Hyalorisia solomonensis 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 solomonensis

description: <i>Hyalorisia solomonensis</i> Fassio, Bouchet &amp; Oliverio new species MOTU-9 (Figs 3K, 6C, 7I, R) <i>Type material</i>: Holotype: off Santa Isabel, Solomon Islands, SALOMON 2, Stn CP2186, 08°17 S, 160°00 E, 487–541 m, MNHN-IM-2007-34203 (male). <i>Material examined</i>: Holotype and other material (MNHN-IM-2007-34215, MNHN-IM-2007-34216, MNHN-IM-2007-34217 and MNHN-IM-2013-66982). <i>Etymology</i>: From the general area of the type locality, Solomon Islands. <i>ZooBank registration</i>: urn:lsid:zoobank.org:act: 65270D2E-622E-461A-BF55-C01018FA7F6E. <i>COI-based diagnosis</i>: Six diagnostic (autapomorphic) positions in the alignment: 347(C), 373(G), 535(G), 542(C), 544(G) and 553(T). <i>Shell (data for holotype shown within parentheses)</i>: Size small to medium for genus: length 4.5–9 (8) mm, width 3–6 (5) mm, height 1–2 (2) mm; ellipsoidal or ovoidal, depressed; white shell surface with smooth yellowish periostracum; anterior margin rounded; protoconch of 1–1.2 (1.1) whorls, diameter of nucleus 0.08–0.1 (0.08) mm; teleoconch smooth except for distinct commarginal growth ridges; apertural margin thin, interior glossy white; lamella narrow to wide, width 0.23–0.69 (0.69) mm. <i>Soft parts (ethanol preserved)</i>: Head completely whitish or grey at the base; cephalic tentacles whitish with grey base; pseudoproboscis whitish, mantle grey with whitish border. <i>Radula</i>: Taenioglossate, 2-1-R-1-2; marginal teeth sickle shaped; internal marginals with few denticles on the inner edge; lateral teeth triangular, highly denticulated on outer edge, inner edge denticulation variable; rachidian tooth triangular, highly denticulated on both edges. <i>Host</i>: No records available of direct collection from host. Two specimens of <i>P. caducum</i> (MNHN-IM-2007-33865 and MNHN-IM-2007-33866) were found at the same stations and showed marks on the shells corresponding to the contour of the <i>Hyalorisia</i> specimens (MNHN-IM-2007-34216 and MNHN-IM-2007-34217). The holotype was found at a station where the only propeamussiids found were <i>P. caducum</i> and <i>P. investigatoris</i>. Another specimen (MNHN-IM-2007-34215) was found at a station where the only propeamussiid found was <i>P. caducum.</i> <i>Distribution</i>: So far known only from the Solomon Islands and Papua New Guinea, at depths of 510– 520 m. <i>Remarks</i>: <i>Hyalorisia solomonensis</i> n. sp. was found sympatrically with <i>H. melanesica</i> n. sp. (MOTU-8) in Ainto Bay, New Britain, Papua New Guinea (Solomon Sea).
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 pages 417-419, DOI: 10.1093/mollus/eyaa028, http://zenodo.org/record/4464900