230 Paolo Della Valle 



1738. S w a m m e r d a m J.— Bybel der Nature: Leydae, Severinum & Van- 



,hr, 2 Voi. 910 pp. 55 Tnh. 

 1913. Taylor, M.— The Development of Symbranchus mannoratiis : Quart. 



Journ. Micr. Soc. Voi. .59, p. 1 Pli. 1-4. 

 1887. T h i e 1 e, J o h. — Der Haftapparat der Batrachierlarven: Zeit. Wisn. 



Z. 46 Bd. p. 67, Taf. 10, 1 fig. 

 1912. Versi uys, J. — Amphibia: Handworterbuch Naturwiss. Jena, Fi- 

 scher, l Bd. p. 313, 23 fig. 

 1908. V i a 11 e t o n, L. — Sur les arcs viscéraux et leur róle topographique 



chez les Vertébrés : Arch. Anat. Micr. Tome 10, p. 1, Pie. 1-3, 



8 fig. 

 1890. V i 11 y, F. — The Development. of the Ear and accessory Organs 



in the Common Frog: Qw(rt. Journ. Micr. Se. Val. 30, p. 523, Pli. 



34-35. 

 1842. V g t, C. — Untersuchungen iiber die Entwicklungsgeschichte der 



GeburtshelferkrSte [Alytes obsetetricans): Solothurn, ■ Jent & Gas- 



smann 134 pp. 3 Taf. 

 1867 W h i t n e y, W. U. — On the Changes which accompany the Meta- 



morphosis of the Tadpole, in reference especially to the Respi- 



ratory and Sangniferous Systems: Trans. R. Alter. Soc. Voi. 15, 



p. 43, Pli. 3, 4. 

 1897. Wilson, Ch. B. — Experiments on the Early Development of 



the Amphibian Embryo under the influence of Ringer and salt 



Solutions: Arch. Entw. Medi. 5 Bd. p. 815, Taf. 10-11. 

 1911. W i n t r e b e r t, P. — La distribution cutanee et l' innervation des 



organes latéraux chez la larve d' Alytes obstetricans: C. R. Soc. 



Biol. Tome 70, p. 1050, 2 fig. 



