WRIGHT AND PAGE: Taxonomic revision of Lake Tanganyikan Synodontis


Table 7. Morphometrics and meristic counts for Synodontis irsacae. All morphometrics given in percent of base
measurement. *Meristic data for holotype. Abbreviations as in Table 3.

 MEASUREMENT HOLOTYPE RANGE (n=42) MEANSD


Body depth/SL
Head length/SL
Snout-dorsal length/SL
Adipose fin length/SL
Maxillary barbel length/SL
Dorsal spine length/SL
Pectoral spine length/SL
Head width/HL
Head depth/HL
HPL/HL
Snout length/HL
Eye/HL
Interorbital width/HL
Postorbital length/HL
Mouth length/HL
Maxillary barbel length/HL
LMB/HL
MMB/HL
MMB/LMB
Dorsal spine length/HL
Pectoral spine length/HL
Eye/Snout length
Interorbital width/Snout length
Postorbital length/Snout length
Eye/Interorbital width
Eye/Postorbital length
HPL/HPD
CPL/CPD


28.6
30.4
38.1
32.3
26.8
24.4
25.3
86.8
82.3
46.3
51.1
17.3
44.3
37.3
37.4
88.1
49.5
20.9
42.2
80.3
83.2
33.8
86.7
73.1
39.0
46.2
327.8
81.5


 17.7-28.6
 27.9-32.8
 36.7-41.8
 26.9-41.5
 16.1-28.4
 18.8-28.0
 19.0-27.5
 75.9-97.1
 59.1-82.3
 35.7-55.8
 50.4-58.2
 16.0-22.6
 27.3-44.3
 29.8-41.0
 33.7-52.8
 52.4 -91.8
 38.2-63.0
 14.4-30.7
 28.6-59.6
 59.6-88.3
 60.6-88.7
 28.7-43.7
 50.9-86.7
 56.0-81.2
 39.0-72.7
 41.8-69.3
180.3-358.2
60.4-128.8


 23.52.5
 31.01.0
 39.41.3
 33.33.3
 22.03.1
 23.42.1
 23.71.6
 82.84.1
 69.85.4
 47.54.3
 53.52.1
 18.72.0
 34.73.6
 35.22.5
 40.94.3
 71.09.9
 46.96.2
 21.73.5
 46.56.6
 75.46.6
 76.76.0
 35.14.0
 65.07.5
 66.06.3
 54.88.9
 53.77.8
280.739.4
94.715.0


MERISTICS


Mandibular tooth count



Dorsal fin count
Pectoral fin count
Pelvic fin count
Anal fin count

Caudal fin count
Total vertebrae count


15(1); 16(2); 18(1); 19(1); 21(5);
22*(8); 23(5); 24(5); 25(4); 26(5);
27(4); 29(1)
II,7*(42)
1,8* (31), 1,9 (11),
i,6*(42)
iii,7(l1); iii,8(2); iii,8,i(2); iii,9(l1);
iv,7(10); iv,7,i(4); iv,8*(22)
i,7,8,i(5)
34(3); 35(2)