| Main Ref. | Calegari, B.B., P. Lehmann A. and R.E. Reis, 2013 |
| Utseende refererar till | |
| Bones in OsteoBase |
| specialiserade organ | |
| annat utseende | |
| andra färger | |
| Anmärkningar | Males with urogenital papilla immediately posterior to anal opening, a fleshy flap along the dorsal margin of the pelvic-fin spine, larger pelvic-fin spine (16.9-19.6% SL vs. 14.1-16.2% SL in females), wider nares diameter (13.1-15.0% vs. 9.2-11.5% HL in females); shorter prenasal length (17.6-20.1% vs. 22.0-24.4% in HL females) (Ref. 93039). |
| Särskilt slående egenskaper | |
| Lateral kroppsform | elongated |
| Tvärsnitt | |
| Dorsal profil av huvudet | |
| Ögontyp | |
| Typ av mun/snyte | |
| Munnens placering | |
| Type of scales | |
| Diagnos |
Can be diagnosed from its congeners by having shorter pectoral-fin spine length (18.6-21.3 vs. 21.4-30.4% SL in remaining species). Additional characters useful for its identification include lower caudal peduncle (7.6-9.0 vs. 9.3-11.0 in Otothyropsis marapoama and 9.7-11.5% SL in Otothyropsis piribebuy), deeper caudal peduncle (7.6-9.0 vs. 6.2-7.6% SL in Otothyropsis polyodon); and dorsal-fin spinelet triangular in shape (vs. spinelet rectangular or quadrangular) (Ref. 93039). Description: pectoral-fin spine with odontodes. |
| Ease of Identification |
| Sidolinjer | avbruten: No |
| Fjäll längs sidolinje | |
| Porbärande fjäll längs sidolinje | |
| Fjäll i lateralserie | |
| Antal rader fjäll ovan sidolinje | |
| Antal rader fjäll under sidolinje | |
| Fjäll runt stjärtfensspole | |
| Skäggtömmar | |
| Gälspringor (endast hos hajar/rockor) | |
| Gälräfständer | |
| på undre del av gälbåge | |
| på övre del av gälbåge | |
| totalt | |
| Ryggkotor | |
| preanal | |
| totalt | 28 - 28 |
| Egenskaper | |
| Antal fenor | 1 |
| Antal småfenor | Dorsal |
| Ventral | |
| Totalt antal hårda fenstrålar | 2 - 2 |
| Totalt antal mjuka fenstrålar | 6 - 7 |
| Fettfena | absent |
| Egenskaper | forked |
| Antal fenor | |
| Totalt antal hårda fenstrålar | 1 - 1 |
| Totalt antal mjuka fenstrålar | 5 - 5 |
| Bröstfena | Egenskaper other (see remarks) |
| Fenstrålar hårda 1 | |
| Fenstrålar mjuka 6 - 7 | |
| Bukfenor | Egenskaper |
| Position abdominal before origin of D1 | |
| Fenstrålar hårda | |
| Fenstrålar mjuka 6 - 6 |