504 



PROF. C. L. BOULENGER ON FILARIID 



proper systematic position ; 1 have, therefore, retained it in the 

 genua FilmHa In some respects it appears allied to certain 



species known from the muscular system of Mammals, e. g. 

 Filaria scapiceps Leidy (Hall, 1916). 



Specific diagnosis. — Filaria s.l.: Body comparatively short 

 and thick, tapering nearly equally at both extremities. 



Cuticle finely striated transversely. 



Text-figure 12. 



Filaria aramidis, sp. n. 



A. Anterior extremity; B. Posterior extremity. Lateral view. X 75. 

 Lettering as in the preceding text-figures, ov., loop of ovary. 



Head rounded, bearing four very small submedian papillae ; 

 lateral papillie not seen. 



CEsophagus narrow and simple, 2. e., not divided into anterior 

 and posterior regions. Nerve-ring close to the anterior extremity. 



Female 25 mm. in length, with a maximum breadth of about 

 1 mm. Width of head 0*2 mm. The oesophagus has a length of 

 1-1 mm. Posterior extremity I'ounded ; position of anus uncei^tain, 

 about 0-15 mm, from the end of the body. 



