. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 166 Bonner zoologische Beiträge 52 (2004) 0 100000 200000 300000 400000 500000 600000 700000 800000 900000 1000000 -. • 1. run • 2. run Generations Fig. 3. The log probability of the observed DNA sequences through time for both of the chains run in this study. Each chain star- ted from a different random tree. The samples taken from the tlrst 100,000 generations were discarded as the bum-in for the chain, and inferences ar
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 166 Bonner zoologische Beiträge 52 (2004) 0 100000 200000 300000 400000 500000 600000 700000 800000 900000 1000000 -. • 1. run • 2. run Generations Fig. 3. The log probability of the observed DNA sequences through time for both of the chains run in this study. Each chain star- ted from a different random tree. The samples taken from the tlrst 100,000 generations were discarded as the bum-in for the chain, and inferences are based on samples from the remaining parts of the chain. 4. DISCUSSION Systematics of Euprepis ajßnis Our analyses of the genetic variation within Euprepis affinis revealed that E. affinis comprises two genetically separated species (Fig. 2). Since Gray (1838) based his description of Euprepis ajßnis on only one specimen of unknown origin, here we cannot clarify which of the two distinct affinis clades represents the nominotypic Euprepis affinis (Gray). Considering that Grandison ex- amined the type oí affinis (BM 929) (HOOGMOED 1974) and concluded that it was conspeci- fic with the nominal species blandingii, a species de- scribed from Gabon, we only can state that affinis repre- sents an Euprepis species, which occurs from Guinea- Bissau to Gabon. Because one clade, herein named af- finis, comprises affinis specimens over a large distribu- tion area (at least Guinea-Bissau to Cameroon; see Tab. 1), whereas the other clade, named cf. affinis, only in- cludes two cf. affinis from mountainous regions in Cameroon, we consider the well-supported mono- phyletic group (ML: 86; PP: ) of the specimens named affinis provisionally as the nominotypic Euprepis affinis Gray, 1845, whereas the specimens named cf. af- finis probably represent a cryptic, yet undescribed spe- cies. But only a direct comparison of affinis and cf. af- finis with the type speci
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