| 1a |
A low predorsal crest on head; dorsal fin with 15-20
elements; anal fin with
12-16 elements ...............................................................................................................
2
|
| 1b |
No predorsal crest on head; dorsal fin with 11-14 elements;
anal fin with 9-11
elements ...........................................................................................................................
4
|
| 2a |
Body with 9 narrow light bars,
bordered by dark pigment rows and with several
median rows of melanophores .........................................................................
gilberti |
| 2b |
Body with 7 or less narrow dark
(blue in life) crossbars, wide interspaces light
(red in life) ........................................................................................................................
3 |
| 3a |
Pectoral fin with 21-22(20-23)
elements; dorsal fin with generally 19 elements; anal
fin with 15-16 elements.....................................................................................
cobalus |
| 3b |
Pectoral fin with 18-19(17-20) elements; dorsal
fin with generally 18 elements; anal
fin with generally 14 elements ...............................................................................
dalli |
| 4a |
Narrow and broad cross bars with
median rows of melanophores ................ zebra |
| 4b |
Narrow crossbars only with median
rows of pigment.................................................5 |
| 5a |
Narrow crossbars lighter or of
equal intensity as wider interspaces .......................
6 |
| 5b |
Narrow crossbars darker than
interspaces .................................................................
8 |
| 6a |
Narrow crossbars with 8-12 median
rows of closely spaced melanophores; dorsal
fin with 14 elements ....................................................................................
lavenbergi |
| 6b |
Narrow crossbars with 2-3 median
rows of melanophores; dorsal fin with
12(11-13) elements.........................................................................................................
7 |
| 7a |
Live coloration narrow blue crossbars
with wider red interspaces; narrow
crossbars typicall of same (rarely less) intensity as interspaces
of preserved
specimens.....................................................................................................
pulchellus |
| 7b |
Live coloration pale blue crossbars
with drab brown interspaces; narrow
crossbars usually lighter (rarely of equal) intensity as
preserved specimens
with interspaces ..........................................................................................rhizophora |
| 8a |
Longitudinal scales generally
37; cheeks and lower head with large white
spots ..............................................................................................................
alphigena |
| 8b |
Longitudinal scales 27-29; lower
head with brown spots..................................
9 |
| 9a |
Pectoral fin with 17-20 elements;
narrow crossbars on body 13-15; 1(1-2) median
rows of melanophores on each crossbar.....................................................
insularis |
| 9b |
Pectoral fin with
21-22 elements; narrow crossbars on body 12; typically 3
rows
of melanophores on each crossbar ...........................................................solanensis |
| |
|
