opt}$ ($+4.7\pm15.0$ [kms$^{-1}$]{}).

023.9$-$02.3 (M 1-59) Single component with prominent broad wings. A CO spectrum obtained with the JCMT 15 m telescope was previously reported by Gussie & Taylor (1995). Emission spike at $V =
    -8$ [kms$^{-1}$]{} is IS. $V_{\rm o}$ consistent with uncertain $V_{\rm
    opt}$ ($+85.9\pm14.0$ [kms$^{-1}$]{}).

025.9$-$00.9 (Pe 1-14) Single component profile with series of narrow IS spike/dip features. $V_{\rm opt}$ is unknown.

025.9$-$10.9 (Na 2) Double-peaked profile. $V_{\rm o}$ consistent with uncertain $V_{\rm opt}$ ($+97.8\pm12.0$ [kms$^{-1}$]{}).

031.7+01.7 (PC 20) Single-peaked profile. $V_{\rm opt}$ is unknown.

032.7+05.6 (K 3-4) Single peaked profile with broad wing on red side; IS spike/dip contamination on the blue wing from 0 to $-$18 [kms$^{-1}$]{}. $V_{\rm opt}$ is unknown.

039.8+02.1 (K 3-17) Strong, remarkably broad, roughly flat-topped profile, possibly with additional weak wings; the dips in the profile at $V
    = 13$–18 [kms$^{-1}$]{} are IS. $V_{\rm opt}$ is unknown.

043.0$-$03.0 (M4-14) Strong, asymmetric double-peaked profile, with broad wings. $V_{\rm o}$ consistent with uncertain $V_{\rm opt}$ ($+31.7\pm15.0$ [kms$^{-1}$]{}).

047.1+04.1 (K 3-21) Tentative 5-$\sigma$ detection. $V_{\rm opt}$ is unknown.

055.3+02.7 (He 1-1) Tentative 5-$\sigma$ detection. $V_{\rm o}$ differs by $\sim 42$ [kms$^{-1}$]{} from $V_{\rm opt} \sim -35$ [kms$^{-1}$]{} from Guerrero et al. (1999), but roughly 