EIGENMANN: THE PYGIDIID^E, A FAMILY OF SOUTH AMERICAN CATFISHES. 321 



not prolonged. Lateral band above middle of sides; back and sides with dark 

 reticulations on a lighter background. 



40. Pygidium latistriatum Eigenmann. (Plate XLVIII, fig. 4.) 

 Pygidium latistriatum Eigenmann, Proc. Am. Philos. Soc, LVI, Jan., 1918, p. 090. 

 74,50, C. M., type. 40 mm. Quebrada de Pinchote, Santander. Gonzales. 



Head 8 mm., length to base of caudal 39 mm. ; width of head mm., interocular 

 2.5 mm., eye a little in front of the middle; distance from snout to origin of dorsal 

 23 mm., to its last ray 27 mm.; distance between origin of dorsal and base of middle 

 caudal rays 10 mm., distance from snout to origin of ventrals 22 mm., to origin of 

 anal 28 mm., distance between base of last anal ray and base of middle caudal 

 rays 9 mm., maxillary barbel 9 mm., nasal barbel 7 mm., length of outer pectoral 

 ray with its filament 8 and 9 mm., the divided rays 5 mm., D. 8.5; A. 0.5, not count- 

 ing the imbedded rays in either case; upper caudal rays 8 mm.; lower caudal rays 

 about 0.5 mm. Accessory caudal rays numerous. 



A lateral band from above the opercle to the middle of the caudal, increasing 

 in width backward; mid-dorsal line dark; a dark stripe in front of the dorsal between 

 the lateral stripe and the mid-dorsal stripe. 



It is possible that some of the specimens under P. nigromaculatum belong here. 



41. Pygidium striatum Meek & Hildebrand. 

 Pygidium striatum Meek & Hildebrand, Field Mus. Publ., No. 100, Zool., Ser. X, 



Dec, 1913, p. 78 (Rio Cana); Publ. 191, Zool., Ser. X, Dec, 1910, p. 200 (Rio 



Cana), Tuyra Basin, Panama. 



Habitat. — Colombia from Santander to the Rio Dagua in west central Colombia 

 and the Rio Tuyra in Panama. 



I have been able to examine the types and the following specimens : 



Catalog Numbers. 



Number of 

 Specimens. 



Length ill 

 Mm. 



Locality. 



Collector. 



7U3a-j, CM. 13820 I.U.M. . 



7114a-6, CM., 13821 I.U.M. 

 7115a-6, CM., 13822 I.U.M 



7105 CM. 



7106a-&, CM., 13S23 I.U.M. 

 7108o-fc, CM., 13824 I.U.M. 

 7109o-i, CTM., 13825 I.U.M. 

 7111a-d, CM., 13828 I.U.M. 



?7112, CM 



13829 I.U.M 



41 

 5 

 4 



o 



20 



16 



9 



1 

 1 



79 largest 



33-60 



41-61 



35 and 71 



58 largest 

 .")() largesl 

 til) largesl 

 43 largest 

 39 

 45 



Quebrada Sarjento 

 Quebrada Alban 

 Quebrada de la Ropera, 



Santander 

 Quebrada de la Hato, 



Santander 

 ( kiadual 

 Villeta 



San ( til, Santander 

 Rio Guaduas 

 Quebrada < Jhamisal 

 Caldas, Rio Dagua 



( ionzales. 

 Gonzale , 



Gonzales. 



< Ionzales. 

 ( ionzales. 

 ( ionzales. 

 ( ionzales. 



< Ionzales. 



< ionzales. 

 Eigenmann. 



Head 5-0; D. 10.5 or 11.5; A. 8.5 or 9.5; P. 8; eye very little in advance of the 



