Main Ref. | Smith, D.G., 1997 |
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 | sucker-like |
Munnens placering | sub-terminal/inferior |
Type of scales | |
Diagnos |
Tail slender and tapering to a point. Mouth inferior, small and sucker-like; upper lip with thick, pleated folds; posterior end of maxilla bent sharply downward, forming a flap-like structure; fleshy papillae on snout bordering upper lip. Teeth absent. Dorsal fin short-based, located above anus, the first 4-6 rays hard and spinous, increasing in length from front to back, the remainder soft and segmented, membrane connecting all rays except for first I-III spines. Anal fin long, extending from just behind anus to tip of tail, anterior rays spinous, posterior rays segmented, the transition gradual. Caudal fin absent (Ref. 11041). Light brown, lining of gill chamber and rim of opercular branchiostegal flap dark brown, mouth and lining of buccal cavity light yellowish tan (Ref. 37108). |
Ease of Identification | easy to distinguish from other species. |
Sidolinjer | 1 avbruten: No |
Fjäll längs sidolinje | |
Porbärande fjäll längs sidolinje | 121 - 135 |
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 | 228 - 234 |
Egenskaper | no striking attributes |
Antal fenor | 1 |
Antal småfenor | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Totalt antal hårda fenstrålar | 6 - 8 |
Totalt antal mjuka fenstrålar | 4 - 5 |
Fettfena | absent |
Egenskaper | pointed |
Antal fenor | 1 |
Totalt antal hårda fenstrålar | 44 - 58 |
Totalt antal mjuka fenstrålar | 67 - 88 |
Bröstfena | Egenskaper more or less normal |
Fenstrålar hårda 0 | |
Fenstrålar mjuka 12 - 14 | |
Bukfenor | Egenskaper more or less normal |
Position abdominal before origin of D1 | |
Fenstrålar hårda 3 | |
Fenstrålar mjuka 6 - 8 |