Main Ref. | López-Fernández, H., D.C. Taphorn and E.A. Liverpool, 2012 |
Utseende refererar till | |
Bones in OsteoBase |
specialiserade organ | |
annat utseende | |
andra färger | |
Anmärkningar |
Särskilt slående egenskaper | |
Lateral kroppsform | |
Tvärsnitt | |
Dorsal profil av huvudet | clearly convex |
Ögontyp | |
Typ av mun/snyte | |
Munnens placering | sub-terminal/inferior |
Type of scales | ctenoid scales |
Diagnos |
Distinguished from all congeners, among other characters, by approximately equal uncinate process and anterior arm and reduced anteroventral expansion of epibranchial 1 (vs. uncinate process narrower and complete anteroventral expansion in the other two species), a dorso-ventrally flattened maxillary process of the palatine (vs. cylindrical in the other two species), cycloid (vs. ctenoid) scales in the opercular, postorbital, lateral chest and anal-genital regions, the absence of a mid-lateral spot, and a diffuse dark area covering the dorsal portion of the head giving the impression of a 'black cap'. Possessess a unique juvenile pattern of seven vertical dark bars partially preserved in adults. Bars 3-6 in antero-caudal direction are most visible in juveniles and medium-sized specimens but become fainter and almost disappear in adults. Many specimens show only bar number 3 (midlateral bar) (Ref. 91746). |
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 | 26 - 26 |
Egenskaper | no striking attributes |
Antal fenor | 1 |
Antal småfenor | Dorsal |
Ventral | |
Totalt antal hårda fenstrålar | 15 - 17 |
Totalt antal mjuka fenstrålar | 8 - 8 |
Fettfena | absent |
Egenskaper | more or less truncate |
Antal fenor | |
Totalt antal hårda fenstrålar | 3 - 3 |
Totalt antal mjuka fenstrålar | 7 - 8 |
Bröstfena | Egenskaper more or less normal |
Fenstrålar hårda | |
Fenstrålar mjuka | |
Bukfenor | Egenskaper more or less normal |
Position behind origin of D1 | |
Fenstrålar hårda | |
Fenstrålar mjuka |