160 TAPEWORMS OF HARES AND RABBITS STILES. VOL.XIX. 



unarmed, about 0.5 min. in diameter; rostellum not observed; neck 

 filiform. Segments 500 to 800 in number, quadrate, broader than long; 

 gravid segments may attain 8 mm. in breadth. Genital pores in about 

 the middle of the margin or in distal half of the margin, irregularly 

 alternate, but for the greater part unilateral. Male organs : Testicles 

 scattered through the entire breadth of the median field ; cirrus pouch 

 0.4 to 0.48 mm. long by 0.14 to 0.16 mm. broad, quite muscular, and con- 

 tains a distinct vesicula semiualis; prostata round. Female organs: 

 Vagina distal of cirrus swelling to an elongate receptaculnm seminis 

 ventral of vas deferens; ovary near median line in pore side of median 

 field: uterus forms a network in median field, but as the ova develop 

 the boundaries of the meshes become quite indistinct. Ova 48 to 60 IJL 

 in diameter; pyriform body 20 // broad by 32 to 44 /.i long. Calcareous 

 bodies become numerous in distal segments. 



JTostf. European wild rabbit (Lcpus cuniculus) in Saxony by Bielun ; ? 

 European hare (Lepus timidus), see p. 155. 



Cotypes.~~Nos. 1377, 1378, U.S.N.M.; collection of Leuckart; Vienna 

 Museum. 



Genus BERTIA, R. Blanchard, 1891. 



1891, Bertia, R. BLANCHARD, Me'm. Soc. zool. France, IV, pp. 186-196. Type, Bertia 

 studeri, R. Blanchard. 



Provisional diagnosis. Anoplocephaliuae, with segments broader than 

 long. Genital pores regularly or irregularly alternate. Uterus (in all 

 cases ?) a transverse tube with proximal and distal egg pouches ; geni- 

 tal canals pass dorsally of dorsal and ventral canal and lateral nerve 

 trunk, but in the two cases at least ventrally of dorsal longitudinal 

 nerve; distinct prostatic gland wanting. Dorsal canal dorsal to dorso- 

 lateral of ventral canal. Egg with well-developed pyriform body. 

 Calcareous corpuscles present or absent. Hosts: Primates and rodents. 



Type.B. studeri, K. Blanchard, 1891. 



Two years prior to the publication of the genus Andrya by Eailliet, 

 R. Blauchard, in 1891, proposed the genus Bertia for anoplocephaline 

 cestodes with alternate genital pores, taking B. studeri from Antliro- 

 popithecus troglodytes as type of the genus; as second species of the 

 genus he described B. satyri. 



Unfortunately, on account of paucity of material, Blanchard was 

 unable to give the anatomy of the type species, so that the generic 

 diagnosis was based chiefly upon external characters. His original 

 diagnosis reads as follows: 



Caput crassum, subsphaerieum, rostro aculeisque carens, acetabulis ellipticis, in 

 dua paria valde distautia dispositis. Collum breve, propre tarn larguni quam caput. 

 Corpus e permultis annulis brevissiinis latisque, imbricatis, constans. Pori geni- 

 tales raarginales, tenuissimi, ab uno annulo ad alterum plus minus regulariter alter- 

 nantes. In anuulo permaturo, ova in plures fasciculos regulares, transverse dis- 

 positus, collecta. Oncosphaera pyriforme apparatu circumdata. Involutio ignota. 



From Blanchard's descriptions of the species the following may be 

 taken as provisional specific diagnoses. 



