Beringius frausseni Mclean & Clark 2023
- Dataset
- Seven new genera and thirty-four new species of buccinoid gastropods (Neogastropoda: Buccinidae) from the Aleutian Islands, Alaska
- Rank
- SPECIES
- Published in
- Mclean, James H., Clark, Roger N. (2023): Seven new genera and thirty-four new species of buccinoid gastropods (Neogastropoda: Buccinidae) from the Aleutian Islands, Alaska. Zootaxa 5351 (2): 151-201, DOI: 10.11646/zootaxa.5351.2.1, URL: http://dx.doi.org/10.11646/zootaxa.5351.2.1
Classification
- kingdom
- Animalia
- phylum
- Mollusca
- class
- Gastropoda
- order
- Neogastropoda
- family
- Buccinidae
- genus
- Beringius
- species
- Beringius frausseni
description
Description: Shell large (height to 136 mm, holotype), pyriform, white, slender to moderately inflated; periostracum thin, adherent, light brown. Protoconch with 2.5 whorls; teleconch with four whorls; whorls rounded to slightly shouldered, suture moderately impressed. Axial ribs (when present) low, rounded, 12 – 13 on penultimate whorl, interspaces as broad as ribs. Spiral sculpture of low, broad, rounded cords, 14 – 18 above the suture; base of final whorl with about 15 similar cords, spaced somewhat further apart. Aperture large, less than half of shell height, canal short, broad. Radula. Rachidian tooth sub-ovate, strongly excavated anteriorly (almost chevron- shaped); Lateral teeth large, about 400 µm long, tri-cuspid, outer cusp large, strongly curved, pointed; inner cusp very small, less than 1 / 5 as long as outer cusp, inner cusp about 3 times as long as inner cusp, thick, strongly curved.
description
Figure 11 E – I urn: lsid: zoobank. org: act: 606 C 778 D- 058 A- 4213 - ADBA- 3 F 9 B 1 B 5 E 147 A
discussion
Remarks: The low, broad spiral cords separate this species from all others in the Aleutians. Kantor & Sysoev, 2006 illustrate the holotype of this species as “ Beringius marshalli ”. True Beringius marshalli Dall, 1919 is a slender form of Beringius behringi (Middendorff, 1848), with weak to absent axial folds, and a few faint, irregular spiral cords.
distribution
Distribution: Southern Kamchatka, Kronotskiy Cape and northern most Kurile Islands, Shumushu Island, east to Stalemate Bank, west of Attu Island, Aleutian Islands (?) (50 ° to 54 ° N, 156 ° 20 to 171 ° 15 E), 118 – 280 m. This is a western Pacific species. Habitat: Sand and silt.
etymology
Etymology: The name honors Koen Fraussen, Aarschot, Belgium, for his work on the Buccinidae, and for providing a paratype.
materials_examined
Type locality: Shumushu Island (Okhotsk Sea, side), Kurile Is., Russia (50 ° 44 N, 156 ° 19 E), 118 – 120 m. Type material. Holotype ZIN 62061, 136.0 mm; Paratypes: Pt 1, RBCM 979 - 01070, 124.2 mm. Russia, Kamchatka, Kronotskiy Cape (54 ° 43 N, 162 ° 11 E), 280 m; Pt 2, RNC 4915, 109.7 mm. “ Aleutian Islands ” (Stalemate Bank?), 140 m. (ex. Koen Fraussen).