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Fig. 7. A corrosion cast of Periophthalmodon schlosseri to show a filament of the left second branchial arch showing the lamellae covering one side of the filament (a) and the interlamellar circuit when lamellae were removed (b). A cross-section through a filament shows the vascular details of the arterio-arterial and interlamellar circuits (c). Plus signs in (b) and (c) are filamental veins; white arrowheads in (b) and (c) are interlamellar vessels of unknown origin; black arrowheads in (b) are the efferent lamellar arterioles; asterisks in (a) and (c) are capillaries in the leading edge of the filament. Black arrows in (c) indicate the direction of blood flow. Bars 100 μm (a–c). AFA afferent filamental artery; ALA afferent lamellar arteriole; EFA efferent filamental artery; ELA efferent lamellar arteriole; IMC inner marginal channel; L lamella; OMC outer marginal channel. Reprinted with permission of John Wiley & Sons, Inc. from Journal of Morphology, 272, Gonzales et al., Gross and fine anatomy of the respiratory vasculature of the mudskipper, Periophthalmodon schlosseri (Gobiidae: Oxudercinae), 629–640, Fig. 3, © 2011, Wiley-Liss, Inc., a Wiley Company.

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