171] PROTEOCEPHALIDAE—LA RUE 171 



PROTEOCEPHALUS SAGITTUS (Grimm) 



(?)1819: Botkriocephalus barbatulae Rudolphi 1819:144 



(?)1850: Botkriocephalus barbatulae Diesing 1850:608 



1872: Taenia sagitta Grimm 1872:240-243 



1878 : Taenia sagittata von Linstow 1878 :260 



1891: Taenia sagittata Monticelli 1891:169 



1896: Ichthyotaenia sagittata Riggenbach 1896:267 



1909 : Ichthyotaenia sagitta Luhe 1909 :33 



1911 : Proteocephalus sagittus La Rue 1911 :475 



Specific Diagnosis: Strobila small, as much as 45 mm. long by 1 

 mm. broad. Head thick, ending in an unarmed point. Suckers four, 

 in pairs on the basal part of the head. Suckers transversely elongated 

 and heavily muscled. Neck as much as 12 mm. long by 0.5 mm. broad. 

 (Probably many young proglottids were overlooked in this exception- 

 ally long neck.) Proglottids few. Youngest proglottids about quad- 

 rate, older ones longer. Last eight proglottids 1.4-1.5 mm. long by 1 

 mm. broad by 0.3 mm. thick. Last proglottid always rounded poste- 

 riorly. Cirrus-pouch large and clubshaped. Cirrus quite thick. Uterus 

 with uterine pouches, number unknown. Genital pore situated near 

 middle of lateral margin of proglottid. 



Habitat: In intestine of Cobitis barbatula (type host), Peters- 

 burg (type locality) and Province of Novgorod. 



Grimm (1872:240-243) described some cestodes which he had col- 

 lected from the intestines of Cobitis barbatula at Petersburg and in the 

 province of Novgorod. These he named Taenia sagitta. He called at- 

 tention to the fact that Rudolphi (1819:144) had proposed the name 

 Botkriocephalus barbatulae for some cestodes from Cobitis barbatula. 

 Rudolphi gave no diagnosis nor description hence it is not possible to 

 determine the genus to which his specimens belonged. Grimm also 

 called attention to Diesing's (1850:608) reference to Botkriocephalus 

 barbatulae and that Diesing gave no description of the form. Von 

 Linstow (1878:260) listed Taenia sagittata Grimm (for sagitta) as a 

 parasite of Cobitis barbatula. Monticelli (1891:169) included Taenia 

 sagittata (for sagitta) in a list of cestode species parasitic in fish. Rig- 

 genbach (1896:267) included Ichthyotaenia sagittata (Grimm) in a list 

 of Ichthyotaenia. Luhe (1909:33) gave a very short diagnosis of Ich- 

 tkyotacnia sagitta (Grimm) which he apparently derived from Grimm's 

 (1872) paper. La Rue (1911:475) included this species in a list of 

 Proteocephalus species. 



