THE EXPERIMENTAL HYBRIDIZATION OF ECHINOIDS. 141 



10. Loeb, Jacques, King, "W. 0. R., and Moore, A. R. Uber Dominanzerscheinungen 



bei den Hybriden Pluteen des Seeigels. Arch, fiir Ent. Mech. Vol. xxix, 

 p. 354. 1910. 



11. MacBride, E. W. The development of Echinus esculentus, together with some 



points in the development of E. miliaris and E. acutus. Phil. Trans. 

 Roy. Soc, Lond. Ser. B. Vol. cxcv, p. 285. 1903. 



12. Morgan, T. H. The fertilization of non-nucleated fragments of Echinoderm 



eggs. Arch, fiir Ent. Mech. Vol. ii, p. 268. 1895. 



13. Mortensen, Th. Die Echinodermlarven der Plankton Expedition, p. 68. 1898. 



14. • "Ingolf " Echinoidea. Vol. i, p. 162. 1903. 



15. Echinological Notes. Saertryk of Vidensk. Medel. fra den naturh. 



Foreni Kbhrn. 1911. 



16. Seeliger, 0. Giebt es geschlechtlich erzeugte Organismen ohne miitterliche 



Eigenschaften ? Arch.filr Ent. Mech. Vol. I, p. 203. 1894. 



17. Steinbruck, H. tJber Bastardbildung zwischen Strongylocentrotas und Sphaer- 



echinus. Arch, fiir Ent. Mech. Vol. XIV, p. 1. 1902. 



18. Tennent, D. H. Echinoderm Hybridization. Papers from the Tortugas Lab. of 



the Carnegie Inst, of Wash. Vol. iii, p. 117. 1911. 



19. Vernon, H. M. Effects of Environment on Echinoid Larvae. Phil. Trans. Roy. 



Soc, Lond. Ser. B. Vol. clxxxvi, p. 577. 1895. 



20. The Relation between the Hybrid and Parent forms of Echinoid 



Larvte. Phil. Trans. Roy. Soc, Lond. Ser. B. Vol. cxc, p. 465, 1898. 



21. Cross-fertilization among Echinoids. Arch, fiir Ent. Mech. Vol. ix, 



p. 464. 1900. 



