NO. 2258. TAEKIOID CESTODES OF U0G8 AND CATS— HALL. 



69 



the segment. There are apparently two or three vasa deferentia on 

 each side of the segment (according to the illustration) and they ex- 

 tend in the median field parallel to the longitudinal excretory canals 

 and just median of the canals. The cirrus pouch is large, 250 to 

 260 [). long by 120 to 130 jjl wide, and piriform, and extends across 

 the longitudinal canals into the median field. 



Female genitalia. — Each ovary (fig. 69) is composed of two prin- 

 cipal lobes, which arc irregularly lobate elongated structures press- 

 ing close on each side of the vagina and receptacvilum seminis, those 

 on the median side lying on the convexity of the curve of the vagina 

 and receptaculum seminis and having a roughly crescentic outline. 

 The ovaries lie mostly posterior of the genital pores. The vitelhiriura 

 is a roughly spherical mass lying posterior of the 

 ovary and is smaller than either of the two main 

 ovarian lobes. The shell-gland is very small and is 

 between the vitellarium and the ovary. There is a 

 large receptaculum seminis. Each of the uterine 

 capsules contains only one large egg, 52 to 53 ;;. 

 in diameter. 



nest. — Felis catus {Felis do7nesf/ca). 



Location . — Intestine. 



Locality. — Probably Hungary. 



Life history/. — Unknown. 



Part of the above description is based on von 

 Ratz's illustrations and so depends on the accuracy 

 of the illustrations and the constancy of the fea- 

 tures for its reliability, as noted in the foregoing 

 si^ecie^. 



DIPYLIDIUM TRINCHESEI Railliet, 1893rt. 



-Dipylidium trinchesii Diamare, 



Fig. 70.— D ! p y l I d ut m 

 TRiNCHisEi. .Anteri- 

 or EXTRrMITT OF STRO- 

 PILA. KnI-ARGKD. A^- 

 TF.R Dl.\MARE, 18936. 



Synonym. 

 1892«. 



Specific diagnosis. — Dipylidium: Head (fig. 70) 

 globular, with a relatively large imbutiform rostel- 

 lum, the spherical anterior portion provided with four circlets of 

 about 80 hooks (fig. 71) , the largest hooks being in the anterior circlet 

 and the smallest in the posterior circlet, the largest attaining a length 

 of 36 PL and a width of 47 pi.; the hooks of the first three rows are 

 provided with a distinct handle and guard and a strongly curved 

 blade. The suckers are orbicular and prominent. The neck is short. 

 The entire strobila is very short, attaining a length of about 25 mm. 

 The first segments are rectangular, with rounded margins. The 

 genital primordia appear in the second or third segment and mature 

 genitalia are present in the tenth segment. The mature segments 



