First record of the East Asian fourfinger threadfin, Eleutheronema rhadinum (Jordan & Evermann, 1902), from Zhenjiang, China
Author
Zhong, Liqiang
Author
Wang, Jiang
Author
Wang, Minghua
Author
Li, Daming
Author
Tang, Shengkai
Author
Chen, Xiaohui
text
Cybium
2019
2019-02-28
43
2
209
211
http://dx.doi.org/10.26028/cybium/2019-423-010
journal article
291979
10.26028/cybium/2019-423-010
31ca9502-3565-41a2-84e2-7741f3e98edc
2101-0315
10493369
Table Ⅰ. – Measurements and counts of Eleutheronema rhadinum, caught in Yangzhong County, Zhenjiang, China. | | Motomura et al., |
|---|
| Characters | JSFFRI-18010 | 2002 (n = 18) |
|---|
| Measurements |
|---|
| Total length (mm) | 273.1 | |
|---|
| Standard length (mm) | 219.6 | 82-739 |
|---|
| % Standard length |
|---|
| Head length | 28 | 28-30 (29) |
|---|
| Body depth | 25 | 23-26 (24) |
|---|
| Second body depth | 27 | 24-27 (25) |
|---|
| Body width | 14 | 10-15 (13) |
|---|
| Snout length | 4 | 4-5 (4) |
|---|
| Dermal eye opening | 6 | 5-6 (6) |
|---|
| Orbit diameter | 5 | 6-7 (7) |
|---|
| Interorbital width | 7 | 6-7 (6) |
|---|
| Postorbital length | 19 | 19-20 (19) |
|---|
| Upper jaw length | 14 | 15-16 (16) |
|---|
| Depth of maxilla | 3 | 3 (3) |
|---|
| Length of tooth plate | 8 | 8-9 (8) |
|---|
| Pre-1st dorsal fin length | 34 | 34-36 (35) |
|---|
| Pre-2nd dorsal fin length | 59 | 59-63 (61) |
|---|
| Preanal fin length | 58 | 58-63 (60) |
|---|
| Origin of 1 st dorsal fin to origin of anal fin | 35 | 35-38 (37) |
|---|
| Origin of pelvic fin to origin of anal fin | 23 | 22-26 (24) |
|---|
| Second dorsal-fin base length | 16 | 14-17 (15) |
|---|
| Anal-fin base length | 18 | 17-19 (18) |
|---|
| Length of longest pectoral fin ray (2 nd) | 20 | 20-22 (21) |
|---|
| Length of longest pectoral filament (3 rd) | 20 | 15-27 (21) |
|---|
| Pectoral fin base length | 7 | 6-7 (7) |
|---|
| Longest pelvic fin ray (1 st) | 12 | 12-13 (13) |
|---|
| Length of longest 1st dorsal fin spine (4 th) | 15 | 15-18 (17) |
|---|
| Length of 2nd dorsal fin spine | 7 | 7-9 (7) |
|---|
| Length of longest 2nd dorsal fin ray (2nd) | 19 | 15-21 (19) |
|---|
| Length of longest anal fin spine (3 rd) | 7 | 6-8 (7) |
|---|
| Length of longest anal fin ray (2 nd) | 17 | 16-19 (17) |
|---|
| Caudal peduncle length | 24 | 24-26 (25) |
|---|
| Caudal peduncle depth | 14 | 10-12 (11) |
|---|
| Length of upper caudal fin lobe | 35 | 32-38 (35) |
|---|
| Length of lower caudal fin lobe | 34 | 29-36 (33) |
|---|
| Counts |
|---|
| Pectoral filaments | 4 | 4 |
|---|
| First dorsal fin rays | VIII | VIII |
|---|
| Second dorsal fin rays | I, 14 | I, 13-15 |
|---|
| Anal fin rays | III, 15 | III, 14-16 |
|---|
| Pectoral fin rays | 18 | 17-19 |
|---|
| Pelvic fins rays | I, 5 | I, 5 |
|---|
| Pored lateral-line scales | 95 | 82-95 |
|---|
| Scale rows above lateral line | 13 | 11-14 |
|---|
| Scale rows below lateral line | 16 | 15-17 |
|---|