| Main Ref. | Ferraris, C.J., P. Skelton and R.P. Vari, 2010 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Male anus and genital pore is located midway between base of pelvic fins and anterior edge of pelvic-fin origin; with females, openings are slightly closer to pelvic-fin base. |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Diagnosis |
This species is distinguished from all its congeners except D. chappuisi and D. reidi by having the dorsolateral and ventrolateral vertebral processes extending through the dermis to form longitudinal bony ridges from slightly anterior to the base of the adipose fin posteriorly to the caudal-fin base and from somewhat anterior of the anal-fin origin to the caudal-fin base. The exposed processes are in shape of longitudinal bars with slightly corrugated surfaces that together form irregular longitudinal ridges. Doumea stilicauda differs from D. chappuisi in predorsal length 27-30% SL (vs. 32-37%); head length 15-17% SL (vs. 19-23%); caudal-peduncle length 35-41% SL (vs. 22-29%); caudal-peduncle depth 19.6-25.8 times in caudal-peduncle length (vs. 7.3-14.5 times). D. stilicauda differs from D. reidi in predorsal length 27-30% SL (vs. 33%); head length 15-17% SL (vs. 18%); caudal-peduncle length 35-41% SL (vs. 22-29%); caudal-peduncle depth 19.6-25.8 times in caudal-peduncle length (vs. 11.8 times) (Ref. 85844). |
| 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 | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| 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 |