A breeding arena on sandy substrate near Chembe (Cape Maclear), with bowers built on open sand at a
depth of between 4 m and 7 m.
Breeding:
Males build a volcano-shaped bower with a horizontal spawning platform; the base is surrounded and
demarcated by a shallow circular ditch, from which material is taken to construct the bower.
Special notes:
Tramitichromis is characterized by a distinctive lower pharyngeal bone with long, slender teeth,
including markedly elongated anterior teeth with backward-bent tips, and by a downward-projecting
anterior blade of the pharyngeal bone. The lower gill-rakers are robust and can form a near-horizontal
grid that separates heavier sand from lighter food items during sand-sifting. This undescribed form was
recorded at Chembe in August 2006, where a breeding arena of 50–100 males was observed; females were
rare and appeared to visit mainly when ready to spawn. Deserted bowers of the same type have also been
noted at Kancheza Island, suggesting a distribution beyond Cape Maclear.
Photo gallery