PROTOZOA. 577 
133-142 (February), pp. 188-215 (March), andpp. 250-264 
(April), pis. 5, 6, & 7. 
A sketch of the contents of this memoir has already been 
published in the Proceedings of the Boston Society of Natural 
History for June 20, 1866, and in the American Journal of 
Science for November 1866 {;vide Zool. Record for 1866, pp. 
637 & 644). 
Crivelli, Balsamo-. Di alcuni organi speciali osservati in una 
spugna {Acanthella acuta). Rendic. R. Istit. Lombardo, 
vol. hi. Decembre 1866, pp. 333-336, and a plate. 
Crivelli, Balsamo-, e Maggi. Sulla derivazione del Bacterium 
termOy Duj., e del Vibrio bacillus , Duj., dei granuli vitellini 
delP novo de polio. Rend. R. 1st. Lomb. vol. i. 1868, 
pp. 399, 406. 
. Sulla produzione del Bacterium termOj Duj., e del 
Vibrio bacillus, Duj. Ibid. pp. 288-303. . 
Davaine, C. Recherches physiologiques et pathologiques sur 
les Bacteries. Compt. Rend. Ixvi. pp. 499-503 : March 
1868. 
Donitz, W. Ueber Noctiluca miliaris, Sur. Reichert u. Du 
Bois-Reymond’s Archiv, 1868 (May), pp. 137-149, tab. 4. 
— — . Ueber Noctiluca miliaris, Sur. Erwiderung an Hrn. 
Prof. V. Cams. Ibid. (January 1869), pp. 750-754. 
Ebeniiard, Ernst. Beitrag zur Lehre von der geschlechtlichen 
Fortpflanzung der Infusorien. Zeitschr. f. wissensch. Zoo- 
logie. Band xviii. pp. 120-123 : Dec. 27, 1867. Translated 
in Q. J. Mic. Sci. vol. viii. pp. 154-158. 
Records some observations on the development of Bursaria 
truncatella [vide special part) . 
Ehrenberg, C. G. Weitere Entwicklung des Hyalonema lusi- 
tanicum und der Spongiaceen. Monatsber. Ak. Wiss. 
Berl. 1867, pp. 843-857. 
Professor Ehrenberg, at the close of this paper, publishes 
a short notice of fourteen Marine Sponges, taken from his 
note-book of 1823. The descriptions were taken from the 
living forms. 
Focke, G. W. Ueber schalenlose Radiolarien des siissen 
Wassers. Zeitschr. f. wissensch. Zoologie, Band xviii. 1868, 
pp. 345-358, Taf. 25. 
Describes some very remarkable freshwater Rarliolaria; but 
the forms are simply referred to as No. 1, No. 2, and No. 3, 
without being named. 
Gray, Dr. J. E. Observations on Sponges, and on their ar- 
