Grigelis semirugosus? ( d’Orbigny, 1846 ) (d'Orbigny, 1846)
publication ID |
https://doi.org/ 10.5852/ejt.2022.824.1827 |
publication LSID |
lsid:zoobank.org:pub:FD730CE0-96B9-492F-A9BF-B6ABBA755959 |
DOI |
https://doi.org/10.5281/zenodo.6761990 |
persistent identifier |
https://treatment.plazi.org/id/165687E7-8051-6003-0472-FD1EB40823AC |
treatment provided by |
Felipe |
scientific name |
Grigelis semirugosus? ( d’Orbigny, 1846 ) |
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Grigelis semirugosus? ( d’Orbigny, 1846) View in CoL
Fig. 9 View Fig
Nodosaria semirugosa d’Orbigny, 1846: 34 View in CoL , pl. 1 figs 20–23 (rugosa in plate text).
Grigelis semirugosa View in CoL – Jones 1994: 75, pl. 63 figs 23–27.
non Nodosaria pyrula ( d’Orbigny, 1826) View in CoL – Papp & Schmid 1985: 24 (nr. 10), pl. 4 figs 6–8.
Material examined
ICELANDIC WATERS • 5; 66.3425° N, 23.5217° W; RP sledge; depth 158 m; 6.66°C; 35.06 ppt; 25 Jul. 2004; BIOICE 3669 ; IINH 40403 GoogleMaps • 1; 63.2556° N, 21.2389° W; detr. sledge (Sneli); depth 180 m; 7.24°C; 35.11 ppt; 5 Jul. 1993; BIOICE 2465 ; IINH 40402 GoogleMaps .
Description
Test shape elongate, nearly straight to slightly curved, strongly nodular, barely tapering, or successive chambers are of equal diameter. Length of test fragments 2–3 mm, comprising 3–7 chambers; test width 0.2–0.3 mm. Chambers pear-shaped with an elongated long neck, rectilinearly arranged, with minimal embracement; chambers attached at the very end of the apertural neck; number of chambers unknown, the largest fragment has 7 chambers. Sutures horizontal. Aperture radial, protruding and central, at the end of a long neck; radial tines up to 12, symmetrically arranged and fused in the center. Longitudinal striae cover the apertural neck and the upper and lower part of the chambers, leaving the central part smooth. Secondary surface laminations absent, wall finely perforated thin and transparent.
Remarks
Typical G. semirugosus ? has distinct costae or furrows that are mostly confined to the base of the chambers. However, the six specimen fragments at hand differ in having rather faint striations or furrows, covering the upper half and the lower part of the chambers, leaving the central part smooth ( Fig. 9A View Fig ). In addition to being striated, the putative P. semirugosus ? differs from P. pyrula in having a relatively shorter and more conical neck. The initial end in available material is missing.
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Grigelis semirugosus? ( d’Orbigny, 1846 )
Guðmundsson, Guðmundur, Cedhagen, Tomas & Andersen, Tom 2022 |
Grigelis semirugosa
Jones R. W. 1994: 75 |
Nodosaria pyrula ( d’Orbigny, 1826 )
Papp A. & Schmid M. E. 1985: 24 |
Nodosaria semirugosa d’Orbigny, 1846: 34
d'Orbigny A. D. 1846: 34 |