76 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 92 



Netz, Willy 



1917. Das Skelett des Flusskrebses (Potanwbius astacus Leach). Disserta- 

 tion. 104 pp., 38 figs. Marburg. 

 Pearson, J. 



1908. Cancer pagurus. Mem. Liverpool Marine Biol. Committee, vol. 16, 



209 pp., 13 pis. 

 Ratkbun, M. J. 



1930. The cancroid crabs of America, of the families Euryalidae, Portunidae, 

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 Raymond, P. E. 



1920. The appendages, anatomy, and relationships of trilobites. Mem. Con- 

 necticut Acad. Arts and Sci., vol. 7, 169 pp., 11 pis. 

 Schmidt, Walter 



1915. Die Muskulatur von Astacus fliiviafilis (Potainobiiis astacus L.) Ein 

 Beitrag zur Morphologic der Decapoden. Zeitschr. wiss. Zool., vol. 

 113, no. 2, pp. 165-251, 26 figs. 

 Smith, G., Woods, H., Shipley, A. E., Warburton, C, Thompson, D'A. W. 



1909. Crustacea and arachnids. The Cambridge Natural History, vol. 4. 

 Snodgrass, R. E. 



1927. Morphology and mechanism of the insect thorax. Smithsonian Misc. 

 Coll., vol. 80, no. I, 108 pp., 44 figs. 



1928. Morphology and evolution of the insect head and its appendages. 



Smithsonian Misc. Coll., vol. 81, no. 3, 158 pp., 57 figs. 



1929. The thoracic mechanism of a grasshopper and its antecedents. Smith- 



sonian Misc. Coll., vol. 82, no. 2, iii pp., 54 figs. 

 1932. Evolution of the insect head and the organs of feeding. Smithsonian 



Report for 1931, pp. 443-489, 25 figs. 

 Williams, Leonard W. 



1907. The stomach of the lobster and the food of larval lobsters. State of 



Rhode Island and Providence Plantations. 37th Ann. Rep. Comm. 



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