| 1a |
D2 with 11-13 elements; preopercle with 2-3
pores; oculoscapular pores K,L
present or absent; barbels present or absent............................................................2 |
| 1b |
D2 with 10 elements, males with first 2 spines elongate,
females with first spine
elongate; anal 9 elements; preopercle with 3 pores; oculoscapular
pores K,L
absent; no barbels present; row 5i/6i at anterior of row
b (Fig b above); scale distribution as in (A).................................................................................
sp nov.
z
|
A
|
 |
|
| 2a |
Mandibular frenum bilobed forming two barbels;
D2 generally 12; ...................... 3 |
| 2b |
Mandibular frenum not bilobed with barbels;
D2 generally 11, sometimes 12; .....4 |
| 3a |
Posterior oculoscapular canal pores K,L present; D2 12(11-13),
anal 10(9-11);
sensory papillae row 5i/6i under the middle of row b (Fig
b above); 4 scales present on caudal peduncle with a few
small embedded scales above and below and 1-2
rows under pectoral fin with 4 scales, rarely without
scales (A);............................sp
h
|
A
|
 |
|
| 3b |
Posterior oculoscapular canal pores K,L absent; all pores
large; sensory
papillae row 5i/6i under middle of b(Fig b above); small
patch of scales under pectoral fin base(sometimes absent),
caudal without scales or only two
basicaudal scales(A); D2 12-13; anal 10.......................................................nudum
|
A
|
 |
|
| 4a |
Small to large barbel present at anterior nostril, no
barbel on mandibular
frenum; D2 with 11-12 elements; anal 10; scales extend
to under pectoral fin (A);
row 5i/6i at anterior of row b ................................................................
homochroma
|
A
|
 |
|
| 4b |
No barbels present; scales on body extending
in a wedge to at least under
5th ray of D1; ...........................................................................................................
5 |
| 5a |
Urogenital papillae of males broad and distinctly bilobed,
females with
a notch at posterior end; D1 with elongate spines in males;
body with
strong vertical bar pattern; scales extending in a wedge
to under
pectoral fin(A); D2 with 11(11-12) elements; anal
with 10(9-10); row 5i/6i
at anterior of row b(Fig a above) ....................................................hildebrandi
|
A
|
 |
|
| 5b |
Urogenital papillae of males not broad or
bilobed, females without a notch at posterior end; D1 with
or without elongate spines; scales extending to at least
under 7th spine of D1; .................................................................................................
6 |
| 6a |
D2 with 12 elements; sensory papillae row 5i/6i under
the middle of
row b (Fig b above); preopercle canal with 3 pores; scales
extending
forward along dorsal to about 7th ray of D2 and along
midline to about
5th ray of D1 (A)............................................................................................paradoxum
|
A
|
 |
|
| 6b |
D2 with 11 elements; sensory papillae row
5i/6i at the anterior end of row b (Fig a); preopercle canal
with 2-3 pores; scales extending to base of pectoral fin;...........7 |
| 7a |
D1 of mature males with first two spines elongate (sometimes
lacking);
preopercle canal with 3 pores; row 5i/6i at anterior of
row b(Fig a above); D2 11.
anal 10-11; scale distribution as below ...............................................
chiquita
|
| 7b |
D1 of males without elongate spines; preopercle canal
with 2 pores; scales along
midline extending to under pectoral fin(A); row
5i/6i at anterior of row b(Fig a above); D2 with 11(10-11);
anal with 10(9-11) .............................................sp
nov b
|
A
|
|
|
