'404 ADDENDA. 



To page 219, after PUiirolepis lydlucidus^ add: 

 2. P. asprellus^ Jordan. Rough Sand Darter. Form 

 of P . pellucidus^ but the squamation much more com- 

 plete, and the scales rougher; sides, back and breast 

 with imbricate scales; size larger and colors darker than 

 in pellucidus; fins high; D. IX— 10; A. I., 8, lat. 1. 98. 

 Sandy streams in Illinois. "Has in life all the colors of 

 the rainbow." 



2. (b) 10 A, Jordan and Bray ton. 



1. /. vitrea, (Cope) Jordan. Glassy Darter. A 

 species apparently similar to the last, but with smaller 

 fins, and much larger scales; D. VII — 14, A. 11, 9; lat. 

 1. 56. North Carolina. 



On page 225, after Nanostoma zo/ialis, add: 



2. N. vinctipes, Jor. May be known from iV. zonalis^ 

 by the absence of the bands encircling the belly, and by 

 the fact that all tlie fins, including the ventrals, are 

 strongly barred. Illinois River. 



On page 227, after P.jessim^ add: 



4. P. asprigenis, Forbes. Rough-CheeivEd Darter. 

 Short and stout; cheeks and opercles entirely scaly y 

 scales large; lateral line about to end of second dorsal; 

 spines high; coloration apparently as in variatus ; 

 spinous dorsal dusky behind; D. XII — 13; A. II, 8; lat. 

 1. 48. Illinois River. 



5. P. virgatus, Jor. A slender species, known by the 

 naked head, black-striped body. (as in PJtheostoma lineo- 

 latum)^ and by the presence of a black humeral scale. 

 Rock Castle R. 



6. P. puncfu/atus, Ag., from Mo. and S., has likewise 

 a black humeral scale, but the cheeks are scaly and the 

 body not striped. 



