NO. 6 ANNELIDA, ONYCHOPHORA, AND ARTHROPODA SNODGRASS 1^7 



SCHLIEPER, C. 



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1936. Trilobita, Xiphosura, Acarina. Eine morphologische Untersuchungen 

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SCLATER, W. L. 



1888. On the early stages of the development of a South American species 

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 Sedgwick, A. 



1884. On the origin of metameric segmentation and some other morpho- 



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1886. The development of the cape species of Peripatus. Part II. Segmen- 



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1887. The development of the cape species of Peripatus. Part III. The 



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1888. The development of the cape species of Peripatus. Part IV. The 



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1888, 1889. On the development of Peripatus Novae-Zealandiae. Quart. 

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SiLVESTRI, F. 



1933. Sulle appendici del capo degli "Japygidae" (Thysanura entotropha) 



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7 figs. 

 Snodgrass, R. E. 



1933. Morphology of the insect abdomen. Part II. The genital ducts and 



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58 figs. 

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