Grigelis semirugosus? ( d’Orbigny, 1846 ) (d'Orbigny, 1846)

Guðmundsson, Guðmundur, Cedhagen, Tomas & Andersen, Tom, 2022, Taxonomy and distribution of recent species of the subfamily Nodosariinae (Foraminifera) in Icelandic waters, European Journal of Taxonomy 824 (1), pp. 1-74 : 35-36

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 )
status

 

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.

Kingdom

Chromista

Phylum

Foraminifera

Class

Nodosariata

Order

Nodosariida

Family

Nodosariidae

Genus

Grigelis

Loc

Grigelis semirugosus? ( d’Orbigny, 1846 )

Guðmundsson, Guðmundur, Cedhagen, Tomas & Andersen, Tom 2022
2022
Loc

Grigelis semirugosa

Jones R. W. 1994: 75
1994
Loc

Nodosaria pyrula ( d’Orbigny, 1826 )

Papp A. & Schmid M. E. 1985: 24
1985
Loc

Nodosaria semirugosa d’Orbigny, 1846: 34

d'Orbigny A. D. 1846: 34
1846
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