Herschel/PACS 70 μm image towards the IRDC G304.74+01.32 (the Seahorse IRDC). The colour scale is displayed using a linear stretch. The overlaid contours represent the LABOCA 870 μm emission (Miettinen & Harju 2010; Miettinen 2018); the contours start at 3σ, and increase in steps of 3σ, where 3σ = 120 mJy beam⁻¹. The 870 μm clumps are labelled so that the numbers refer to the SMM IDs (e.g. 1 refers to SMM 1), while the sources I13037, I13039, and I13042 are the three IRAS sources in the filament. The sources BLOB 1 and BLOB 2 are labelled as B1 and B2. The plus signs indicate the LABOCA 870 μm emission peaks of the clumps. A scale bar of 1 pc projected length, and the LABOCA beam size (19′′. 86 FWHM) are shown in the bottom left corner.