Table 1 Definition of landmarks. Nineteen landmarks were digitized on 691 specimens of Tropheus (see also Fig. 2).
From: Sexual dimorphism and population divergence in the Lake Tanganyika cichlid fish genus Tropheus
Landmark | Definition |
|---|---|
1 | anterior tip of snout |
2 | anterior insertion of dorsal fin |
3 | posterior insertion of dorsal fin |
4 | upper insertion of caudal fin |
5 | midpoint of the origin of caudal fin |
6 | lower insertion of caudal fin |
7 | posterior insertion of anal fin |
8 | anterior insertion of anal fin |
9 | insertion of ventral fin |
10 | anteroventral tip of pectoral girdle (cleithrum) |
11 | ventral-most point of the border between interopercle and subopercle |
12 | the point where preopercle, interoperculum and subopercle meet |
13 | upper insertion of pelvic fin |
14 | dorsal origin of operculum |
15 | dorsal end of preopercular groove |
16 | anterior rim of orbit along the horizontal body axis |
17 | centre of orbit |
18 | posterior rim of orbit along the horizontal body axis |
19 | posterior-most point of lips |