Figure 1From: Reticulate phylogeny of gastropod-shell-breeding cichlids from Lake Tanganyika – the result of repeated introgressive hybridizationA typical shell-nest constructed by large Lamprologus callipterus males. These aggregations attract different species of obligatory and facultative gastropod-shell-breeders, which consequently live and breed in closest vicinity. The photograph shows individuals of L. callipterus, N. calliurus, N. fasciatus and two facultative "non-ossified group" shell-dwellers – Telmatochromis temporalis and T. vittatus.Back to article page