XTTI. THE PLATED NEMATOGNATHS. 1 



By Marion Durbin Ellis. 



In the following pages are given a list of all known species of the 

 Callichthyidse, the "Sopra Senas," "Cascaduras," or "Hassars" as 

 they are called by the natives of South America, and lists of the 

 specimens at present in the collections of the Carnegie Museum and of 

 the Indiana University. 



The specimens in the Carnegie Museum were acquired through 

 purchase from Mr. J. D. Anisits, who collected in Paraguay; from the 

 expeditions of the Indiana University and Carnegie Museum to 

 Guiana; and from the extended expedition of the Carnegie Museum 

 through various parts of Brazil, Uruguay, Argentina, and Paraguay. 

 The collections acquired from Dr. Anisits were enumerated in the 

 Annals of the Carnegie Museum, Vol. II, pp. 1 10-157. An 

 account of the Guiana Expedition is given in Vol. V of the Memoirs- 

 The expedition to Central South American is outlined in Volume VII 

 of the Annals, pp. 285-;, 14. 



I have given a reference to the first description of each species, 

 and, if this is incomplete, a reference to a better one. 2 



Family CALLICHTHYID.E:. 



Callichthyoidei Bleeker, Nederl. Tijdschr. Dierk., I, 1863, 82. 

 Siluridce proterapodes Gunther, Cat. Fish. Brit. Mus., V, 1864, 4. Hy poslomatina 

 in part. 



1 Contributions from the Zoological Laboratory of Indiana University, under 

 the direction of C. H. Eigenmann, No. 123. 



2 After this paper had been finished, and before it could be published, Mr. C. T. 

 Regan issued a revision of the genus Corydoras (inclusive of Osteogaster) with a list 

 of the specimens in the British Museum {Ann. and Mag. Nat. Hist., (8) X., 209-220, 

 Aug., 1912), and Mr. Alipio de Miranda Ribeiro published Volume IV of his 

 "Fauna Brasiliense, Peixes," and an account among other things of the Callich- 

 thyidce in the "Historia Natural" of the "Commissao de Linhas Telegraphicas 

 Estrategicas de Matto-Grosso ao Amazonas," Sept., 1912. The publication of 

 these papers necessitated a partial revision of Mrs. Ellis' manuscript, which was 

 done by Dr. Eigenmann. It is worthy of note that Regan's list contains fourteen 

 species represented by seventy-four specimens. The collections examined by Mrs. 

 Ellis contain sixteen species represented by over six hundred specimens. An ad- 

 ditional species, Hoplostemum tnagdalencc Eigenmann, is described in the appendix 

 to this paper. — Editor. 



384 



