Proscoloplos Day 1954 ...

• Main Author: Blake, James A.
• Format: Text
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Orbiniidae; Proscoloplos; Southern Ocean; Pacific; Noto; Solís; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.4901838; https://zenodo.org/doi/10.5281/zenodo.4901838

Genus Proscoloplos Day, 1954 Type-species: Proscoloplos cygnochaetus Day, 1954 by monotypy. Diagnosis. Body short, with separation between thorax and abdomen indistinct and with body segments of similar shape and size throughout, with no change in appearance between anterior and posterior segments. Prostomium broadly rounded or elongate, with paired rounded nuchal organs present; eyespots present or absent. Peristomium with two asetigerous rings. Noto- and neuropodia poorly developed, consisting of low tori from which setae emerge; with simple, tapering post-setal lamellae; posterior parapodia not shifted dorsally. Setae including crenulated capillary noto- and neurosetae and distinct swan hooks present from anterior neuropodia; furcate setae entirely absent. Branchiae present from anterior parapodia continuing posteriorly. Pygidium with four cirri. Remarks. Pettibonella Solís-Weiss & Fauchald, 1989 and Proscoloplos are the only two orbiniid genera having swan hooks. Pettibonella was differentiated from ... : Published as part of Blake, James A., 2017, Polychaeta Orbiniidae from Antarctica, the Southern Ocean, the Abyssal Pacific Ocean, and off South America, pp. 1-145 in Zootaxa 4218 (1) on page 118, DOI: 10.5281/zenodo.245827 ...