237] PROTEOCEPHALIDAE—LA RUE 237 



ence in the number of testes and in the number of uterine outpocketings. 

 The hosts and geographical distribution are also widely different. 



It varies from 0. marenzelleri in having a much smaller head, 

 smaller suckers and in the lesser prominence of the same, in its smaller 

 proglottids and in its smaller number of testes. The relations of the 

 cirrus and cirrus-sheath are quite different. The fact that the vagina 

 lies usually posterior to the cirrus-pouch in 0. marenzelleri constitutes 

 a marked difference. The shape of the ovaries is somewhat different. 

 In 0. marenzelleri the marked bending of the vagina in its course to 

 the middle of the proglottid is very unlike the condition in this species, 

 0. calmettei is larger than 0. trimeresuri. It has a larger head, larger 

 suckers and more than twice as many testes. The relations of the 

 unprotruded cirrus and the cirrus-pouch are much alike in the two 

 species. 0. calmettei is so much larger than 0. perspicua, 0. nattereri 

 or 0. pigmentata that any possibility of confusion with them is pre- 

 cluded. It is likewise much larger than 0. filaroides and 0. lonnhergiii 

 which occur in amphibians. 0. calmettei most nearly resembles 0. 

 grandis, 0. ma,renzelleri and 0. trimeresuri which likewise occur in the 

 Crotalinae. 



OPHIOTAENIA PUNIC A (Cholodkovski) 

 [Figs. 153, 187, 188] 

 Taenia punica Cholodkovski 1908:418-20 



1908 

 1910 

 1911 



Proteocephalus punicus Hall 1910:148 



Ophiotaenia punica La Rue 1911 :481 



Specific Diagnosis: Characters of genus. Length as much as 10 

 cm. Breadth up to 2.75 mm. Head large, 1.5 mm. broad, unarmed, 

 somewhat tetragonal in shape. Suckers four, large, round, 0.7 mm. in 

 maximum diameter. Sucker musculature heavier on inner half. Necft 

 short. Segmentation not evident. Proglottids attached by full width. 

 First proglottids broader than long, older ones quadrate and finally 

 longer than broad. The genital opening alternates irregularly, is situate 

 near middle of proglottid margin. Testes very numerous, about 200, 

 situated in two well defined lateral fields. Cirrus-pouch slender, ex- 

 tending 1/4 to Ys across the breadth of the proglottid. Lobes of ovary 

 long, slender, rough in outline, connected by a long slender mid-piece. 

 Vitellaria lateral, composed of small follicles. Uterus median. Eggs 

 not observed. 



Cholodkovski (1908:418-420) reported this species from a dog in 

 Tunis (Island of Dscherba). Since this is a peculiar host in which to 



