NEMATOCYSTS OF MICROSTOMA. 277 



Martin, C. H. 



'08 The Nematocysts of Turbellaria. Quart. Journ. Mic. Sc., N. S., 206, 



Vol. 52, Part 2. 

 Oersted, A. S. 



'44 Plattwurmen. Copenhagen. 

 Schneider, K. C. 



'oo Mittheilungen iiber Siphonophoren: V, Nesselzellen. Arb. jZool. Inst. 

 Wien., Tom. XII. 



