Main Ref. | Conway, K.W. and R. Britz, 2015 |
Utseende refererar till | |
Bones in OsteoBase |
specialiserade organ | |
annat utseende | |
andra färger | |
Anmärkningar |
Särskilt slående egenskaper | |
Lateral kroppsform | elongated |
Tvärsnitt | |
Dorsal profil av huvudet | |
Ögontyp | |
Typ av mun/snyte | |
Munnens placering | sub-terminal/inferior |
Type of scales | cycloid scales |
Diagnos |
Psilorhynchus olliei belongs to the P. balitora species group and is distinguished from all other members by the following combination of characters: 5-6 round to squarish lateral blotches; 6-7 dorsal saddles, all but largest separated from lateral blotches; small dark brown blotches scattered irregularly across scales in L1, L+1 and L+2 scale rows in posterior half of body; obvious row of small dark brown blotches in L-1 row, bordering ventral margin of lateral blotches in posterior half of body; caudal fin with elongate black marking extending along ventral margin of lower lobe; dorsal fin with black stripe across center that is widest anteriorly; 31-32 lateral-line scales; 10 + 9 principal caudal-fin rays; v.9-10.i-ii pectoral-fin rays; 32-33 (16-17+16-17) total vertebrae; anteriormost branchiostegal ray present; parietal portion of temporal sensory canal with 3 openings; preopercular portion of preopercular-mandibular canal with 4 openings; ventral surface between paired fins without scales (Ref. 103424). Description: Dorsal-fin rays iii.9; anal-fin rays ii.5.i or ii.6; pectoral-fin rays v.9.ii or v.10.i; pelvic-fin rays ii.7 or ii.6.i (Ref. 103424). |
Ease of Identification |
Sidolinjer | avbruten: No |
Fjäll längs sidolinje | 31 - 32 |
Porbärande fjäll längs sidolinje | |
Fjäll i lateralserie | |
Antal rader fjäll ovan sidolinje | |
Antal rader fjäll under sidolinje | |
Fjäll runt stjärtfensspole | 10 - 11 |
Skäggtömmar | |
Gälspringor (endast hos hajar/rockor) | |
Gälräfständer | |
på undre del av gälbåge | |
på övre del av gälbåge | |
totalt | |
Ryggkotor | |
preanal | |
totalt | 32 - 33 |
Egenskaper | no striking attributes |
Antal fenor | 1 |
Antal småfenor | Dorsal |
Ventral | |
Totalt antal hårda fenstrålar | |
Totalt antal mjuka fenstrålar | 13 - 13 |
Fettfena | absent |
Egenskaper | forked |
Antal fenor | |
Totalt antal hårda fenstrålar | |
Totalt antal mjuka fenstrålar | 8 - 8 |
Bröstfena | Egenskaper more or less normal |
Fenstrålar hårda | |
Fenstrålar mjuka 16 - 16 | |
Bukfenor | Egenskaper more or less normal |
Position abdominal behind origin of D1 | |
Fenstrålar hårda | |
Fenstrålar mjuka 9 - 9 |