While I can't get a good look at the bow in this picture, the Christ Church Sailing Club called them scows. I'm not seeing it.
Here's what they had to say about these sweet looking little boats.
"Christchurch Sailing Club has a large and active fleet of Scows numbering well over fifty boats, most of which can be seen on the Club hard in the summer. The 11 foot long Scow originated in the 1920s as a sailing tender for larger cruising yachts, but over the years, has become popular as a single-handed sheltered water racing dinghy. The rig is a single balanced lug, with the mast and spars designed to fit within the length of the boat. There are many slight variations of the basic design in the Solent area and beyond, the Club's variant being the Avon Scow. All the dinghies are essentially one-design, but the GRP hulls in the Club clearly come from more than one mould. The Club owns one such mould, from which construction lines have been taken."
Another view of the Avon Scow from another source:
-Will (Dragonfly)