Main Ref. | Ghedotti, M.J., A.D. Meisner and P.H.F. Lucinda, 2001 |
Appearance refers to | Male; Female |
Bones in OsteoBase |
Specialized organs | protruding genital papilla (m) |
Different appearance | always different morphology between mature adults |
Different colors | |
Remarks | Males with intromittent organ with protuberance supported by anal fin ray. Females with median urogenital opening, lacking enlarged flap on left or right side. |
Striking features | none |
Body shape lateral | fusiform / normal |
Cross section | compressed |
Dorsal head profile | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | terminal |
Type of scales | |
Diagnosis |
Possess a tubular gonopodium with shortened second, fourth and fifth anal fin rays, an enlarged seventh middle anal fin radial in males and females, and an elongate dorsoposterior process of the lacrimal. Branchiostegal rays: 5. Distinguished from other Plesiojenynsia by the following combination of characters: a single midlateral stripe without associated dorsolateral or ventrolateral stripes or blotches in adults; a terminal to slightly oblique mouth; fewer than 13 gillrakers; and absence of the first mandibular-canal pore. |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | |
Scales in lateral series | 29 - 33 |
Scale rows above lateral line | |
Scale rows below lateral line | |
Scales around caudal peduncle | 16 - 16 |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 10 - 13 |
Vertebrae | |
preanal | |
total | 33 - 33 |
Attributes | |
Fins number | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 0 - 0 |
Soft-rays total | 10 - 11 |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 9 - 9 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 15 - 18 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines 0 | |
Soft-rays 6 - 6 |