THE AMERICAN TETRAGONOPTERINAE. 135 
Species 
Hemigrammus ulreyi 
coeruleus 
unilineatus 
marginatus 
erythrozonus 
levis 
hyanuary 
brevis 
rodwayl 
ocellifer 
microstomus 
cylindricus 
analis 
cupreus 
Hyphessobrycon callistus 
serpae 
copelandi 
bentosi 
rosaceus 
panamensis 
gracilis 
taurocephalus 
parvellus 
minimus 
eos 
santae 
anasitsi 
liitkeni 
reticulatus 
duragenys 
stictus 
bifasciatus 
Number 
dissected 
2 
eer ae a ae 
Ll el el el LO CO No 
—_ 
mee bo 
Result of the dissection 
eggs present, but small 
x “~~ well developed 
“ 
“ “ “ 
ripe, large and yellow 
ripe, « “ «“ 
large, ovary broken up 
not large 
large and ripe 
well developed 
white and scattered in body cavity, 
comparatively few 
present but not large 
male specimens. 
eggs large and evidently ripe 
eggs large and evidently ripe 
specimen poorly preserved inside 
“ “ “ “ 
“ 
“ “ “ “ 
eggs large and evidently about ripe 
specimen a male 
eggs fairly well developed 
eggs large, well developed 
“ “ “ 
no eggs, sex uncertain 
eggs large and very evidently ripe 
no eggs 
eggs large, evidently ripe 
eggs of unequal size, some large and full of 
yellow oil 
eggs unequally developed, some quite large 
and ripe 
no eggs 
eggs large, evidently ripe 
eggs large, evidently ripe 
It seems quite certain that these genera are of polyphyletic origin, that 
several sections have been and are arising independently from Astyanax and 
Moenkhausia and probably other genera. 
rather than entities. 
These genera are conveniences 
9. Hermicrammus Gill. 
juc = half, yeauun = a line. 
Hemigrammus Gru, Ann. Lyc. nat. hist. N. Y., 1858, 6, p. 420. 
Typr.— Poecilurichthys (Hemigrammus) unilineatus Gill. 
