1910.] NATURAL SCIENCES OF PHILADELPHIA. 293 



Plate XVII — Fig. 17 — N. lutrensis (Baird and Girard). Cotype of Moniana 



Icetabilis Girard. 

 Fig. 18 — -N. lutrensis (Baird and Girard). Cotype of Moniana gracilis 



Girard . 

 Fig. 19 — N. lutrensis (Baird and Girard). Type of Cyprinella billingsiana 



Cope. 

 Fig. 20 — N. lutrensis (Baird and Girard). Type of Moniana jugalis Cope. 

 Fig. 21 — N. lutrensis (Baird and Girard). Type of Cliola montiregis Cope. 

 Fig. 22 — N. proserpina (Girard). Cotype of Moniana proserpina Girard. 

 Fig. 23 — N. ludibundus (Girard). Cotype of Cyprinella ludibunda Girard. 

 Fig. 24 — N. stigmaturus (Jordan). Cotype of Photogenis stigmaturus 



Jordan . 



Plate XVIII — Fig. 25 — N. eallistius (Jordan). Cotype of Photogenis callistius 



Jordan. 

 Fig. 26 — N. cseruleus (Jordan). Cotype of Photogenis cairuleus Jordan. 

 Fig. 27— N. niveus (Cope). Type of Hybopsis niveus Cope. 

 Fig. 28 — N. whipplii (Girard). Cotype of Photogenis spiloplerus Cope. 

 Fig. 29 — N. pyrrhomelas (Cope). Type of Photogenis pyrrhomelas Cope. 

 Fig. 30 — N. cornutus (Mitchill). Type of Alburnops plumbeolus Cope. 

 Fig. 31 — N. c. cerasinus (Cope). Type of Hypsilepis cornutus cerasinus 



Cope. 

 Fig. 32 — N. c. cyaneus (Cope). Type of Hypsilepis cornutus cyaneus Cope. 



Plate XIX — Fig. 33— N. lacertosus (Cope). Type of Hybopsis lacertosus Cope. 

 Fig. 34 — N. rubricroceus (Cope). Type of Hybopsis rubricroceus Cope. 

 Fig. 35 — N. chlorocephalus (Cope). Type of Hybopsis chlorocephalus Cope. 

 Fig. 36 — N. chiliticus (Cope). Type of Hybopsis chiliticus Cope. 

 Fig. 37 — N. altipinnis (Cope). Type of Alburnellus altipinnis Cope. 

 Fig. 38 — N. roseus (Jordan). Example from Taylor's Creek, Fla. 

 Fig. 39 — N. chalybseus (Cope). Example from Bristol, Pa. 

 Fig. 40 — N. c. abbotti Fowler. Type. 



Plate XX — Fig. 41 — N. chrosomus (Jordan). Cotype of Hybopsis chrosomus 



Jordan . 

 Fig. 42 — N. xsenocephalus (Jordan). Cotype of Hybopsis xamocephalus 



Jordan. 

 Fig. 43 — N. ariommus (Cope). Type of Photogenis ariommus Cope. 

 Fig. 44 — N. swaini Jordan. Cotype of Alburnus megalops Girard and N. 



swaini Jordan. 

 Fig. 45 — N. luciodus (Cope). Type of Photogenis luciodus Cope. 

 Fig. 46 — N. stilbius (Jordan). Cotype of Nototropis stilbius Jordan. 

 Fig. 47 — N. atherinoides Rafinesque. Cotype of Alburnellus jaculus Cope 

 Fig. 48 — N. dilectus (Girard). Type of Alburnus oligaspis Cope. 



Plate XXI — Fig. 49 — N. rubrifrons (Cope). Type of Alburnus rubrifrons 

 Cope. 

 Fig. 50 — N. rubrifrons (Cope). Type of Alburnellus percobromus Cope. 

 Fig. 51 — N. photogenis (Cope). Type of Squalius photogenis Cope. 

 Fig. 52 — N. photogenis (Cope). Type of Photogenis leucops Cope. 

 Fig. 53 — N. p. amoenus (Abbott). Example from Holmesburg, Phila., Pa. 

 Fig. 54 — N. micropteryx (Cope). Type of Alburnellus micropteryx Cope. 

 Fig. 55 — N. lirus (Jordan). Cotype of Nototropis lirus Jordan. 

 Fig. 56 — N. umbratilis ardens (Cope). Type of Hypsilepis ardens Cope. 



