xcviii GENERAL SUMMARY OF SCIENTIFIC AND 



larvae pass directly into the fish. They pierce the intestine, 

 and encyst themselves on the outside of the wall of that 

 organ. During their course through the intestine they in- 

 crease in size, because they find suitable nourishment there. 

 Further remarks on this subject may be found in the transla- 

 tion of the article in the Annals and Magazine of Natural 

 History. 



Coming to the higher Avorms, we have the beautiful and 

 elaborate work of the late Professor Claparede, which has 

 been noticed in its place farther on in the Record. 



The most important works of the year on Crustacea are 

 those of Alphonse Milne-Edwards and Professor Owen, on 

 the anatomy of the king-crab, and by Professor S. I. Smith 

 on the metamorphosis of the American lobster. The blind 

 Crustacea have been described by A. S. Packard, Jr., from 

 caves in Indiana, The Ghalleriger party have dredged from 

 the depths of the Atlantic several interesting Decapod 

 Crustacea, especially those allied to Astacus, and among 

 the lower Crustacea a gigantic Amphipod allied to the pe- 

 lagic forms Ilyperia and Phronirna. The eyes of this an- 

 imal are very remarkable, extending as two enormous fa- 

 ceted lobes on all the anterior part of the body, like the 

 eyes oi^glina among the Trilobites. The Cyami, or whale- 

 lice, have been revised by Dr. Liitken, and new species de- 

 scribed by him and Mr. Dall. The naked barnacles, or Wii- 

 zocephala., have been studied by M. Girard from a develop- 

 mental and anatomical point of view. M. Hesse has con- 

 tinued his accounts of the Copepods and other Crustacea 

 from the coast of France, and Mr. Brady his notices of En- 

 glish Entomostraca. 



The literature of Entomology^ always so extensive com- 

 pared with that of other departments of natural history, 

 shows that special students have been as busy as ever, while 

 several papers of much general interest have appeared dur- 

 ing the year. Numerous descriptive papers from the hands 

 of Le Conte, Scudder, Grote, Thomas, Hagen, Henry Edwards, 

 Cresson, Riley, Packard, and others, refer to Anierican forms ; 

 while notes and papers relative to the habits of insects may 

 be found in the Canadian Entomologist^ and in the state en- 

 tomological reports of Riley, Le Baron, and Packard, for the 

 states of Missouri, Illinois, and Massachusetts respectively ; 



