1224 BULLETIN OF THE BUREAU OF FISHERIES. 



RETZius, G. 



i88i. Das Gehororgan der Wirbelthiere. I. Das Gehororgan der Fische imd Amphibien. Stock- 

 holm, 4to, xi+222 p., 35 taf. 

 Scott, T. 



1906. Obser\-ations on the Otohths of some teleosteous fishes. Twenty-fourth Annual Report 

 Fisheries Board for Scotland, part 3, p. 48-82, pi. 1-5. 

 Sew ALL, H. 



1884. Experiments upon the ears of fishes with reference to the function of equilibration. Journal 

 of Physiology, vol. 4, p. 339-349- 

 Sherrington, C. S. 



1906. The integrative action of the nervous system. 8vo, xvi+411 p. New York. 

 Smith, H. M. 



1905. The drumming of the drum-fishes (Sciienida;) . Science, n. ser., vol. 22, p. 376—378. 

 Steiner, I. 



1886. Ueber das Centralner\'ensystem des Haifisches und des Amphioxus lanceolatus, und iiber 

 die halbzirkelformigen Canale des Haifisches. Sitzungsberichte der Akademie der Wissen- 

 schaften, Berlin, jahrg. 18S6, halbbd. i, p. 495-499. 

 1888. Die Functionen des Centralnervensystems und ihre Phylogenese. Zweite Abtheilung: 

 Die Fische. Braunschweig, 8vo, xii-)-i27 p. 

 ToM.^szEu^cz, .K. 



1877. Beitrage zur Physiologic des Ohrlabyrinths. Inaugural Dissertation, Ziirich. 

 Tower, R. \V. 



1908. The production of sound in the drum fishes, the sea-robin, and the toadfish. Annals New York 

 Academy Sciences, vol. 18, p. 149-180, pi. 6-8. 

 Webb, W. M. 



1905. The ears of fishes. Knowledge, n. ser., vol. 2, p. 59-61. 

 Yerkes, R. M. 



1905. The sense of hearing in frogs. Journal of Comparative Neurology and Psychology, vol. 15, 

 p. 279-304. 

 Zenneck, J. 



1903. Reagiren die Fische auf Tone? .\rchiv fiir die gesammte Physiologic, bd. 95, p. 346-356. 



EXPLANATION OF PLATE. 



Fig. I. — Saccular otoliths (sagittae) from the squeteague. All figures are placed with the anterior 

 ends uppermost. A, B, median faces of a right (.4) and of a left (B) otolith. C, D, dorsal edges of a 

 left (C) and of a right {D) otolith. E, F, lateral faces of a left (£) and of a right (F) otolith. 



Fig. 2. — Right half of the cranium of a squeteague viewed from the median face. The sagitta 

 is shown in the bony capsule that partly surrounds the sacculus. 



Fig. 3. — Dorsal view of the cranium of a squeteague. Much of the dorsal wall has been cut away 

 to show the two bony capsules in which the sagitta lie; the right sagitta is in normal position; the left 

 one is turned out against what would be the nonner\^ous lateral wall of the sacculus. 



Fig. 4. — \'entral view of the cranium of a squeteague, to show the bony capsules in which the sac- 

 cnU are lodged. 



