4 
Analysis of Families 
a* Two distinctly separated dorsal fins 
Ventrals widely separated: lateral line distinct, complete. 
Hhvacichthyidaf 
~b ♦ Ventrals not widely separated. 
iLi -yes not on stalks: Pectoral base not very muscular. 
d» Ventrals close together, not united. 
leotridae 
L 
a. 
fd-’ Ventrals united to form a disk (connecting membrane rarely 
i 
partly incised or only basal). Gobidae 
A 
2 ^ 
c_. Eyes very prominent and closely placed, on short stalks: 
pectoral base very muscular 
P e r i o phthal Ip Ida e 
Dorsals united more or less as single fin: ventrals united. 
’ • Gobioididae 
