 



The treatment of the pedicellariæ (pp. 10, 55). For the Lsolation of the skeletal parts it is more 

 convenient to use hypochlorite of sodium (Na OCl.) (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 pedicellariæ 

 hvpochlorite of sodium is absolutel}- 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. 



<i.Globiferæy> Hamann (pp. 10, 55). As I had had no occasion to examine these organs myself, I 

 supposed them really to be globiferous pedicellariæ, whose peculiar appearance was due to the highh- 

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

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

 pedicellariæ. Having now had the occa.sion to e.xamine these peculiar pedicellariæ myself I must 

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

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

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

 is absolutel)- inadmissible to use the name of Globiferæ of these pedicellariæ, they are morphologi- 

 cally highly different from the globiferous pedicellariæ. If a special name is needed for them, the)- 

 must be cailed claviform pedicellariæ, which name has been proposed by Foet tinger (155) what 



I) Vorlaufige Be.schreibung der neuen, durch die Siboga-Expeditiou gesaiiiiuelten Echiniden. Tijdschr. d. Nederl. 

 Dierk. Vereen. (2) VIII. 1902. p. 16. 



The Ingolf-Expedition. IV. i. 22 



