| Main Ref. | Watson, J.W., 2003 |
| Appearance refers to |
| specialized organs | |
| different appearance | |
| different colors | |
| remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| निदान | Hydrorhiza: tubular, rather contorted, reptant on substrate. Stems: simple; proximal part and stolon at same diameter; basal part with 2 to 4 broad indefinite annulations and sympodial thereafter. Internodes: long, smooth, tubular, becoming shorter along stem, widening distally to below hydrotheca. Nodes: usually with 1 or 2 deep, oblique constrictions, nearly parallel with adcauline hydrothecal wall. Perisarc above node with a slight tumescene, sometimes with 1 or 2 additional constrictions along internode. |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| सम्पूर्ण | |
| जानवरों की रीड़ का जोड़ | |
| preanal | |
| सम्पूर्ण |
| Attributes | |
| Fins number | |
| Finlets No. | पृष्ठीय |
| Ventral | |
| Spines total | |
| Soft-rays total | |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes |
| spines | |
| soft-rays | |
| Pelvics | Attributes |
| Position | |
| spines | |
| soft-rays |