ART. 26 



HOOKWORM PROM A RACCOON SCHWARTZ 



and extends from what appears to be a joint in the dorsal wall of 

 the capsule to a corresponding joint in the ventral wall of the cap- 

 sule. The posterior transverse suture extends from what appears to 

 be a joint in the ventral wall of the capsule and runs diagonally 

 cephalad to the dorsal wall of the capsule but does not meet a joint. 

 The sutures are best seen in a surface view of the capsule. They are 

 not superficial grooves, but extend quite deeply into the capsule, 

 and are still visible, in part, in deeper focus (fig. 1). In a lateral 

 view of the mouth capsule the dorsal wall presents a series of narrow 

 lacunae (fig. 1). In dorsal view these spaces appear as a series 

 of circular openings arranged in two rows, one on each side of the 

 dorsal gutter. In most specimens only from four to five openings 



yiomm. 



Fig. 4. — Uncinaria lotoris, new species. Posterior end of male. For lettering, 



SEE previous figures 



can be distinguished on each side of the dorsal gutter. The number 

 of distinguishable openings on each side of the dorsal gutter was 

 found to exceed five in several specimens examined, the maximum 

 number of openings that could be seen on each side being nine. 

 The two ventral teeth are triangular in shape, the apex of the tri- 

 angle being rather sharp. The esophagus is from 558 to T38[j. long 

 by 144 to 198[;. in maximum width. The nerve ring is located at a 

 distance of from 400 to 440;/, from the anterior extremity of the body. 

 The excretor}^ pore is slightly posterior to the nerve ring and the 

 cervical papillae are a little posterior to the excretory pore. 



Male. — The male is from 5.5 to 6 mm. long by 234 to 254[ji. in 

 maximum width. The lateral lobes of the bursa (fig. 4) are a little 



