120 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



Morphology. — Subulura (p. 104) : Body large but slender. Lateral 

 alae present, narrow, finely striated transversely, extending from 

 head end to level of esophageal bulb. Mouth with 6 papillae ; buccal 

 cavity clearly divided into 2 parts, in the second or more posterior 

 are found 3 small rounded teeth. 



Figs. 171-174. — Sdbuluba lutzi. 171, Anterior end. 172, Male tail, 

 ventral view. 173, male tail, lateral view. 174, volva and ove- 

 jector. After Barreto, 1918 



Male 14.5 mm. long by 250/a wide. Esophagus, including bulb, 

 1/10 of total length. Tail short, ending in a point 85/* long. Cloacal 

 aperture 300/* from posterior end. Preanal sucker in form of a 

 longitudinal slit. Caudal alae present. Ten pairs of papillae (fig. 

 175), of which 3 are preanal, 2 adanal, 5 postanal. The caudal 



Fig. 175. — Sdbuluba xoctuae. Male tail. After Seiirat, 1914 



glands open between the second and third pairs of papillae (num- 

 bering from the posterior end). Spicules equal, 700/t long, filiform. 

 Gubernaculum triangular, elongated, prolonged anteriorly by 2 small 

 horns. 



Female slender, 22 mm. long by 380/x wide. Esophagus short, 

 1/14.5 of total length. Tail short (630 M ). Vulva a little anterior to 

 middle of body, at 3/7 of body length. Ovejector posteriorly directed ; 



