THE CYPRINODONTS. 159 
der Afterflosse, ein wenig grisser als diese. Zwischenkiefer und Unterkiefer 
mit einer Binde feiner spitzer gekriimmter Ziihne, deren tiussere Reihe die 
hinteren iiberragt. Gaumen zahnlos. Schlundknochen mit kurzen dicken 
conischen Ziihnen besetzt. Keine Nebenkiemen. Fiinf Kiemenstrahlen. 
Seitenlinie schwach, gerade. Schuppen glatt, an hinteren Rand ganz. 
Grundfarbe dunkelgriin, metallisch gliinzend, nach den Unterbauch in’s 
Goldige iibergehend. Auf dem hintern Dritttheil der Schuppen ein schwarz- 
brauner Fleck, wodurch am ganzen Kérper alternirende Reihen von solchen 
Querflecken entstehen. Die hinteren Flossen goldgelb mit eben solchen 
Flecken. Ein einfacher Magen und grader kurzer Darm ohne Anhiingsel. 
Einfache Schwimmblase. Die Eierstiicke fiihren nach aussen. Mozambique. 
( Peters.) 
NOTES. 
Tue 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 Salmonidw, Pleuronectida, 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. 
Belonesocina, being the earlier name, takes the place of Gambusiin@ on pages 19 
and 80. 
Orestiasina is to be inserted above Orestias on page 145. 
fothobranchiing is to precede Haplochilichthys on page 156. 
Opportunity is here taken to express a hearty appreciation of the kindness of Prof. 
Dr. Karl Mébius, Dir. Zool. Mus. Berlin, and of his assistant Dr. Hilgendorf, in regard to 
examination of particular types, of that of Dr. B. W. Evermann, of the U. 8, Fish. Comm., 
for certain publications, and of that of Prof. H. Garman, of the Ky. State College, for 
specimens. 
