Table 3 Morphometric data of four Neenchelys species, expressed as percentage of total length, trunk length, and head length
N. microtretus | N. parvipectoralis | N. pelagica sp. nov. | N. similis sp. nov. | ||||
|---|---|---|---|---|---|---|---|
Holotype | n = 16 | Holotype | Types (n = 3) | Holotype | Types (n = 4) | ||
Total length (mm) | 183 | 163-302 | 392 | 327-392 | 677 | 580-756 | |
% Total length | Mean (range) | SD | Mean (range) | Mean (range) | |||
Head length | 10.9 | 10.7 (10.1-11.3) | 0.3 | 10 | 10.0 (9.8-10.2) | 6.1 | 6.4 (6.1-6.6) |
Predorsal length | 19.1 | 16.7 (15.7-17.5) | 0.6 | 22.4 | 22.2 (20.8-23.3) | 14 | 14.0 (12.9-14.8) |
Trunk length | 31.1 | 32.1 (30.6-34.0) | 1.1 | 23.9 | 24.0 (23.1-25.0) | 21.4 | 21.2 (20.7-21.8) |
Preanal length | 42.1 | 43.1 (41.4-44.4) | 1 | 33.9 | 34.0 (33.3-34.8) | 28.1 | 27.7 (26.7-28.3) |
Tail length | 57.9 | 57.5 (55.6-62.9) | 1.8 | 66.1 | 66.2 (65.7-66.7) | 72.4 | 72.4 (72.4-72.9) |
% Trunk length | |||||||
Gill opening to dorsal fin origin | 26.3 | 19.3 (15.3-22.3) | 1.9 | 52 | 50.6 (45.8-54.0) | 36.9 | 36.1 (31.6-38.6) |
% Head length | |||||||
Pectoral fin length | - | 2.7 (1.4-4.2) | 1.1 | 22.9 | 23.6 (21.6-26.2) | 26.0 | 25.0 (24.0-26.0) |
Snout length | 17.5 | 15.5 (13.8-17.5) | 1 | 18.1 | 17.9 (17.4-18.1) | 18.3 | 17.2 (15.6-17.5) |
Eye diameter | 5 | 6.2 (5.0-7.1) | 0.5 | 7.4 | 6.6 (6.1-7.4) | 5.3 | 5.4 (4.9-5.9) |
Upper jaw length | 27.5 | 27.7 (24.1-30.8) | 2.1 | 28.2 | 28.3 (27.7-29.1) | 28.9 | 30.1 (27.2-32.8) |
Interorbital width | - | 11.3 (8.0-13.1) | 1.4 | 13 | 12.4 (12.0-13.0) | 9.2 | 7.7 (6.3-9.2) |
Postorbital length | - | 79.6 (74.7-86.1) | 3.7 | 74.3 | 75.4 (70.3-81.7) | 81.9 | 79.3 (77.2-81.9) |
Gill opening height | - | 10.0 (6.7-13.5) | 1.6 | 7.9 | 7.3 (6.6-7.9) | 8.2 | 6.8 (5.2-8.2) |
Depth at head | 35 | 37.8 (33.5-41.7) | 2.5 | 35.9 | 32.3 (30.3-35.9) | 34.9 | 31.7 (29.7-34.9) |
Depth at anus | - | 38.8 (31.6-44.0) | 3.8 | 36.1 | 33.6 (32.1-36.1) | 37.8 | 35.0 (32.9-35.4) |
Width at anus | - | 29.1 (24.1-34.6) | 2.5 | 32.3 | 29.7 (26.7-30.0) | 24.8 | 24.7 (22.9-28.0) |