NO.U70. THE FAMILY GOMI'nODESMID.E-COOK. 727 



Hypostoma strongly arcuate; rising from each side of the convex 

 median portion is a flattened, oblong process lying against depressions 

 of the lower part of the mentuni. 



Cardo i)resent, transversely oval. 



Mentum broadly triangular, long-pointed in front, very broadly 

 eniargiiiate behind, hirsute. 



Stipes over twice as long as broad (2:5), hirsute. 



Lingual laminae tliree times as long as broad, hirsute. Lingual lobes 

 large. Median lobe not evident. 



First segment three times as broad as long, with anterior and poste- 

 rior margins medianly straight and i)arallel; posterior margin laterally 

 curved forward; anterior corners broadly rounded, the i>osterior nearly 

 a right angle. The segment is much broader tlian tiie liead, very 

 slightly narrower and n()ticea))ly longer than the second segment. 



Segments with dorsal surface smooth, neither granular nor areate. 



Lateral carinfe subapproximate, about one-fourth as wide as the 

 body cavity, inserted about three fourths of tlie distance up; margin 

 abruptly raised and thickened above, especially the lateral; edge 

 blunt, entire; carina^ of anterior segments curved slightly forward, the 

 posterior with posterior corners more and more produced. 



Repugnatorial pores small, dorsal, located in a slight depression of the 

 middle of the thickened margins of the lateral carina? of segments 5, 

 7, 9 to 19, surrounded by a fine raised rim. 



Penultimate segment very short, included between the projecting 

 corners of the antepenultimate. 



Last segment very short, triangular, the apex narrow, truncate or 

 rounded, the whole segment bearing IG setfc, as follows: Two pairs 

 lateral, two pairs marginal, two pairs dorsal; all these ui)on larger or 

 smaller tubercles; one pair apical and one subapical, these last rising 

 from punctations. 



Anal valves with compressed, elevated margins and two setigerous 

 tubercles, the ui)per placed on the outer slope of the raised margin, 

 the lower somewhat removed from it. 



Preanal scale semielliptic-triangular, tricuspidate, the three projec- 

 tions close together, the middle fiat, the others conic, blunt, with pilif 

 erous punctations at apex. 



Sterna with a sharp, transverse, medianly interrupted ridge between 

 the bases of each pair of legs; between the ridges a transverse furrow. 



Sternum of sixth segment of male with a three-cornered process pro- 

 jecting ventrad between the anterior pair of legs. 



Sternum of the fifteenth segment of male with a broadly ensiform 

 process projecting cephalad from between the anterior pair of legs into 

 a socket in the posterior part of the fourteenth. 



Eighteenth segment with the pedigerous lamin* very narrow, espe- 

 cially the posterior, so that the legs project obliquely caudad over the 

 preanal scale. 



Legs of males long and crassate, the dorsal face of the second joint 



