378 0. T. Sherman — Spectrum of Nova A ndromedce. 



Simultaneously with these parasites a sac of protoplasm, 

 measuring onl*>' y^ z ", and containing ten minute, scarlet to dark 

 red bodies, was expelled. It seamed to come from near the 

 center of the forward part of the body, but was not connected 

 with the "eyes," as these remained intact. This sac remained 

 motionless near the Rotifer for an hour, the scarlet bodies con- 

 tinuing in incessant motion during that time, but no change of 

 anj' kind taking place. I have been unable to determine the 

 nature of this sac or the contained bodies, and should be glad of 

 any information as to its probable character. 



The parasites measured about jj ? ", exclusive of the cilia, 

 whose length more than equalled the diameter of the body. I 

 believe them to have come from some one of those cavities of 

 the Rotifer's body which are filled with clear, rather thin fluid, 

 perhaps from the stomach, but think it unlikely they can have 

 come from the intestinal canal, because of their extreme fra- 

 gility, and of the very long investing cilia, making the total 

 size too great for such confined quarters. 



The characteristics above noted bring this form within the 

 genus Anopbphrya, if we except the inconspicuousness of the 

 endoplasm, supposing it present, but prevent its identification 

 with any specific form there included, that to which it most 

 nearly approaches being A. socialis, described by Dr. Leidy, 

 under the name of Leucophrys socialis, as present in the fresh- 

 water Polyzoon, Urnatella gracilis. From A. socialis it differs, 

 however, in point of size, being but one-sixth that of the latter; 

 in not having the cuticle striate, and in the superior length of 

 its cilia. 



I propose to name this new species Anoplophrya Notei. 



Briefly stated, the specific characteristics of this form are as 

 follows : body globose or ovate, variably clothed with cilia 

 more than equalling its length; endoplast undetected; con- 

 tractile vesicle small ; length, -gko"- Hab., endoparasitic of 

 Noteus. 



Art. L. — The Spectrum of Nova Andromedce ; by O. T. 

 Sherman. 



When the telegram announcing the outburst in the nebula 

 of Andromeda arrived, the equatorial of the Yale Observa- 

 tory was in use following the spectra of y Cassiopeias and 

 /? Lyras. For some time past the astronomer had been engaged 

 upon them and was beginning to feel sufficient confidence to 

 commence the record. This practice is of more than apparent 

 importance as it underlies the whole work with the nebula. As 



