Main Ref. | Teugels, G.G., 1986 |
Utseende refererar till | |
Bones in OsteoBase |
specialiserade organ | no special organs |
annat utseende | males alike females |
andra färger | males alike females |
Anmärkningar |
Särskilt slående egenskaper | none |
Lateral kroppsform | elongated |
Tvärsnitt | circular |
Dorsal profil av huvudet | more or less straight |
Ögontyp | more or less normal |
Typ av mun/snyte | more or less normal |
Munnens placering | sub-terminal/inferior |
Type of scales | scales embedded or partly/completely absent |
Diagnos |
Diagnosis: head length 19.6-24.6% SL (Ref. 81644). Head pointed in dorsal outline; snout short; tooth plates small; eyes dorsally located; "dermosphenotic" and supraorbital bones joined in specimens over 80 mm SL (Ref. 248). Frontal fontanella long and narrow ("knife-shaped")(Ref. 248, 57129, 81644). Occipital process long and oval-shaped (Ref. 248). Distance between occipital process and dorsal-fin base 4.3-10.5% SL (m = 8.1) (Ref. 81644). Gill rakers long, slender and distantly set (Ref. 248), 11-19 on 1st gill arch (Ref. 81644). Suprabranchial organ well developed (Ref. 248). Pectoral spine serrated on both sides (Ref. 57129), strongly on posterior face, weakly on anterior face (Ref. 81644). 65-67 vertebrae (Ref. 57129). Coloration: no information on colour in life (Ref. 57129). Preserved specimens uniformly dark brown on back and sides, and yellowish-brown on belly (Ref. 57129, 81644). Vertical series of small white spots on flanks (Ref. 57129). |
Ease of Identification |
Sidolinjer | 1 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 | 8 |
Gälspringor (endast hos hajar/rockor) | absent |
Gälräfständer | |
på undre del av gälbåge | |
på övre del av gälbåge | |
totalt | 11 - 19 |
Ryggkotor | |
preanal | |
totalt | 65 - 67 |
Egenskaper | extending over most of the back length |
Antal fenor | 1 |
Antal småfenor | Dorsal 0 |
Ventral 0 | |
Totalt antal hårda fenstrålar | 0 |
Totalt antal mjuka fenstrålar | 81 - 95 |
Fettfena | absent |
Egenskaper | more or less truncate; more or less normal |
Antal fenor | 1 |
Totalt antal hårda fenstrålar | 0 |
Totalt antal mjuka fenstrålar | 63 - 76 |
Bröstfena | Egenskaper more or less normal |
Fenstrålar hårda 1 | |
Fenstrålar mjuka 8 - 9 | |
Bukfenor | Egenskaper more or less normal |
Position abdominal behind origin of D1 | |
Fenstrålar hårda 0 | |
Fenstrålar mjuka 6 |