Haplotaxoides undefined-A

Haplotaxoides sp. A (Fig. 4B) Material examined: USNM 1716319–1716320: USA, California, Del Norte Co., Smith River below forks, approximately 41.8715º N, 124.1248º W (see Table 1), 21 Jun 2017; two immature worms, anterior and posterior segments slide mounted, middle segments analysed for DNA (CE32193, CE32194); for molecular data, see Table 1. All collected by S. Fend. Description Length unknown, maximum diameter 260 μm; cuticular layer of body wall 3–4 μm. Dorsal chaetae slightly sigmoid, length 58–73 μm, diameter 3–4 μm, nodulus 0.43–0.51 the chaetal length from the tip (Fig. 4B). Ventral chaetae strongly hooked, some with dorsal keel at tip; length 95–135 μm, diameter 6–8 μm, nodulus at 0.3–0.42 the chaetal length from the tip. Cuticular layer of body wall 3–3.5 μm. Mouth, pharynx and other gut characters as described above. Coelomocytes numerous, 8–20 μm long; ventral glands to 180 μm, usually 3/bundle. Small, partially developed gonads in XII–XIII.