THE CYPRINODONTS. 159 



der Afterflosse, ein wenig grosser als diese. Zwischenkiefer und Unterkiefer 

 mit einer Binde feiner spitzer gekrlimmter Zahne, deren jiussere Reihe die 

 hinteren iiberragt. Gaumen zahnlos. Schlundknochen mit kurzen dicken 

 conischen Ziihnen besetzt. Keine Nebenkiemen. Fiinf Kiemenstrahlen. 

 Seitenlinie schwach, gerade. Schui^pen glatt, an hinteren Rand ganz. 

 Grundfarbe dunkelgriin, metallisch glanzend, nach den Unterbauch in's 

 Goldige libei-gehend. Auf dem hintern Dritttlieil der Schiippen ein schwarz- 

 brauner Fleck, wodurch am ganzen Korper alternirende Reihen von solchen 

 Querflecken entstehen. Die hinteren Flossen goldgelb mit eben solchen 

 Flecken. Ein einfacher Magen und grader kurzer Darm ohne Anhangsel. 

 Einfache Schwimmblase. Die Eierstocke fuhren nach aussen. xMozambique 

 (Peters.) 



NOTES. 



The foregoing descriptions were drawn mainly from specimens in the collections at 

 hand. When dependence was placed on literature the words of the original character- 

 ization have been put forward, rather than translations. 



The scales of the lateral line were counted from the upper angle of the gill opening to 

 the end of the series on the tail. The transverse series were usually taken from the origin 

 of the dorsal fin to the anal. On many of the species the number of scales in the lateral 

 line closely corresponds with the number of vertebra;. 



All of the rays in the fins were enumerated. No special stress was placed on the 

 shapes of the fins, as they change so much with age or in breeding males and females. 



The gill rakers being normal in the younger stages and degrading and to some extent 

 disappearing later, as in certain Salmonidae, Pleuronectidfe, etc., little dependence was 

 placed on them. 



The majority of the teeth were hardly visible without the aid of lenses ; consequently 

 the figures represent them greatly enlarged. Size varying with the individual, the shapes 

 were of most value in comparisons; yet in each figure (group), the details all having the 

 same enlargement, comparative sizes of outer, inner, and pharyngeal teeth were preserved. 



Belonesocince, being the earlier name, takes the place of Gambusiince on pages 19 

 and 80. 



Orestiasince is to be inserted above Orestias on page 145. 



Nothobranchiiim is to precede Haplochilichthys on page 156. 



Opportunity is here taken to express a hearty appreciation of the kindness of Prof. 

 Dr. Karl Mobius, Dir. Zool. Mus. Berlin, and of his assistant Dr. Hilgendorf, in regard to 

 examination of particular types, of th^t of Dr. B. W. Evermann, of the U. S. Fish. Comm., 

 for certain publications, and of that of Prof. H. Garman, of the Ky. State College, for 

 specimens. 



