100 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



Probably similar to that A. galli (p. 82). 

 Europe (Germany (Museum Berlin)) and Asia 



Life history.- 

 Distribution. 

 (India). 



ASCARIDIA STYPHLOCERCA (Stossich, 1904) Railliet and Henry, 1914 



Synonyms. — Heterakis styphlocerca Stossich, 1904. 



Hosts. — This worm was described from a domestic bird ( u Un 

 volatile domestico") with no indication as to which bird is meant. 

 The present writer has identified it from Gallus gallus. 



Location. — Intestine. 



Morphology. — Ascaridia (p. 77). Worms 90 to 100 mm. long, 

 according to Stossich, somewhat attenuated toward the extremities, 

 and with a transversely striated cuticle. 



Pigs. 140-142. — 140, Ascaridia strelnikowi. a, Head ; b, male tail. After Skrjabin, 

 1916. 141, Ascaridia stroma. Male tail. After Linstow, 1899. 142, Ascaridia 

 styphlocerca. male tail. after stossich, 1904 



Male with caudal alae slightly developed and showing small round 

 granulations. (Fig. 142.) Ventral sucker large, almost circular, with 

 strong wall interrupted on the posterior margin by a small papilla. 

 Eight pairs of caudal papillae, large and fungiform ; of these 2 pairs 

 are in the region of the sucker, 1 pair preanal and postsuctorial, 

 and 5 pairs postanal. Stossich figures 1 unpaired papilla on the 

 right side between the papillae of the last 2 pairs on that side; he 

 refers to it as on the left side. He also refers to an asymmetrical 

 papilla in connection with the first preanal pair; his figure sug- 

 gests that there is a median, but apparently symmetrical papilla 

 between the members of the last postanal pair. 



The single male specimen from South Africa, examined by the 

 present writer, was very like that figured by Stossich except that 

 the median papilla figured between the members of the most pos- 

 terior pair was absent and the second from posterior end, figured 



