Additional file 3.

Organisation of the ventral nervous system in the tardigrade Macrobiotus cf. harmsworthi. Anti-RFamide-like immunoreactivity; confocal micrographs; anterior is up in all images. Note the lack of signal in the interpedal commissures (asterisks). Arrowheads (in A and B) point to the repeated somata of RFamide-like immunoreactive neurons within the second and third trunk ganglia. (A) Detail of the first and second trunk ganglia. (B) Detail of the third trunk ganglion. (C) Detail of the fourth trunk ganglion. Abbreviations: cn, connective; ga1–ga4, trunk ganglia 1 to 4. Scale bars: 5 μm.

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Mayer et al. BMC Evolutionary Biology 2013 13:230   doi:10.1186/1471-2148-13-230