A new species of pencil smelt Nansenia boreacrassicauda (Microstomatidae, Argentiniformes) from the North Atlantic Ocean
Author
Poulsen, Jan Yde
text
Zootaxa
2015
4020
3
517
532
journal article
39770
10.11646/zootaxa.4020.3.6
9f7683c5-94a3-463a-aa3c-7bf0e9c26b23
1175-5326
238261
13C4AF61-8BC8-44D5-B448-194AEEBCCFCC
TABLE 1. Morphometrics and meristics of Nansenia boreacrassicauda sp.n type specimens.| Specimen | ZMUC P192172 | ZMH 122532 | ZMH 122530 | ZMH 122553 | ZMH 120802 | ZMH 120833 |
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| Status | Holotype | Paratype | Paratype | Paratype | Paratype | Paratype |
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| Locality | 65°32'N, 30°57'W | 57°46'N, 18°5'W | 57°34'N, 18°12'W | 57°43'N, 17°40'W | 49°48'N, 25°54'W | 43°42'N, 28°27'W |
|---|
| TL | 249.0 | 228.2 | 245.3 | 250.0 | 288.5 | 285.1 |
|---|
| SL(mm) | 232.0 | 197.2 | 226.0 | 230.8 | 265.2 | 268.0 |
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| % SL | | | | | | |
|---|
| HL | 21.2 | 21.9 | 20.9 | 21.2 | 20.2 | 20.0 |
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| Predorsal | 47.3 | 46.3 | 45.6 | 46.1 | 47.1 | 47.0 |
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| Preanal | 79.0 | 81.6 | 81.0 | 80.2 | 81.1 | 79.1 |
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| Prepelvic | 56.7 | 57.3 | 56.2 | 57.6 | 55.8 | 57.1 |
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| Snoutlength | 3.8 | 4.7 | 4.6 | 4.4 | 4.1 | 3.9 |
|---|
| Eyediameter | 7.4 | 8.6 | 8.2 | 8.6 | 7.9 | 7.9 |
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| Dorsal base length | 9.5 | 12.7 | 11.9 | 11.4 | 13.3 | 11.5 |
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| Anal base length | 7.2 | - | 6.9 | 7.3 | 6.8 | 6.9 |
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| Width at eye | 9.0 | 8.3 | 9.1 | 9.4 | 9.8 | 9.4 |
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| Depth at eye | 11.1 | 12.1 | 11.7 | 13.7 | 13.5 | 14.2 |
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| Depthdorsalfin | 15.4 | 15.4 | 15.6 | 14.6 | 15.8 | 15.6 |
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| Widthatpectoral | 10.3 | 10.0 | 10.6 | 10.2 | 10.5 | 10.8 |
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| Caudaldepth(CPD) | 9.2 | 8.7 | 8.8 | 8.1 | 8.5 | 8.1 |
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| Caudal length (CPL) | 11.6 | 11.0 | 11.0 | 10.3 | 11.1 | 10.1 |
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| Eye(%HL) | 38.3 | 39.4 | 39.1 | 40.6 | 39.3 | 39.4 |
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| CPL | 26.7 | 21.7 | 24.9 | 23.7 | 29.4 | 27.1 |
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| CPD | 21.5 | 17.2 | 20.0 | 18.7 | 22.5 | 22.6 |
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| CPL/CPD | 1.26 | 1.26 | 1.25 | 1.27 | 1.31 | 1.20 |
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| Pre-caudalvertebrae | 25 | 26 | 26 | 27 | 25 | 26 |
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| Caudalvertebrae | 22 | 21 | 21 | 21 | 21 | 21 |
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| Totalvertebrae | 47 | 47 | 47 | 48 | 46 | 47 |
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| Dorsalrays | 11 | 11 | 12 | 11 | 12 | - |
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| Analrays | 9 | - | 10 | 9 | 10 | - |
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| Pectoralrays | 12 | - | 11 | 12 | 11 | - |
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| Pelvicrays | 12 | 11 | 11 | 11 | 12 | - |
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| Branchiostegalrays | 4 | 4 | 4 | 4 | - | - |
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| Lateral line scales | 51 | - | 50 | 49 | 50 | 51 |
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| Gill rakers | 12+1+24 = 37 | 13+1+26 = 40 | 11+1+25 = 37 | 13+1+26 = 40 | 13+1+24 = 38 | 12+1+24 = 37 |
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| Pseudobranchfilaments | 20 | 16 | 17 | 18 | 21 | 15 |
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| Teethvomer | 34 | 40 | 36 | 32 | 38 | 44 |
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| Teethdentary | 138 | 152 | 122 | 116 | 140 | 122 |
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