2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 79 



treniities. Cuticle Avitli distinct transverse striations except in the 

 region surrounding the head. The cuticle about the head is dilated 

 and at its broadest point measures 54/a in width. The cephalic vesicle 



c/r 



o.(?S/rf/77 



C.t< 



V/"- 



FionKES 1-5.- — Aviculariella alcyona, new species. 1, Dorsal view of head of female ; 

 2, lateral view of head of female ; 3, right spicule ; 4, tip of left spicule ; 5, posterior 

 extremit.v of male 



o. o.. Anal opening; c. p., cervical papilla; c. v., cephalic vesicle; ep., epaulet-like 

 cordon; ph., pharynx; I. «., left spicule; pa., papillae; r. s., right spicule 



extends back from the anterior end of the body for a distance of ll^fx. 

 The cervical papillae are located slightly anterior to the union of the 

 pharynx and the anterior division of the esophagus, 163m posterior to 



