Published March 31, 2020
| Version v1
Dataset
Open
TABLE 4 in Revision of the Grenadier Genus Coelorinchus (Teleostei: Macrouridae) from the Mascarene Ridge, Western Indian Ocean, with Description of Two New Species
Authors/Creators
- 1. A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii prospect 33, Moscow 119071, Russia; Email: prokartster @ gmail. com; & P. P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Nakhimovsky prospect 36, Moscow 117218, Russia;
- 2. Section of Ichthyology, Institute of Biodiversity Science and Sustainability, California Academy of Sciences,
Description
TABLE 4. Distinctions of Coelorinchus amirantensis, C. paraboliceps and C. yurii.
| Character | Coelorinchus amirantensis | Coelorinchus paraboliceps | Coelorinchus yurii |
|---|---|---|---|
| Snout length, % HL | 46–51 | 40–44 | 38–42 |
| [including data of Shcherbachev et al. (1986)] | |||
| Dorsal contour of snout in lateral view | Horizontal (Fig. 3A) | Convex at level of nasal fossa, gently declining toward the tip (Fig. 14A) | Horizontal (Fig. 16A) |
| Sides of snout in dorsal view | Convex in basal half, straight to Strongly and regularly conweakly concave in front of vex (Fig. 14B) nasal fossa (Figs. 3B–C) | Weakly convex in front of nasal fossa (Fig. 17A) | |
| Tip of snout in dorsal view | Acuminate | Rounded | Apparently acuminate (distal half of terminal scute broken in both known specimens) |
| Terminal scute of snout (medial element) | Elongate, diamond-shaped, 9.9–11.1 % HL (Figs. 3B–C) | Short, rectangular, 3.3 % HL (Fig. 15A) | Diamond-shaped (Fig. 17A) |
| Underside of snout (preoral region) | From almost completely scaled to largely scaleless in anterior third to two-thirds of preoral length | Scaleless except small area behind terminal scute and lateral quarters of posterior third of preoral length | Almost completely scaled |
| Spinules on scales over interorbital region | Arranged in keel-like rows (Fig. 6A) | Mostly irregularly disposed (Fig. 6C) | Mostly irregularly disposed (Fig. 6E) |
| Buttresses of spinules on trunk scales in front and below first dorsal fin | Forming transverse ridges (Figs. 5A–B, 6B) | Forming transverse ridges (Figs. 5G–H, 6D) | Not forming transverse ridges (Figs. 5J–K, 6F) |
| Buttresses of spinules on scales from tail | Not forming transverse ridges (Fig. 7B) | Forming transverse ridges (Fig. 7D) | Not forming transverse ridges (Fig. 7F) |
| Anus–anal length | 1.2–1.9 | 1.7 | 2.8–4.5 |
Notes
Published as part of Prokofiev, Artem M. & Iwamoto, Tomio, 2020, Revision of the Grenadier Genus Coelorinchus (Teleostei: Macrouridae) from the Mascarene Ridge, Western Indian Ocean, with Description of Two New Species, pp. 273 in Proceedings of the California Academy of Sciences 66 (9) on page 273, DOI: 10.5281/zenodo.11105838
Files
Files
(2.8 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:f9a8e74de2470f9b5effc9f36642ace7
|
2.8 kB | Download |
System files
(7.6 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:be493981cb810d4648df1a020fa5d661
|
7.6 kB | Download |