20 AMPHINEUKA. 



end of the larva. As in the Solenogastres, the larval locomotory ectoderm is 

 thrown off during metamorphosis. The resemblance in the early cleavage 

 has been already pointed out. These very striking resemblances, suggesting 

 as they do a connection between the Solenogastres and the Lamellibranchia, 

 require further and more complete investigation. ED.] 



LITERATURE. 



1. BLUMBICH, J. Das Integument der Chiton. (With a pre- 



face by Hatschek, treating of the position of the Chitones 

 or Amphineura). Zeitschr. f. mas. Zool., Bd. lii. 1891. A 

 critical account of this treatise, with remarks on the integu- 

 ment as well as on the systematic position of the Chitones, 

 by Thiele. Biol. Gentralbl. Bd. ii. 1891. 



2. HALLEB, BEL A. Die Organisation der Chitonen der Adria. 



Theil. i. u. ii. Arb. ZooL Inst. Univ. Wien. Bd. iv. u. v. 

 1882 u. 1884. 



3. HANSEN, G. A. Neomenia, Proneomenia und Chatoderma. 



Bergerts Museums Aars beretning for 1888. Bergen 1889. 



4. HUBRECHT, A. A. W. (1) Proneomenia Sluiteri. Nederland. 



Archiv. Zool. Suppl. I., 1881. (2) A contribution to the 

 morphology of Amphineura. Quart. Journ. Micro. Set. Vol. 

 xxii. 1882. 



5. HUBBECHT, A. A. W. Dondersia f estiva. Donders-Feestbundel 



Nederl. Tijdschr. 1888. 



6. KOWALEVSKY, A. Ueber die Entwicklung der Chitonen. Zool. 



Am. Jahrg. ii. 1879. 



7. KOWALEVSKY, A. Weitere Studien iiber die Entwicklung 



der Chitonen. Zool. Am. Jahrg. v. 1882. 



8. KOWALEVSKY, A. Embryogenie du Chiton polli avec quel- 



ques remarques sur le d^veloppement des autres Chitons* 

 Ann. Mus. Hist. Nat. Marseille Zool. Tom. i. 1883. 



9. KOWALEVSKY, A., ET MABION, A. F. Contributions a 1'histoire 



des Solenogastres. Ann. Mus. Hist. Nat. Marseille. Zool. 

 Tom. iii. 1887. 



10. LOV^N, S. Ueber die Entwicklung von Chiton. Archiv. f. 



Naturgeschichte. Jahrg. xxii. 1856. Oefversigt af kongL 

 vetenskaps. Acad. Fb'rhand. 1885. Translated in Ann. Mag. 

 Nat. Hist. Vol. xvii. 1856. 



11. MOSELEY, H. N. On the presence of eyes in the shells of 



certain Chitonidae and of the structure of these organs. 

 Quart. Journ. Micro. Sci. Vol. xxv. 1885. 



