Hyalorisia profunda Fassio, Bouchet &amp; Oliverio 2020, new species
Creators: name: Fassio, Giulia
name: Russini, Valeria
name: Buge, Barbara
name: Schiaparelli, Stefano
name: Modica, Maria Vittoria
name: Bouchet, Philippe
name: Oliverio, Marco
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Capulidae
Hyalorisia
Hyalorisia profunda

description: <i>Hyalorisia profunda</i> Fassio, Bouchet &amp; Oliverio new species MOTU-9 (Figs 3I, 6A) <i>Type material</i>: Holotype: South China Sea, ZHONGSHA 2015, Stn CP4137, 19°53 N, 114°25 E, 524–536 m, MNHN-IM-2013-59695. One paratype: same locality as holotype, MNHN-IM-2013-59696. <i>Material examined</i>: Type and other material (MNHN-IM-2007-33806, MNHN-IM-2007-33828 and MNHN-IM-2013-44655). <i>Etymology</i>: After the Latin adjective <i>profundus</i>, <i>-a</i>, <i>-um</i>, meaning deep, with reference to the fact that this species occurs at great depths. <i>ZooBank registration</i>: urn:lsid:zoobank.org:act: 668C5D77-6FAB-457D-A7D9-0F142DC12E49. <i>COI-based diagnosis</i>: Three diagnostic (autapomorphic) positions in the alignment: 52(G), 325(T) and 359(C). <i>Shell (data for holotype shown within parentheses)</i>: Size small to medium for the genus: length 6–9 (7) mm, width 4–6 (5) mm, height 2–3 (2) mm; thin, ellipsoidal to rounded, depressed; white shell surface with smooth yellowish periostracum; anterior margin rounded; protoconch of 1–1.1 (1.1) whorls, diameter of nucleus 0.1–0.21 (0.16) mm; teleoconch smooth except for distinct commarginal growth ridges; apertural margin thin, interior glossy white; lamella narrow, width 0.29–0.69 (0.4) mm. <i>Soft parts</i>: Not examined; damaged by tissue clipping. <i>Host</i>: Based on the field label, the holotype and paratype were attached to a <i>Propeamussium</i> sp.; at that station, the only propeamussiids collected were <i>P. jeffreysii</i> and <i>P. caducum</i>. Two specimens (MNHN-IM-2007-33806 and MNHN-IM-2007-33828) were found at the same station; these and specimens of <i>P. caducum</i> (MNHN-IM-2007-33805 and MNHN-IM-2007-33827, respectively) have consecutive registration numbers, and MNHN-IM-2007-33827 also has a mark on the shell that corresponds to the contour of the <i>Hyalorisia</i> specimen. Another <i>Hyalorisia</i> specimen (MNHN-IM-2013-44655) was found at a station where the only propeamussiid collected was <i>P. caducum</i>. <i>Distribution</i>: So far known only from the South China Sea and the Philippines, at depths of 536–1,240 m. <i>Remarks</i>: <i>Hyalorisia profunda</i> n. sp. was found syntopically with <i>H. nanhaiensis</i> n. sp. (MOTU-6) on the continental slope of the South China Sea (ZHONGSHA 2015: Stn CP4137).
description: Published as part of <i>Fassio, Giulia, Russini, Valeria, Buge, Barbara, Schiaparelli, Stefano, Modica, Maria Vittoria, Bouchet, Philippe &amp; Oliverio, Marco, 2020, High cryptic diversity in the kleptoparasitic genus Hyalorisia Dall, 1889 (Littorinimorpha: Capulidae) with the description of nine new species from the Indo-West Pacific, pp. 401-421 in Journal of Molluscan Studies (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) 86 (4)</i> on page 417, DOI: 10.1093/mollus/eyaa028, http://zenodo.org/record/4464900