. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. Fig. 4: Aphyosemion (Mesoaphyosemion) etsamense sp. nov., male from Assok, not preserved Paratypes: MRAC A4-42-P-1-4, same data as holotype, ZFMK 39833 - 39842, same data as holotype, ZFMK 39843, male, Gabon, north of the village Assok, col- lected 11. September 2002 by T. Blum and P. Sewer, collection locality BS 02/13 ( 0°43'36,9" N, 10o21'58,l" E). ZFMK 39844 - 39846, collected by F. Bitter, T. Blum and P. Sewer in August 1999, same locality data as hol
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. Fig. 4: Aphyosemion (Mesoaphyosemion) etsamense sp. nov., male from Assok, not preserved Paratypes: MRAC A4-42-P-1-4, same data as holotype, ZFMK 39833 - 39842, same data as holotype, ZFMK 39843, male, Gabon, north of the village Assok, col- lected 11. September 2002 by T. Blum and P. Sewer, collection locality BS 02/13 ( 0°43'36,9" N, 10o21'58,l" E). ZFMK 39844 - 39846, collected by F. Bitter, T. Blum and P. Sewer in August 1999, same locality data as holotype, preserved after approximately 2 years in aquarium. 1RET, Gabon, two specimens, one male and one female, same data as holotype. Additional Material: Colour pictures of live specimens of the above and other populations of the A. camer- onense group are used to compare colour patterns (AMIET 1987; DADANIAK et al. 1995; HUBER 1977; Seegers 1997). Diagnosis: Aphyosemion {Mesoaphyosemion) et- samense is distinguished from other species of Aphyo- semion by its unique combination of colouration charac- ters in males. This distinctness is supported by a monophyletic lineage of mtDNA haplotypes. Males of A. (M.) etsamense are distinguished from all other members of this species group by its nearly com- plete yellow dorsal fin with small irregular red dots only on basal and posterior egde of fin versus blue or pale yellow with more red dots or flames (compare A. (M.) cameronense Figs. 10-12). The only exceptions are A. (M.) mimbon (Figs. 5 and 6) and a population of A (M.) cf. cameronense in the Ivindo basin between Makokou and Ovan (Fig. 16), which are distinguished by their dif- ferent body, caudal, and anal fin colouration. A. (M.) et- samense is also distinguished from all species and phe- notypes with a yellow caudal peduncle {A. (M.) amoenum (Fig. 8), A.(M.) halleri, A.(M.) sp. aff. camer- onense phenotype 3, 4, 5 (Fig. 14) and 9) through its complete blue colouration of th
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