Pallenopsis rotunda Cano-Sánchez & López-González 2019, n. sp.

• Main Authors: Cano-Sánchez, Esperanza, López-González, Pablo J.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Pycnogonida; Pantopoda; Pallenopsidae; Pallenopsis; Pallenopsis rotunda; Victoria Land
• Online Access: https://doi.org/10.5281/zenodo.5621251; http://treatment.plazi.org/id/624C87A5FFD9292EFF41110B471CF838

Pallenopsis rotunda n. sp. urn:lsid:zoobank.org:act: C7FDF5A4-B01C-467C-9D82-261ADF2146B8 (Fig. 3, 4) Material examined. MNA (11029) holotype, one adult male, Victoria Land Transect cruise ( Italica XIX), Cape Hallett, stn. H-out 4 bis, 72°18.4' S 170°26.7' E, 234 m depth, Van Venn, 12 Feb 2004. BECA (P.1500) one larvigerous male, Victoria Land Transect cruise ( Italica XIX), Cape Hallett, stn. H-out 4 bis, 72°18.4' S 170°26.7' E, 234 m depth, Van Veen, 12 Feb 2004. MNA (11030), one adult female, Victoria Land Transect cruise ( Italica XIX), Cape Hallett, stn. H-out 3B, 72°17'.1 S 170°25'.8 E, Agassiz trawl, 255–261 m depth, 4 Feb 2004. Diagnosis. Proboscis cylindrical, slightly widened at the end. Lateral processes in contact proximally and along most of their length. Chelae fingers shorter than palm width, wedge-shaped and touching along their length when closed; movable chelae finger with setose pad. Palp in contact with oviger basal process. Legs with long setose setae mainly placed on dorsal and lateral surfaces, not arranged in rows. Auxiliary claws longer than half claw length. Description of the holotype (male). Size moderate, leg span 94.5 mm. Proboscis mostly cylindrical, slightly up-curved, with a little narrowing in the middle and greatest diameter at the bulbous end, distally equipped with short spines. Trunk fully segmented, with lateral processes in contact proximally, slightly separated distally, V-shaped. Tiny bilaterally paired dorsal tubercles on the three first segments with some scarce long setose setae. Lateral processes with dorso-distal small tubercles, with long setose setae. Cephalic segment tapering anteriorly at chelifores’ insertion. Abdomen long, up-curved, with long setose setae on distal half, and slightly widened on its distal half. Ocular tubercle at anterior part of cephalic segment, taller than wide, with a pointed cone. Four eyes of similar size, anterior pair slightly lower than posterior pair. Chelifores large, with two-articled scape. First scape article longer than second ...