Dentalina frobisherensis Loeblich & Tappan, 1953

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 : 17-23

Dentalina frobisherensis Loeblich & Tappan, 1953

Fig. 5

Dentalina frobisherensis Loeblich & Tappan, 1953: 55 , pl. 10 figs 1–9.

Laevidentalina frobisherensis – Eiland & Guðmundsson 2004 (part): 200, 202, pl. 1 fig. c, pl. 4 figs a–e, pl. 5 figs c, e (only).

non Nodosaria communis (d’Orbigny, 1840) – Goës 1894 (part): 67–68, pl. 12 figs 668–670 (only).

non Nodosaria pauperata ( d’Orbigny, 1846) – Goës 1894 (part): 68–69, pl. 12 figs 672, 674–676 (only). — Cushman 1923: 72, pl. 14 fig. 13. non Nodosaria mucronata ( Neugeboren, 1856) – Cushman 1923 (part): 80. pl. 12 figs 5–7, pl. 13 figs 7–8 (only).

Material examined

BARENTS SEA • 12; 82.3522° N, 25.3186°E; epibenthic dredge; depth 3920 m; unknown; unknown; 16 Jul. 1980; Ymer 80 MB8 ; IINH 21157 • 42; 81.8347° N, 26.5692°E; epibenthic dredge; depth 3270 m; unknown; unknown; 18 Jul. 1980; Ymer 80 MB9 ; IINH 21153

ICELANDIC WATERS • 1; 65.3558° N, 13.3342° W; RP sledge; depth 177 m; 2.8°C; unknown; 19 Jul. 1991; BIOICE 2004 ; IINH 39509 • 1; 65.5836° N, 11.2881° W; RP sledge; depth 768 m; -0.42°C; unknown; 20 Jul. 1991; BIOICE 2011 ; IINH 39429 • 3; 65.6953° N, 11.0106° W; RP sledge; depth 978 m; -0.41°C; unknown; 20 Jul. 1991; BIOICE 2014 ; IINH 39428 • 1; 66.5089° N, 11.2278° W; detr. sledge (Sneli); depth 1395 m; -0.82°C; unknown; 21 Jul. 1991; BIOICE 2017 ; IINH 39430 • 11; 66.5769° N, 11.2303° W; RP sledge; depth 1390 m; -0.82°C; unknown; 21 Jul. 1991; BIOICE 2018 ; IINH 39431 • 6; 66.6278° N, 12.1542° W; detr. sledge (Sneli); depth 1314 m; -0.86°C; unknown; 22 Jul. 1991; BIOICE 2020 ; IINH 39432 • 1; 67.2061° N, 13.3494° W; RP sledge; depth 1648 m; -0.76°C; unknown; 23 Jul. 1991; BIOICE 2027 ; IINH 39607 • 1; 67.0581° N, 13.4239° W; RP sledge; depth 931 m; -0.56°C; unknown; 23 Jul. 1991; BIOICE 2029 ; IINH 39608 • 8; 66.9225° N, 13.5181° W; RP sledge; depth 552 m; -0.54°C; unknown; 23 Jul. 1991; BIOICE 2033 ; IINH 39609 • 6; 66.3647° N, 13.4856° W; RP sledge; depth 310 m; 1.3°C; unknown; 24 Jul. 1991; BIOICE 2040 ; IINH 39610 • 4; 65.7792° N, 13.9722° W; detr. sledge (Sneli); depth 229 m; 2.6°C; unknown; 24 Jul. 1991; BIOICE 2045 ; IINH 39611 • 1; 65.7025° N, 12.8833° W; RP sledge; depth 272 m; 1.96°C; unknown; 25 Jul. 1991; BIOICE 2047 ; IINH 39612 • 1; 65.6531° N, 12.3583° W; RP sledge; depth 247 m; 1.2°C; unknown; 25 Jul. 1991; BIOICE 2049 ; IINH 39613 • 5; 66.1586° N, 17.6069° W; detr. sledge (Sneli); depth 198 m; 3.8°C; 34.85 ppt; 2 Jul. 1992; BIOICE 2065 ; IINH 39433 • 1; 66.5708° N, 17.73° W; detr. sledge (Sneli); depth 485 m; 0.52°C; 34.8 ppt; 3 Jul. 1992; BIOICE 2069 ; IINH 39434 • 9; 66.5711° N, 17.7425° W; RP sledge; depth 489 m; 0.52°C; 34.8 ppt; 3 Jul. 1992; BIOICE 2070 ; IINH 39435 • 5; 67.2014° N, 17.5344° W; detr. sledge (Sneli); depth 563 m; -0.42°C; 34.7 ppt; 3 Jul. 1992; BIOICE 2075 ; IINH 39614 • 4; 67.6808° N, 17.1772° W; RP sledge; depth 1048 m; -0.52°C; 34.85 ppt; 3 Jul. 1992; BIOICE 2077 ; IINH 39615 • 3; 67.6719° N, 17.2008° W; detr. sledge (Sneli); depth 1046 m; -0.52°C; 34.85 ppt; 3 Jul. 1992; BIOICE 2079 ; IINH 39616 • 6; 67.375° N, 17.3847° W; RP sledge; depth 893 m; -0.55°C; 34.84 ppt; 4 Jul. 1992; BIOICE 2081 ; IINH 39436 • 7; 67.3675° N, 17.4092° W; detr. sledge (Sneli); depth 894 m; -0.55°C; 34.84 ppt; 4 Jul. 1992; BIOICE 2082 ; IINH 39438 • 13; 67.2614° N, 17.455° W; RP sledge; depth 735 m; -0.41°C; 34.86 ppt; 4 Jul. 1992; BIOICE 2087 ; IINH 39437 • 1; 67.2422° N, 17.8614° W; RP sledge; depth 617 m; -0.44°C; 34.87 ppt; 4 Jul. 1992; BIOICE 2088 ; IINH 39439 • 3; 67.1939° N, 17.7789° W; RP sledge; depth 405 m; -0.31°C; 34.86 ppt; 5 Jul. 1992; BIOICE 2091 ; IINH 39440 • 3; 67.2069° N, 17.7583° W; detr. sledge (Sneli); depth 407 m; -0.31°C; 34.86 ppt; 5 Jul. 1992; BIOICE 2093 ; IINH 39442 • 1; 67.0342° N, 17.5717° W; detr. sledge (Sneli); depth 303 m; 1.67°C; 34.85 ppt; 5 Jul. 1992; BIOICE 2094 ; IINH 39443 • 1; 67.0194° N, 17.585° W; RP sledge; depth 300 m; 1.67°C; 34.85 ppt; 5 Jul. 1992; BIOICE 2096 ; IINH 39441 • 1; 67.8372° N, 19.5581° W; RP sledge; depth 905 m; -0.55°C; 34.87 ppt; 6 Jul. 1992; BIOICE 2107 ; IINH 39444 • 1; 67.7644° N, 19.4839° W; RP sledge; depth 749 m; -0.53°C; 34.86 ppt; 6 Jul. 1992; BIOICE 2108 ; IINH 39447 • 3; 67.7253° N, 19.5083° W; detr. sledge (Sneli); depth 588 m; -0.54°C; 34.86 ppt; 6 Jul. 1992; BIOICE 2111 ; IINH 39445 • 2; 67.7292° N, 19.4722° W; RP sledge; depth 603 m; -0.54°C; 34.86 ppt; 7 Jul. 1992; BIOICE 2113 ; IINH 39448 • 35; 67.7047° N, 19.4669° W; RP sledge; depth 489 m; -0.52°C; 34.86 ppt; 7 Jul. 1992; BIOICE 2114 ; IINH 39449 • 14; 67.7° N, 19.4397° W; detr. sledge (Sneli); depth 495 m; -0.52°C; 34.86 ppt; 7 Jul. 1992; BIOICE 2116 ; IINH 39450 • 32; 67.4756° N, 19.5386° W; detr. sledge (Sneli); depth 405 m; -0.25°C; 34.86 ppt; 7 Jul. 1992; BIOICE 2117 ; IINH 39451 • 6; 67.1189° N, 19.8775° W; RP sledge; depth 284 m; 0.5°C; 34.82 ppt; 7 Jul. 1992; BIOICE 2119 ; IINH 39453 • 12; 67.1275° N, 19.9042° W; detr. sledge (Sneli); depth 280 m; 0.5°C; 34.82 ppt; 7 Jul. 1992; BIOICE 2121 ; IINH 39459 • 27; 67.1858° N, 19.5672° W; detr. sledge (Sneli); depth 346 m; 0.15°C; 34.84 ppt; 7 Jul. 1992; BIOICE 2122 ; IINH 39454 • 35; 67.1839° N, 19.5736° W; RP sledge; depth 347 m; 0.15°C; 34.84 ppt; 7 Jul. 1992; BIOICE 2124 ; IINH 39452 • 25; 66.7744° N, 18.7042° W; detr. sledge (Sneli); depth 678 m; -0.08°C; 34.86 ppt; 8 Jul. 1992; BIOICE 2129 ; IINH 39622 • 3; 66.7661° N, 18.7081° W; RP sledge; depth 660 m; -0.08°C; 34.86 ppt; 8 Jul. 1992; BIOICE 2131 ; IINH 39623 • 35; 66.7514° N, 18.925° W; RP sledge; depth 492 m; 0.12°C; 34.85 ppt; 8 Jul. 1992; BIOICE 2132 ; IINH 39624 • 16; 66.7197° N, 19.3303° W; RP sledge; depth 297 m; 2.11°C; 34.83 ppt; 8 Jul. 1992; BIOICE 2137 ; IINH 39455 • 3; 66.7128° N, 19.3186° W; detr. sledge (Sneli); depth 300 m; 2.11°C; 34.83 ppt; 8 Jul. 1992; BIOICE 2139 ; IINH 39625 • 18; 66.8586° N, 20.1614° W; RP sledge; depth 399 m; 0.12°C; 34.84 ppt; 8 Jul. 1992; BIOICE 2143 ; IINH 39456 • 3; 66.8581° N, 20.1603° W; detr. sledge (Sneli); depth 398 m; 0.12°C; 34.84 ppt; 8 Jul. 1992; BIOICE 2145 ; IINH 39457 • 9; 66.7592° N, 20.0878° W; RP sledge; depth 293 m; 3°C; 34.86 ppt; 9 Jul. 1992; BIOICE 2149 ; IINH 39458 • 7; 64.2158° N, 25.2883° W; RP sledge; depth 265 m; 6.36°C; 35.09 ppt; 3 Sep. 1992; BIOICE 2219 ; IINH 39460 • 7; 64.1° N, 9.05° W; detr. sledge (Sneli); depth 991 m; unknown; unknown; 2 May1993; BIOICE 2315 ; IINH 39461 • 2; 64.0333° N, 9.6167° W; detr. sledge (Sneli); depth 772 m; unknown; unknown; 2 May1993; BIOICE 2318 ; IINH 39626 • 4; 64.0167° N, 9.6167° W; RP sledge; depth 776 m; unknown; unknown; 2 May1993; BIOICE 2319 ; IINH 39627 • 10; 63.9333° N, 10° W; detr. sledge (Sneli); depth 639 m; unknown; unknown; 3 May1993; BIOICE 2321 ; IINH 39462 • 5; 63.75° N, 10.1833° W; RP sledge; depth 555 m; unknown; unknown; 3 May1993; BIOICE 2325 ; IINH 39463 • 1; 63.35° N, 10.85° W; detr. sledge (Sneli); depth 430 m; unknown; unknown; 3 May1993; BIOICE 2327 ; IINH 39464 • 1; 63.0833° N, 11.35° W; detr. sledge (Sneli); depth 453 m; unknown; unknown; 3 May1993; BIOICE 2329 ; IINH 39465 • 8; 63.0833° N, 11.3333° W; RP sledge; depth 453 m; unknown; unknown; 3 May1993; BIOICE 2330 ; IINH 39466 • 3; 62.7167° N, 12.7167° W; RP sledge; depth 803 m; unknown; unknown; 4 May 1993; BIOICE 2334 ; IINH 39467 • 2; 62.4667° N, 12.9° W; detr. sledge (Sneli); depth 1105 m; unknown; unknown; 5 May 1993; BIOICE 2335 ; IINH 39468 • 1; 62.45° N, 12.8833° W; Agassiz trawl; depth 1090 m; unknown; unknown; 5 May 1993; BIOICE 2336 ; IINH 39469 • 1; 62.1333° N, 13.3333° W; RP sledge; depth 1302 m; unknown; unknown; 5 May 1993; BIOICE 2340 ; IINH 39470 • 1; 63.7833° N, 11.85° W; detr. sledge (Sneli); depth 355 m; unknown; unknown; 6 May 1993; BIOICE 2351 ; IINH 39628 • 8; 64.2833° N, 10.8167° W; RP sledge; depth 391 m; unknown; unknown; 7 May 1993; BIOICE 2360 ; IINH 39471 • 3; 64.45° N, 10.45° W; detr. sledge (Sneli); depth 498 m; unknown; unknown; 7 May 1993; BIOICE 2361 ; IINH 39472 • 5; 64.4833° N, 10.4333° W; RP sledge; depth 495 m; unknown; unknown; 7 May 1993; BIOICE 2362 ; IINH 39473 • 1; 64.6333° N, 9.7167° W; RP sledge; depth 719 m; unknown; unknown; 8 May 1993; BIOICE 2367 ; IINH 39474 • 2; 64.6667° N, 9.5667° W; detr. sledge (Sneli); depth 920 m; unknown; unknown; 8 May 1993; BIOICE 2369 ; IINH 39475 • 2; 64.75° N, 10.5167° W; detr. sledge (Sneli); depth 449 m; unknown; unknown; 8 May 1993; BIOICE 2371 ; IINH 39476 • 6; 64.8667° N, 11.4333° W; detr. sledge (Sneli); depth 476 m; unknown; unknown; 9 May 1993; BIOICE 2372 ; IINH 39477 • 1; 64.9167° N, 11.6333° W; Triangle dredge; depth 305 m; unknown; unknown; 10 May1993; BIOICE 2375 ; IINH 39478 • 2; 64.3333° N, 12.45° W; Triangle dredge; depth 403 m; unknown; unknown; 10 May1993; BIOICE 2380 ; IINH 39479 • 1; 63.1417° N, 19.9556° W; RP sledge; depth 1016 m; 4.8°C; 35 ppt; 3 Jul. 1993; BIOICE 2430 ; IINH 39631 • 1; 63.0689° N, 19.8592° W; detr. sledge (Sneli); depth 1207 m; 4.45°C; 34.99 ppt; 3 Jul. 1993; BIOICE 2431 ; IINH 39630 • 1; 66.2728° N, 22.9525° W; Triangle dredge; depth 77 m; 4.83°C; 34.6 ppt; 14 Jul. 1993; BIOICE 2551 ; IINH 39480 • 1; 67.0522° N, 23.9881° W; detr. sledge (Sneli); depth 370 m; -0.15°C; 34.85 ppt; 15 Jul. 1993; BIOICE 2570 ; IINH 39481 • 16; 67.1014° N, 24.0992° W; detr. sledge (Sneli); depth 495 m; -0.47°C; 34.86 ppt; 15 Jul. 1993; BIOICE 2572 ; IINH 39482 • 11; 67.1097° N, 24.085° W; RP sledge; depth 489 m; -0.47°C; 34.86 ppt; 15 Jul. 1993; BIOICE 2573 ; IINH 39483 • 3; 67.4214° N, 22.4072° W; RP sledge; depth 450 m; -0.46°C; 34.87 ppt; 16 Jul. 1993; BIOICE 2585 ; IINH 39484 • 2; 67.4181° N, 22.4347° W; detr. sledge (Sneli); depth 450 m; -0.46°C; 34.87 ppt; 16 Jul. 1993; BIOICE 2586 ; IINH 39485 • 16; 67.3406° N, 22.5425° W; detr. sledge (Sneli); depth 356 m; -0.47°C; 34.87 ppt; 16 Jul. 1993; BIOICE 2588 ; IINH 39486 • 2; 67.3381° N, 22.5525° W; RP sledge; depth 355 m; -0.47°C; 34.87 ppt; 16 Jul. 1993; BIOICE 2589 ; IINH 39639 • 3; 67.2147° N, 22.4294° W; RP sledge; depth 333 m; 0.12°C; 34.84 ppt; 16 Jul. 1993; BIOICE 2591 ; IINH 39640 • 1; 67.0028° N, 22.5714° W; RP sledge; depth 203 m; 5.41°C; 34.99 ppt; 16 Jul. 1993; BIOICE 2595 ; IINH 39641 • 4; 66.6539° N, 20.9364° W; Agassiz trawl; depth 335 m; 1.49°C; 34.76 ppt; 17 Jul. 1993; BIOICE 2601 ; IINH 39642 • 17; 66.9417° N, 17.9389° W; detr. sledge (Sneli); depth 433 m; -0.31°C; 34.89 ppt; 10 Jul. 1994; BIOICE 2603 ; IINH 39487 • 21; 66.9344° N, 17.9397° W; RP sledge; depth 435 m; -0.31°C; 34.89 ppt; 10 Jul. 1994; BIOICE 2606 ; IINH 39488 • 3; 67.1375° N, 17.0306° W; RP sledge; depth 362 m; -0.36°C; 34.89 ppt; 11 Jul. 1994; BIOICE 2613 ; IINH 39649 • 2; 67.1894° N, 16.8589° W; detr. sledge (Sneli); depth 528 m; -0.52°C; 34.9 ppt; 11 Jul. 1994; BIOICE 2615 ; IINH 39489 • 6; 67.2761° N, 16.6592° W; detr. sledge (Sneli); depth 597 m; -0.55°C; 34.9 ppt; 11 Jul. 1994; BIOICE 2618 ; IINH 39650 • 2; 67.2906° N, 16.6381° W; RP sledge; depth 600 m; -0.55°C; 34.9 ppt; 11 Jul. 1994; BIOICE 2619 ; IINH 39651 • 3; 67.5758° N, 16.5406° W; RP sledge; depth 894 m; -0.55°C; 34.9 ppt; 11 Jul. 1994; BIOICE 2622 ; IINH 39652 • 3; 67.4331° N, 16.1753° W; detr. sledge (Sneli); depth 748 m; -0.56°C; 34.9 ppt; 12 Jul. 1994; BIOICE 2626 ; IINH 39490 • 19; 67.4286° N, 16.1703° W; RP sledge; depth 748 m; -0.56°C; 34.9 ppt; 12 Jul. 1994; BIOICE 2627 ; IINH 39491 • 4; 67.3364° N, 16.1194° W; detr. sledge (Sneli); depth 602 m; -0.55°C; 34.9 ppt; 12 Jul. 1994; BIOICE 2629 ; IINH 39492 • 4; 67.3894° N, 15.9775° W; detr. sledge (Sneli); depth 699 m; -0.57°C; 34.9 ppt; 12 Jul. 1994; BIOICE 2631 ; IINH 39493 • 3; 67.5044° N, 15.8069° W; detr. sledge (Sneli); depth 795 m; -0.57°C; 34.9 ppt; 12 Jul. 1994; BIOICE 2634 ; IINH 39648 • 2; 67.9364° N, 15.3725° W; detr. sledge (Sneli); depth 1097 m; -0.61°C; 34.91 ppt; 13 Jul. 1994; BIOICE 2640 ; IINH 39643 • 3; 67.9419° N, 15.3581° W; RP sledge; depth 1098 m; -0.61°C; 34.91 ppt; 13 Jul. 1994; BIOICE 2642 ; IINH 39647 • 5; 68.0208° N, 15.2519° W; RP sledge; depth 1202 m; -0.64°C; 34.91 ppt; 13 Jul. 1994; BIOICE 2644 ; IINH 39494 • 5; 68.0922° N, 15.3258° W; detr. sledge (Sneli); depth 1304 m; -0.72°C; 34.91 ppt; 13 Jul. 1994; BIOICE 2647 ; IINH 39495 • 8; 68.0858° N, 15.3181° W; RP sledge; depth 1306 m; -0.72°C; 34.91 ppt; 14 Jul. 1994; BIOICE 2648 ; IINH 39496 • 6; 67.6103° N, 15.1283° W; RP sledge; depth 910 m; -0.57°C; 34.91 ppt; 14 Jul. 1994; BIOICE 2652 ; IINH 39646 • 18; 67.3° N, 14.9581° W; RP sledge; depth 549 m; -0.55°C; 34.9 ppt; 14 Jul. 1994; BIOICE 2655 ; IINH 39497 • 1; 67.2389° N, 15.4706° W; detr. sledge (Sneli); depth 262 m; 2.69°C; 34.9 ppt; 15 Jul. 1994; BIOICE 2659 ; IINH 39498 • 4; 67.2447°N, 15.4783° W; RP sledge; depth 277 m; 2.69°C; 34.9 ppt; 15 Jul. 1994; BIOICE 2660 ; IINH 39499 • 5; 67.2258° N, 16.1578° W; detr. sledge (Sneli); depth 350 m; -0.03°C; 34.87 ppt; 15 Jul. 1994; BIOICE 2662 ; IINH 39645 • 12; 67.0561° N, 16.2747° W; detr. sledge (Sneli); depth 382 m; 0.07°C; 34.88 ppt; 15 Jul. 1994; BIOICE 2664 ; IINH 39500 • 2; 67.0575° N, 16.2675° W; RP sledge; depth 382 m; 0.07°C; 34.88 ppt; 15 Jul. 1994; BIOICE 2666 ; IINH 39501 • 1; 66.8389° N, 16.2706° W; RP sledge; depth 227 m; 2.78°C; 34.89 ppt; 15 Jul. 1994; BIOICE 2673 ; IINH 39644 • 2; 66.2558° N, 17.3339° W; detr. sledge (Sneli); depth 178 m; 3.82°C; 34.88 ppt; 16 Jul. 1994; BIOICE 2681 ; IINH 39503 • 3; 66.2594° N, 17.3356° W; RP sledge; depth 181 m; 3.82°C; 34.88 ppt; 16 Jul. 1994; BIOICE 2682 ; IINH 39504 • 12; 67.0908° N, 20.1411° W; RP sledge; depth 284 m; -0.01°C; 34.86 ppt; 30 Jul. 1995; BIOICE 2736 ; IINH 39745 • 5; 67.3208° N, 19.7114° W; detr. sledge (Sneli); depth 352 m; -0.38°C; 34.88 ppt; 30 Jul. 1995; BIOICE 2737 ; IINH 39743 • 2; 67.6439° N, 20.2722° W; detr. sledge (Sneli); depth 503 m; -0.6°C; 34.89 ppt; 30 Jul. 1995; BIOICE 2740 ; IINH 39741 • 8; 67.6583° N, 20.2411° W; RP sledge; depth 514 m; -0.6°C; 34.89 ppt; 30 Jul. 1995; BIOICE 2741 ; IINH 39739 • 1; 68.0203° N, 20.6578° W; detr. sledge (Sneli); depth 970 m; -0.57°C; 34.89 ppt; 31 Jul. 1995; BIOICE 2749 ; IINH 39738 • 2; 67.9206° N, 18.3222° W; Triangle dredge; depth 610 m; -0.39°C; 34.88 ppt; 1 Aug. 1995; BIOICE 2756 ; IINH 39736 • 5; 67.93° N, 17.7072° W; RP sledge; depth 1130 m; -0.53°C; 34.89 ppt; 1 Aug. 1995; BIOICE 2762 ; IINH 39734 • 4; 69.2614° N, 14.2172° W; detr. sledge (Sneli); depth 1633 m; -0.86°C; 34.9 ppt; 3 Aug. 1995; BIOICE 2772 ; IINH 39735 • 9; 69.2581° N, 14.2811° W; RP sledge; depth 1629 m; -0.86°C; 34.9 ppt; 3 Aug. 1995; BIOICE 2773 ; IINH 39737 • 6; 68.6222° N, 14.6861° W; RP sledge; depth 1556 m; -0.78°C; 34.9 ppt; 3 Aug. 1995; BIOICE 2777 ; IINH 39740 • 15; 68.345° N, 15.7858° W; RP sledge; depth 1413 m; -0.74°C; 34.89 ppt; 4 Aug. 1995; BIOICE 2779 ; IINH 39733 • 14; 67.4156° N, 18.2417° W; RP sledge; depth 693 m; -0.41°C; 34.88 ppt; 5 Aug. 1995; BIOICE 2786 ; IINH 39744 • 2; 67.36° N, 18.3344° W; RP sledge; depth 561 m; -0.29°C; 34.87 ppt; 5 Aug. 1995; BIOICE 2787 ; IINH 39742 • 1; 63.4167° N, 16.8458° W; detr. sledge (Sneli); depth 277 m; 7.21°C; 35.15 ppt; 25 Aug. 1995; BIOICE 2829 ; IINH 39746 • 1; 62.3472° N, 16.9917° W; RP sledge; depth 2074 m; 2.34°C; 34.96 ppt; 29 Aug. 1995; BIOICE 2856 ; IINH 39505 • 3; 61.7286° N, 16.9633° W; RP sledge; depth 2295 m; 2.6°C; 34.96 ppt; 30 Aug. 1995; BIOICE 2860 ; IINH 39506 • 1; 61.1717° N, 18.0492° W; RP sledge; depth 2400 m; 2.07°C; 34.95 ppt; 30 Aug. 1995; BIOICE 2863 ; IINH 39507 • 5; 67.1442° N, 22.7658° W; detr. sledge (Sneli); depth 290 m; 0.5°C; 34.87 ppt; 20 Aug. 1999; BIOICE 3094 ; IINH 39760 • 2; 67.1839° N, 21.7689° W; RP sledge; depth 230 m; 1.3°C; 34.87 ppt; 21 Aug. 1999; BIOICE 3099 ; IINH 39761 • 12; 67.3264° N, 21.1819° W; RP sledge; depth 314 m; 0.23°C; 34.86 ppt; 21 Aug. 1999; BIOICE 3104 ; IINH 39775 • 3; 67.3219° N, 20.7528° W; RP sledge; depth 328 m; -0.21°C; 34.88 ppt; 21 Aug. 1999; BIOICE 3108 ; IINH 39774 • 3; 67.5253° N, 20.1039° W; RP sledge; depth 439 m; -0.51°C; 34.89 ppt; 21 Aug. 1999; BIOICE 3110 ; IINH 39773 • 2; 67.705° N, 19.7986° W; RP sledge; depth 611 m; -0.57°C; 34.89 ppt; 22 Aug. 1999; BIOICE 3115 ; IINH 39772 • 2; 68.0736° N, 18.1103° W; detr. sledge (Sneli); depth 748 m; -0.28°C; 34.88 ppt; 22 Aug. 1999; BIOICE 3121 ; IINH 39771 • 11; 68.1561° N, 17.9856° W; RP sledge; depth 875 m; -0.48°C; 34.89 ppt; 22 Aug. 1999; BIOICE 3124 ; IINH 39770 • 2; 68.7325° N, 16.5853° W; RP sledge; depth 1715 m; unknown; unknown; 23 Aug. 1999; BIOICE 3127 ; IINH 39769 • 1; 68.2575° N, 20.0189° W; RP sledge; depth 1112 m; unknown; unknown; 24 Aug. 1999; BIOICE 3136 ; IINH 39768 • 1; 67.875° N, 22.2581° W; RP sledge; depth 768 m; -0.46°C; 34.89 ppt; 25 Aug. 1999; BIOICE 3140 ; IINH 40093 • 1; 66.6647° N, 27.7208° W; detr. sledge (Sneli); depth 345 m; 0.23°C; 34.8 ppt; 26 Aug. 1999; BIOICE 3151 ; IINH 39767 • 1; 60.9264° N, 22.7897° W; detr. sledge (Sneli); depth 1898 m; 2.98°C; 34.99 ppt; 26 Jul. 2000; BIOICE 3166 ; IINH 39766 • 1; 60.9244° N, 22.7906° W; RP sledge; depth 1897 m; 2.98°C; 34.99 ppt; 26 Jul. 2000; BIOICE 3167 ; IINH 39765 • 1; 61.2403° N, 27.9272° W; Triangle dredge; depth 1005 m; 4.6°C; 34.97 ppt; 31 Jul. 2000; BIOICE 3183 ; IINH 39764 • 8; 65.6508° N, 9.1203° W; detr. sledge (Sneli); depth 818 m; -0.58°C; 34.9 ppt; 7 Jul. 2001; BIOICE 3194 ; IINH 39763 • 6; 65.5139° N, 8.525° W; RP sledge; depth 935 m; -0.63°C; 34.9 ppt; 8 Jul. 2001; BIOICE 3198 ; IINH 39762 • 17; 64.8508° N, 7.8686° W; Agassiz trawl; depth 2612 m; -0.83°C; 34.91 ppt; 8 Jul. 2001; BIOICE 3203 ; IINH 39779 • 2; 65.7425° N, 7.0264° W; RP sledge; depth 2002 m; -0.87°C; 34.91 ppt; 9 Jul. 2001; BIOICE 3208 ; IINH 39777 • 9; 66.235° N, 6.8714° W; RP sledge; depth 2544 m; -0.87°C; 34.91 ppt; 9 Jul. 2001; BIOICE 3210 ; IINH 39778 • 22; 67.1072° N, 7.4533° W; RP sledge; depth 2014 m; -0.86°C; 34.91 ppt; 11 Jul. 2001; BIOICE 3216 ; IINH 39780 • 55; 67.2553° N, 8.4683° W; RP sledge; depth 1642 m; -0.82°C; 34.91 ppt; 11 Jul. 2001; BIOICE 3219 ; IINH 39782 • 3; 67.9047° N, 8.1094° W; RP sledge; depth 1525 m; -0.83°C; 34.91 ppt; 11 Jul. 2001; BIOICE 3222 ; IINH 39776 • 1; 68.5794° N, 8.2653° W; RP sledge; depth 1993 m; -0.86°C; 34.91 ppt; 12 Jul. 2001; BIOICE 3225 ; IINH 39781 • 1; 62.6478° N, 14.2531° W; detr. sledge (Sneli); depth 1596 m; 2.64°C; 34.99 ppt; 9 Sep. 2002; BIOICE 3535 ; IINH 39783 • 1; 63.3803° N, 29.9236° W; RP sledge; depth 2359 m; 3.06°C; 34.92 ppt; 5 Sep. 2003; BIOICE 3573 ; IINH 39784 • 9; 66.4942° N, 9.7556° W; RP sledge; depth 1475 m; -0.78°C; 34.9 ppt; 14 Jul. 2004; BIOICE 3621 ; IINH 39803 • 5; 66.9967° N, 8.8203° W; RP sledge; depth 1628 m; -0.82°C; 34.9 ppt; 14 Jul. 2004; BIOICE 3624 ; IINH 39801 • 1; 66.9842° N, 8.8017° W; Agassiz trawl; depth 1630 m; -0.82°C; 34.9 ppt; 15 Jul. 2004; BIOICE 3625 ; IINH 39804 • 7; 67.3369° N, 9.5583° W; Agassiz trawl; depth 1616 m; -0.81°C; 34.9 ppt; 15 Jul. 2004; BIOICE 3627 ; IINH 39802 • 3; 67.3314° N, 9.5544° W; RP sledge; depth 1609 m; -0.81°C; 34.9 ppt; 15 Jul. 2004; BIOICE 3628 ; IINH 39797 • 2; 68.0133° N, 9.2539° W; Agassiz trawl; depth 1859 m; -0.82°C; 34.9 ppt; 16 Jul. 2004; BIOICE 3631 ; IINH 39796 • 20; 68.0256° N, 9.255° W; RP sledge; depth 1727 m; -0.82°C; 34.9 ppt; 16 Jul. 2004; BIOICE 3632 ; IINH 39805 • 1; 68.42° N, 8.97° W; RP sledge; depth 1952 m; -0.84°C; 34.9 ppt; 17 Jul. 2004; BIOICE 3633 ; IINH 39798 • 5; 68.8364° N, 9.245° W; RP sledge; depth 1844 m; -0.81°C; 34.9 ppt; 17 Jul. 2004; BIOICE 3636 ; IINH 39800 • 1; 68.4589° N, 10.1542° W; RP sledge; depth 2069 m; -0.8°C; 34.9 ppt; 17 Jul. 2004; BIOICE 3637 ; IINH 39799 • 2; 68.4508° N, 10.1828° W; Agassiz trawl; depth 2065 m; -0.8°C; 34.9 ppt; 18 Jul. 2004; BIOICE 3638 ; IINH 39785 • 6; 67.9675° N, 10.0503° W; RP sledge; depth 1915 m; -0.82°C; 34.9 ppt; 18 Jul. 2004; BIOICE 3640 ; IINH 39787 • 5; 66.9856° N, 10.7206° W; RP sledge; depth 1450 m; -0.77°C; 34.92 ppt; 19 Jul. 2004; BIOICE 3641 ; IINH 39788 • 4; 67.4061° N, 10.6831° W; RP sledge; depth 1703 m; -0.81°C; 34.91 ppt; 21 Jul. 2004; BIOICE 3645 ; IINH 39790 • 7; 68.9528° N, 10.5556° W; RP sledge; depth 2215 m; -0.79°C; 34.9 ppt; 22 Jul. 2004; BIOICE 3648 ; IINH 39786 • 1; 68.9231° N, 12.6275° W; detr. sledge (Sneli); depth 1900 m; -0.81°C; 34.9 ppt; 22 Jul. 2004; BIOICE 3650 ; IINH 39795 • 3; 69.0667° N, 13.5736° W; RP sledge; depth 1678 m; -0.81°C; 34.9 ppt; 22 Jul. 2004; BIOICE 3652 ; IINH 39794 • 1; 68.7033° N, 14.3086° W; Agassiz trawl; depth 1492 m; -0.8°C; 34.9 ppt; 23 Jul. 2004; BIOICE 3654 ; IINH 39792 • 2; 68.6933° N, 14.3206° W; RP sledge; depth 1489 m; -0.8°C; 34.9 ppt; 23 Jul. 2004; BIOICE 3655 ; IINH 39806 • 1; 68.7864° N, 15.3186° W; RP sledge; depth 1492 m; -0.72°C; 34.9 ppt; 23 Jul. 2004; BIOICE 3656 ; IINH 39789 • 2; 67.6583° N, 20.0344° W; Triangle dredge; depth 505 m; -0.5°C; 34.9 ppt; 24 Jul. 2004; BIOICE 3662 ; IINH 39791 • 5; 67.6561° N, 20.0778° W; RP sledge; depth 493 m; -0.5°C; 34.9 ppt; 24 Jul. 2004; BIOICE 3663 ; IINH 39793

Description

Test shape elongate, cylindrical, distinctly to slightly curved, evenly tapering to a pointed end; slightly nodular in latest chambers. Length of test 2–3 mm, the largest nearly 4 mm; test width 0.3–0.5 mm. Chambers subglobular, sometimes slightly cylindrical in the latest chambers, rectilinearly arranged, minimally embracing; number of chambers 9–14, sometimes up to 21. Initial chambers in microsphere are rectilinear. Sutures horizontal. Aperture radial, nearly central, slightly raised, sometimes protruding, comprising up to 12 tines, symmetrically arranged, usually fused in the center, sometimes only partly fused. Surface smooth, except for a very short basal knob or spine. Secondary surface laminations cover the whole test (ortho-lamellar) or partially (plesio-lamellar), wall finely perforated and thick.

Remarks

Prolocular size is commonly around 0.1 mm, but ranges continuously from about 0.03 to 0.14 mm. The secondary laminations result in successive thickening of the whole test as new chambers are added ( Eiland & Guðmundsson 2004), which partially levels out the originally nodular character of the initial part of the test as new chambers and laminations are added.

Figures

Fig. 5. Dentalina frobisherensis Loeblich & Tappan, 1953. A–C. Megalosphere (BIOICE 3104, IINH 39775), side view (A), details of initial end (B) and aperture (C) stained with indigo blue. D. Megalosphere (BIOICE 3108, IINH 39774), aperture stained with indigo blue. Light source combination of incident light and dark field. Scale bars = 0.25 mm.