MYETOPODA COLLECTEt) I^^ DtJTCH NEW GUINEA. 



333 



of body smooth, polished, and narrowed laterally, but only bluntly pointed. Second 

 segment extending laternlly distinctly below the level of the first. Posterior half of 

 segments smooth and shining, but the surface of the anterior half is rather dull. The 

 transverse sulcus is not a sharply defined line as in some species, but a deep 

 groove, which becomes .shallow and obsolete on the dorsal surface. Longitudinal 

 striae numerous ai;d Avell developed on the sides of the segments below the pore, 

 especially on their anterior half; these striae are curved and ibriv or branch at the 



Text-figure 19. 



TriijoninluH Uoss'i, sp. n. A. Auterior eGi)ii]utoiy foot fioni in front. E. Posterior coiuilatory foot. 



anterior end so as to form numerous exceedingly fine lines ; many of the strioe are 

 continued posteriorly as straight lines across the transverse sulcus and hinder part of 

 the segment, but others come to an end at the sulcus. Above the pore, the striae 

 of the anterior half of the segments are represented by very short curved impressions 

 and by punctures, which become fainter and gradually disappear dorsally. Anal 

 segment almost smooth and ending posteriorly in a rather narrow sharply pointed 

 little process projecting some distance beyond the valves; the latter smooth and with 

 a wide and deep groove running along the posterior margin, which has a narrow raised 

 VOL. XX.— ."ART X. No. 2.— June, 19 U. 3 a 



