Bull. U. S. F. C. 1899. (To face page 492.) 



Plate XVI. 



203 



199. Spiroptera pcctinifer sp. nov.. contliraud. Ventral view of pos- 

 terior end of male. X 300. rA. Chitiiious toothed filate. 

 j^oTE. — There were ionr more group.-; of three papilla; each 

 seen on the left side anterior to those .shown in the lisnre. 



■iiio. Dncvitu sphxrocephala Dujardin. from Aiiiiam:r atiirid. Anterior 

 end, optical seetion. x tj.^. 



201. Posterior end. ,- il.^. 



202. Embrvoske,.. .led in nterns. x SOO. 



203. Diinillif hiuiis Dujardin, from LcpUirrphnluji nmnir. Lateral view 



of hca<i. oplii:al section, x 100. 



204. Posterior Ventral view of s^tme. x 100. 



