| Picture Used | Opapi_u0.jpg |
| Size (cm) | |
| Sex | unsexed |
| Locality | |
| Total length (TL) | 1,114 pixels |
| Standard length | 99.7 % TL |
| Fork length | 100.0 % TL |
| Pre-anal length | 64.2 % TL |
| Pre-dorsal length | 11.9 % TL |
| Pre-pelvic length | 0.0 % TL |
| Pre-pectoral length | 10.5 % TL |
| Body depth | 3.4 % TL |
| Head length (HL) | 10.1 % TL |
| Eye diameter | 8.8 % HL |
| Pre-orbital length | 19.5 % HL |
| Aspect ratio of caudal fin | |
| Remarks | Anal and dorsal fins confluent to caudal fin; pectoral and pelvic fins absent; PAL approximated. |
