404 Annals of the Carnegie Museum. 



9893 I. U. M. One, cotype, 53 mm. Aregua Laguna, Ypacari, June, 



1901. Coll. J. D. Anisits. 

 10201 I. U. M. Five, 28 to 39 mm. Villa Rica. Coll. J. D. Anisits. 

 954a C. M. One, Aguadas near Arroyo Trementina. Coll. J. D. 



Anisits. 



3478 C. M. Two, 41 and 44 mm., Sao Francisco, June 10, 1909. Coll. 

 Haseman. 



3479 C. M. Sixteen, 42 to 69 mm. Sapucay, April 2 and 5, 1909. 

 Coll. Haseman. 



3480 C. M. Thirteen, 34 to 70 mm. Urucum Mts., Corumba, May 2, 

 1909. Coll. Haseman. 



3481 C. M. One, 49 mm., Puerto Suarez, E. Bolivia. Coll. Stein- 

 bach. 



3482 C. M. Four, 40 to 50 mm. Banhurie S. P., creek of Rio Tiete. 

 Coll. Haseman. 



3483 C. M. One, 51 mm. Cacequy, Jan. 31, 1909. Coll. Haseman. 



3484 CM. One, 40 mm. Corumba, April 27, 1909. Coll. Haseman. 



3485 C. M. Eleven, 41 to 61 mm. Salto das Cruzes, Rio Tiete, 

 Sept. 22, 1908. Coll. Haseman. 



3496 CM. Two, 55 and 59 mm. Rio de Boa Ventura, June 16, 1909. 



24. Corydoras melanotaenia Regan. 

 Corydoras melanotania Regan, Ann. & Mag. Nat. Hist. (8), X, 1912, 217 (Honda). 



25. Corydoras macrosteus Regan. 



Corydoras macrosteus Regan, Ann. & Mag. Nat. Hist. (8), X, 1912, 219 (Rio Pirac- 

 icala, Sao Paulo, Brazil). 



26. Corydoras aeneus (Gill). 



Hoplosoma ceneum Gill, Ann. Lye. Nat. Hist. New York, VI, 1858, 43 (Trinidad, 



W. I.). 

 (?) Corydoras venezuelanus von Ihering, Rev. Mus. Paulista, VIII, 1910, 383 (Rio 



Cabriale, Venezuela). 



11301 I. U. Three, 60 to 80 mm. Trinidad, W. I. 



Gill's original description of H. ceneum and the description of C. 

 venezuelanus differ in a few particulars. H. ceneum is said to be, 

 "greatest height rather less than a fifth in the total length," while 

 C. venezuelanus is given, greatest height 2.66 in the length to the base 

 of the caudal. The interorbital is less than snout in ceneus and slightly 



