Table 1. Diagnostic characters for Lake Tanganyikan species of Synodontis in which an axillary pore is present.


Mandibular teeth

Axillary pore

Spots on body

Fin spine color

Triangles on rayed fins




Pectoral-fin rays

Eye/Snout length

Premaxillary toothpad

Maximum TL, mm

Secondary branches
on medial mandibular
barbel

Occipito-nuchal shield
covered with skin

Papillae on body skin

Gut/Body length

Hindgut chamber


S. dhonti

 22

 Large

 Absent

 Dark

 Present




 8

 23.1%

 Uninterrupted

 395

 Present



 No


 Granular

 No data

 No data


S. grandiops

 17-26

 Large

 Large

 Dark

 Present -
 dorsal, pectoral
 Absent anal,
 pelvic

 7

 64.2-81.0%

 Uninterrupted

 150

 Absent


Absent

0.8-0.9

Absent


S. granulosus

 28-51

 Large

 Absent or small

 Dark

 Present




 7-8

 31.2-50.2%

 Uninterrupted

 270

 Absent


Granular

0.5

Absent


S. multipunctatus

 13-29

 Large

 Large

 Dark

 Present -
 dorsal, pectoral
 Absent anal,
 pelvic

 8

 44.9-62.0%

 Uninterrupted

 280

 Absent



 Yes


 Absent

 0.5-0.8

 Absent


S. petricola

31-50

Small

Large

White

Present




8-9

28.7-40.1%

Interrupted

135

Present



Yes


Absent

1.2-1.3

Present


S. tanganaicae

33-49

Large

Absent or small

Dark

Present- juvenile
Absent- adult



8-9

16.0-26.9%

Interrupted

585

Present



No


Granular

No data

Absent