249] PROTEOCEPHALIDAE—LA RUE 249 



1 .) Os. . . . Collum nullum. Corpus depressum augustum, articulis su- 



premis angustissimis, posterioribus quadrangularibus. Aperturae genitalium .... 

 Longit. fragmenti 18", latit. capit. 24" '. 



"Habitaculum. Boa Constrictor: ex America meridionali, in intestinis (Ger- 

 rard)." 



A comparison of the diagnosis just quoted and the earlier one by 

 Diesing (1850:511) leaves no doubt that the two diagnoses concerned 

 the same species, namely, Crepidobothrium gerrardii. Liihe (1898:652) 

 included this species in a list of Ichthyotaenia from snakes. He gave 

 no reason for considering it a member of this genus. Fuhrmann (1899: 

 864) in a footnote made this statement concerning this species: "Liihe, 

 M., Oochoristica nov. gen. Taeniadarum. (Zoolog. Anz. 1898. No. 576) 

 giebt an, dass T. Gerrardii (Baird) in das Genus Ichthyotaenia gehorej 

 dies ist aber wie mir Prof. Monticelli mitteilte und wie ich mich selbst 

 an den von ihm nach den originalen angefertigen Zeichnungen uber- 

 zeugen konnte, keineswegs der Fall. Es gehort diese Form in ein beson- 

 deres Genus, das Prof. Monticelli demnachst unter dem Namen Crepi- 

 bothrium publizieren wird." During the same year Monticelli (1899: 

 9-25) made a report, accompanied by drawings, upon the type material 

 of this species which was in the British Museum. He also studied some 

 material which had been sent to him by Prof. Fr. Bell. As a result of 

 this study he erected the genus Crepidobothrium for Baird 's species 

 alone. Liihe (1899:525) in a footnote discussed the position of this 

 species which he still maintained belonged to the genus Ichthyotaenia. 

 His ground for this belief was that the head and suckers which are 

 different from those of other Ichthyotaenia constitute only a specific 

 difference. He stated that the name Crepibothrium (Fuhrmann 1899) 

 was a nomen nudum. He had not seen Monticelli 's article and so was 

 in no position to judge Monticelli 's work. 



Shipley (1905:101) made the following report of this species: 

 "Taenia racemosa Rud. Diesing, Syst. Helm. I. p. 511. Many speci- 

 mens from Eunectes murinus Wagl., it has also been described from the 

 intestine of Bothrops jararacca Wagl." Thanks to Professor H. B. 

 Ward who secured them for study, the writer has been able to examine 

 some of Shipley's specimens from the host Eunectes murinus. They 

 were probably from the same lot which Shipley recorded in the above 

 quotation. They proved to belong to the species Crepidobothrium ger- 

 rardii (Baird). Smith (1908) found some cestodes in an anaconda, 

 Eunectes murinus. He described them under the name Taenia eunectes. 



" 1 ) "Each of them large, round and having on one side a strong ridge" 

 Baird 1. c." (Baird :i86o or 1861). 



