. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 5. Hemipenis of Pseudoxyrhopus oblectator {UoMype. MCZ 182292) in sulcate and asulcate views. Scale bar = 1 mm. It was obtained from a drift fence and pit- fall trapline set parallel to a trail in an area of broken canopy at the forest/trail eco- tone. The snake was retrieved from the trap in the morning and had probably fall- en in the previous night. MCZ 180299 was dead on Route National 25, a small road passing through habitats similar to those in which the other specimens were found. Pseudoxyrhopus oblectat
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 5. Hemipenis of Pseudoxyrhopus oblectator {UoMype. MCZ 182292) in sulcate and asulcate views. Scale bar = 1 mm. It was obtained from a drift fence and pit- fall trapline set parallel to a trail in an area of broken canopy at the forest/trail eco- tone. The snake was retrieved from the trap in the morning and had probably fall- en in the previous night. MCZ 180299 was dead on Route National 25, a small road passing through habitats similar to those in which the other specimens were found. Pseudoxyrhopus oblectator is most likely nocturnal and/or secretive, as are all other species of Pseudoxyrhopus for which ob- servations on activity exist (Raxworthy and Nussbaum, 1994; Nussbaum et al., 1998). Ranomafana National Park is divided by Route National 25 into a large northern sector and a smaller southern sector. The type locality of Pseudoxyrhopus oblectator is in the southeastern portion of the north- em sector of the park, whereas the other two localities are in the southern sector in the vicinit)^- of the Ranomafana Research Station at Talatakely (Fig. 3). The holotype was obtained during a backpacking explo- ration of the course of the Ranomena Riv- er and its western tributaries, beginning at the the village of Ambatolahy, traveling north to the western edge of the extensive riverine swamps along tributaries of the Ranomena River at approximately 21°12'36"S, 47°26'E (indicated on the 1: 50,000 Ifanadiana topographic map pro- duced by FTM), and thence south and east following the main course of the river (Fig. 3). The Ranomena River is a west-east flowing river of moderate size that joins the Tsaratango River near the village of Revohazo (the Ranomena River should not be confused with the Menarano River in the southern sector of Ranomafana Na- tional Park; both names mean "red water," referring to the dark rusty color of these blackwater streams). At approximately 21
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