NEW TKEMATODE FROM LITTLE BROWN BAT — MACY 323 



immediately surrounding genital pore with minute radiating lines, 

 thus resembling a small genital sucker. This character, however, is 

 more evident in some examples than in others. Ovary oval to 

 pyriform, entire, 0.071 (0.06 0.082) mm long and 0.072 (0.06, 0.063) 

 mm wide, situated on right side of mid line of body and at level of 

 ventral sucker and testes. Seminal receptacle posterior to ventral 

 sucker, 0.035 (0.034) mm in diameter. Vitellaria consisting of coarse 

 follicles, fields reaching from testes to oral sucker, arranged either in 

 slightly separated bilateral groups or in a single field entirely across 

 the body dorsal to the pharynx. Uterus extensive, filling posterior 

 two-thirds of body. Eggs 0.018 to 0.02 mm long and 0.011 to 0.012 

 mm wide. Excretory bladder V-shaped. 



Host. — My Otis lucifugus (LeConte). 



Location. — Intestine. 



Locality. — St. Peter, Minn. 



Specimens. — Type, U.S.N.M. no. 8947; paratypes in author's 

 collection. 



KEY TO THE GENERA OF PLEUROGENETINAE 



1 . Ceca long, uterus usually both post- and pre-acetabular 2 



Ceca short, uterus postacetabular 4 



2. Genital pore marginal and pre-acetabular Pleurogenes Looss (1896)' 



Genital pore at side of acetabulum 3 



Genital pore somewhat lateral, pre-acetabular. 



Loxogenes, in part (see KruU, 1933) 



3. Cirrus sac club-shaped, extending around acetabulum; acetabulum twice as 



large as oral sucker Parabascus Looss (1907) 



Cirrus sac oval; suckers subequal Postorchigenes Tubangui (1928) 



4. Genital pore marginal 5 



Genital pore not marginal 8 



5. Genital pore pretesticular 7 



Genital pore posttesticular 6 



6. Genital pore pre-acetabular Prosotocus Looss (1899) 



Genital pore postacetabular Brandesia Stossich (1899) 



7. Ovary postacetabular Cryptotrema Ozaki (1926) 



Ovary pre-acetabular Pleurogenoides Travassos (1921b) 



8. Genital pore lateral to acetabulum Limatulum. Travassos (1921b) 



Genital pore not lateral to acetabulum 9 



9. Genital pore at posterior tip of pharynx and not in vicinity of acetabulum, 



Phaneropsolus Looss (1899) 

 Genital pore closer to acetabulum than to pharynx 10 



10. Acetabulum equatorial or postequatorial. 



Loxogenes, in part, Stafford (1905) 

 Acetabulum pre-equatorial 11 



11. Testes and ovary lobed; ovary on same side of acetabulum as cirrus sac. 



Mosesia Travassos (1928) 

 Testes and ovary entire; ovary on opposite side of acetabulum to cirrus sac. 



Qlyptoporus, new genus 



The long ceca of Loxogenes bicolor Krull (1933) appear to me to be 

 sufficiently unique in this group to require a division of the genus on 

 that character. 



