Table 2 gives the e^^g sizes talieii from the literature 

 and from the author's measurements of 50 eggs each 

 from the uterus of a formalin-preserved specimen from 

 a dog and from a formalin-preserved fecal sample from 

 a mink. 



Author 

 Present (dog) 

 Present (mink) 

 Balbiani (1870) 

 Blanchard (1889) 

 Leuckart (1876) 



Length 



Width 



64 



68 



42 



44 



64 



44 



Table 2. Ova of the Dioctophymatoidea. Egg measure- 

 ments of Dioctophyma renalc in microns. 



The ova of the other genera of Dioctophymatoidea, 

 namely EustrongyiideH, Hystrichis, and Soboliphyme, all 

 show considerable resemblance to the egg of D. renale 

 in general size and in the pitted cortical layer. The 

 drawings given by Jagerskiold show clear terminal plugs 

 for only a few species of [E. africaniis, E. ignotus, E. 

 perpapillatus, and H. neglectun (Fig. 141 EE-LL)]. The 

 egg of H. acanthocephalicus differs from others of the 

 group in having a network of ridges over the surface 

 instead of the usual small pits (Fig. 141MM). The 

 figures of the egg of Soboliphyme baturiyii Petrov show 

 the pitted cortical and the inner layers of the shell 

 (Fig. 141DD) but show in addition a structure not seen 

 in the egg of D. renale, a plug at either end of the inner 

 shell of such form that the egg, without the cortical layer, 

 would resemble that of Tricluiris. 



Table 3. Ova of the Dioctophymatoidea. Egg measure- 

 ments of the various species. 



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