468 PROCEEDINGS OF THE NATIONAL MUSEUM. 



CyliocyrtuH asper. 



Fig. 3a. Last tbreo segments, posterior view. 



3/a SairK!, ventral view. 



3c. Carina of segment 15, showing the repngnatorial ])ore. 



3d. Head and iirst three segmouts, lateral view. 



Pl.ATK XXXI. 



Sj^hariodesmiis mexicanu8. 



Fig. la. Head, antenna and first seven siigments, lateral view. 



1ft. Normal leg. 



Ic. A segment, jjosterior view. 



Id. Head and first four segnnnts, anterior view. 



le. A segment from the middle oC the hody, lateral view. 



If. Antenna. 



1(/. Copulatory legs, ]»osterior view, 



l/i. .Same, lateral view. 



It. Same, anterior vii^w. 



1/. Last six segments, lateral view. 



Ik. Last three segments, posterior view. 



CyclodcHmuH h ubbarclii. 



2a. Head and first fonr segments, anterior view. 



2b. Head and nine anterior segments, lateral view. 



2c. Antenna. 



2d. A segment, lateral view, 



2f. T^ast two segments, posterior view. 



2/'. Last foiii' segments, lateral view. 



2ij. A segment, jiosterior view. 



Platk XXXII. 



VesmonuH earlei. 



Fig. Iff. The entire animal, coiled into a sphere, lateral view. 



lb. Head and first eight segments of extended animal. 



Ic. Antenna. 



Id. Posterior view of segment from middle of body. 



le. Lateral view of same, showing location of deep cavity. 



If. Head and first fonr segments, anterior-dorsal view. 



Ig. Seventh segment, vc^ntriil view, shosving the copulatory legs in Hitn. 



Ih. Copnlatory legs, anterior view, 



li. Same, posterior view. 



Ij. Same, mesial view. 



Ik. Same, lateral view. 



11. Normal leg. 



Im. Segments 16 to 20, A'cntral view. 



In. Segments 17 to 20, posterior view. 



DesmoniiH 2>iidicu». 



2a. Last fonr segments, lateral view. 



2b. Segment from middle of body, lateral view. 



