BULLETIN OF THE UNITED STATES FISH COMMISSION. 121 



1879. Packard, A. S., jr. The Breeding Habits of the Eel. < Ameri- 



can Naturalist, xiii, 1879, pp. 25-30, and 125 (a correction). 



[On the 18th aud 20th of February, 1879, Dr. Packard found three speci- 

 mens which were supposed to contain the organs of Syrski, and in which he 

 thought he detected the presence of living spermatozoa. He subsequently 

 came to the conclusion that the movements observed by him were simply 

 Browuian movements among the fat corpuscles, and that the supposed 

 spermatozoa were only yolk particles. See, also, Zoologischer Anzeiger, 

 April, 1879, p. 193; Jan. 13, 1879; April 21, 1879.] 



1880. Ballou, William HosEA. 'Eelii {Anguilla acutirostris). < Chi- 



cago Field, xiv, 1880, pp. 291-292. 



[A description of the eel fisheries of Oswego River, New York. Claims 

 that eels spawn in Oneida Lake. ] 



1880. Heemes, Dr. Otto [Director, Berlin Aquarium.] Ueber Aalbrut 



und Aufzucht junger Aale. <Circular, Deutscher Fischerei- 



Verein, 1880, Feb. 12, No. 1, pp. 23-25. 



["Concerning young eels and their propagation." Describes the mount- 

 ing of the young eels in June in the river Elbe ; gives directions for trans- 

 porting young eels.] 



1880. Hermes, Dr. Otto. Ueber Aalmannchen und Aalweibchen. 



< Circular, Deutscher Fischerei-Verein, 1880, No. 2, March 

 27, pp. 55-57, cut. 



[ ' ' Concerning male eels and female eels." Dr. Hermes gives a brief his- 

 tory of the search for male and female eels, with an account of the discov- 

 ery of male eels by Syrski. He recounts the external and internal marks 

 of males and females, as indicated by Syrski and Jacoby. 



Dr. Hermes, visiting the fish market of Trieste in company with Dr. 

 Syrski, found fifteen males among twenty selected according to these indi- 

 cations, but in Berlin could find none. He indorses the opinion that males 

 occur as a rule only in the sea and in the mouths of rivers. He caUs atten- 

 tion to the importance of searching for male eels on the coasts of the German 

 Ocean aud the Baltic, and advises that examinations shall be confined to 

 examples less than 18 inches loug, since the male eel rarely exceeds this size. 



1880. Hermes, Dr. Otto. Zur Fortpllanzung des Aals. < Deutsche 

 Fischerei-Zeitung, iii, 1880, June 8, pp. 244-245. 



[Announces the discovery of male eels in the Baltic. Dr. Hermes examined 

 two lots of 72 each of eels 38 to 42 centimeters long, one lot from Wismar, 

 another from the region between Seeland and Laland. In each of these 

 lots he found 8 males.] 



1880. Hermes, Dr. Otto. Zur Fortpflanzung des Aales. < Circular, 

 Deutscher Fischerei-Verein, vi, 1880, Nov. 25, pp. 197-201, 2 

 cuts; Zoologischer Anzeiger, 1881, No. 74, pp. 39-44. 

 ["On the reproduction of the eel."] 



1880. Hermes, Dr. Otto. Ueber Aalbrut und Aufzucht junger Aale. 



< Oesterreich-Ungarische Fischerei-Zeitung, i, 1880, No. 11, 

 March 16, pp. 83-84. 



[Dr. Hermes suggests methods for the transportation of young eels.] 



