PROCEEDINGS OF THE NATIONAL MUSEUM 



TOO. G7 



and the greatest width measured from the cuticle on the dorsal sur- 

 face to the cuticle of the ventral surface of the head was found to vary 

 from 107 to 144[j, in different specimens. The surface of the mouth 

 capsule as observed in a lateral view of the worm, presents a num- 

 ber of sutures that divide it into five sections (fig. 2). Two sutures 



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"Figs. 1-3. — Uncinaria lotoris, new species. 1, Anterior end of worm viewed from 

 TEH SIDE. 2, Surface view of the anterior end of the worm, from the side, show- 

 ing THE sutures. 3, Posterior end of female, ai, anus ; d., dorsal ray ; e. d., 



BXTHRNO-DORSAL RAY ; 6. I., EXTERNO-LATERAL RAY ; ffub., GUBERNACULUM ; ?. V., LATERO- 

 VT3NTRAL RAY ; m. I., MEDIO-LATERAL RAY ; p. L, POSTERO-LATERAL RAY ; Sp., SPICUI^ ; 

 V. v., VENTRO-VENTRAL BAY 



are transverse, the more cephalad suture being longer and extending 

 across the anterior portion of the capsule, the other suture extending 

 vacross the posterior portion of the capsule. Two sutures are longi- 

 tudinal, extending from the anterior wall of the capsule to the more 

 cephalad of the transverse sutures. The latter is irrecfular in shape 



