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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 50. 



and that he finds similar ventral and dorsal lines consisting of small 

 nuclei. In the face of Dujardin's statement that the absence of 

 bacillary bands is a specific characteristic, I have left the diagnosis in 

 this form. It is possible that Eberth had another species, distinct 

 from C. annulosa or that Dujardin did not find the typical bacillary 

 structure and that Eberth uses the term "bacillary 

 band " to refer to structures which are not really bacil- 

 lary (i. e. composed of rods). See also C. schmidti. 



Fig. 42.— Capilla- 

 kia annulosa. 

 Female in re- 

 gion OF vulva. 

 Enlarged. Af- 

 ter Eberth, 

 1863. 



TRICHOSOMA MURIS-SYLVATICI Diesing, 1851. 



Synonym. — Trichosoma inuris sylvatici Dujardin, 

 1845, of Diesing, 1851. 



Specific diagnosis. — Cwpillaria (p. 33) : 



Male unlaiown. 



Female 12 to 22 mm. long and. 70 to 80 |jl thick. Head 

 9 to 13 [;l in diameter. Tail transversely truncate. 

 Cuticle transversely striate, with striations at inter- 

 vals of 2 [;.. Vulva 5.6 mm. from the anterior extremity 

 and without appendix. Eggs 55 to 60 [jl long ; opercular 

 plugs large. 



Host. — Apodemus sylvaticus (Mus sylvaticus). 



Location. — (?) Intestine. Dujardin does not give 

 the location. 



Locality. — France (Rennes). 



Dujardin did not apply any name to this species and 

 the name credited to Dujardin by Diesing must be cred- 

 ited to Diesing. I have regarded this name as binomial 

 in intent and have placed the hyphen in the specific 

 name accordingly. In the absence of adequate data re- 

 garding this form I have left the generic name as it 

 stands. 



TRICHOSOMUM MYOXI-NITELAE Diesing, 1851. 



Synonym. — Trichosomum myoxi nitelae Dujardin of 

 Diesing, 1851. 

 Specific diagnosis. — Capillaria (p. 33) : 

 Male unknown. 



Female length (?), 71 ju thick. Tail 44 /n thick, slightly thinned, 

 obtuse. Anal aperture situated laterally in front of the posterior ex- 

 tremity. Eggs lemon-shaped, 58 /* long, longitudinally striate, and 

 with the usual opercular plugs. 



Host. — Eliomys quercinus {Myoxus nitella). 

 Location. — Intestine. 

 Locality. — France (Rennes). 



This species was not named by Dujardin, who descril^ed it, and the 

 name credited to him by Diesing must be credited to Diesing. This 



