Ampharete acutifrons ( Grube, 1860 )

Krüger, Lotte, Dietrich, Anna, Bastrop, Ralf & Bick, Andreas, 2022, From synonym to valid species: Redescriptions of Ampharete acutifrons (Grube, 1860) and A. cirrata Webster & Benedict, 1887, and brief descriptions of A. baltica Eliason, 1955 and A. grubei Malmgren, 1865 (Annelida: Terebellida: Ampharetidae), Zootaxa 5174 (4), pp. 357-380 : 361

Ampharete acutifrons ( Grube, 1860)

( Figs 2 , 3 )

Non. A. acutifrons Hessle 1917

Non. A. acutifrons Annenkova 1929

Non. A. acutifrons Hartmann-Schröder 1971, 1996

Non. A. acutifrons Day 1973

Non. A. acutifrons Bick and Gosselck 1985

Non. A. acutifrons Holthe 1986

Non. A. acutifrons Jirkov 2001

Non. A. acutifrons Parapar et al. 2012

Figures

FIGURE 2. Original drawings from the first description of Amphicteis acutifrons by Grube 1860. 6. Anterior end, ventral view. 6a. Posterior end with anal cirri, ventral view.

FIGURE 3. Ampharete acutifrons. Holotype (ZMB Verm. 1575), Micrographs of methyl blue staining pattern. A. Complete specimen, ventral view, with continuous ventral shields from segment I to XIV and median ventral groove from segment XV to posterior end. B. Dorsal view on posterior thorax and abdomen with damaged segments.Arrows point towards eggs, leaving the body wall in intermediate and following three abdominal segments. Note:Abdominal neuropodia without cirri. C. Anterior end, dorsal view with branchiae missing, bases still recognizable. Note: Presence of thick and relatively short paleae and two buccal tentacles. D. Dorsal view on paleae of left body side in detail. Arrow indicates smaller and thinner paleae. E. Posterior end with anal cirri. F. Thoracic notopodia 6-9, dorsal view. G. Last thoracic notopodium with differing diameters of chaetae. H. Detached abdominal uncinus. Scale bars: A, B = 500 µm. C = 400 µm. D, E = 200 µm. F = 100 µm. G = 75 µm, H = 10 µm.