| N. microtretus | N. parvipectoralis | N. pelagica sp. nov. | N. similis sp. nov. | ||
---|---|---|---|---|---|---|
Holotype | n = 41 | Holotype | Types (n = 3) | Holotype | Types (n = 4) | |
Total vertebrae | 151 | 138-148 | 169 | 169 | 261 | 260-265 |
Predorsal vertebrae | 24 | 18-23 | 31 | 31-34 | 32 | 32-36 |
Preanal vertebrae | 56 | 53-57 | 53 | 52-54 | 68 | 68-70 |
Prepectoral pores | - | 12-14 | 14 | 14 | 16 | 15 or 16 |
Predorsal pores | - | 19-24 | 36 | 36 or 37 | 36 | 35-37 |
Preanal pores | - | 53-59 | 57 | 56 or 57 | 71 | 70 or 71 |
Infraorbital pores | 5 + 1 | 5 + 1 | 5 + 1 | 5 + 1 | 5 + 1 | 5 + 1 |
Supraorbital pores | 1 + 4 | 1 + 4 | 1 + 4 | 1 + 4 | 1 + 4 | 1 + 4 |
Mandibular pores | 5 | 6 or 7 (mainly 6) | 7 | 7 | 7 | 7 |
Preopercular pores | 2 | 1 or 2 (mainly 1) | 2 | 2 | 2 | 2 |
Supratemporal pores | 3 | 3 | 3 | 3 | 3 | 3 |
Frontal pore | 1 | 1 | 1 | 1 | 1 | 1 |