Main Ref. | Martins, F.O., H.A. Britski and F. Langeani, 2014 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Males have conspicuous urogenital papilla immediately posterior to anus; expanded flap of skin on dorsal surface of the first pelvic-fin ray; tip of adpressed pelvic fin generally reaching anal-fin origin; and nasal chamber wider than in females (10.9-13.7% HL in males; 7.6-10.7% HL in females). |
Striking features | |
Body shape lateral | elongated |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | bony plates or armour |
Diagnosis |
Pseudotothyris ignota is distinguished from all congeners by possessing the anterior margin of snout with an odontode-free band (vs. anterior margin of snout completely covered by odontodes). It can be further differentiated from Pseudotothyris obtusa by having 32-47 teeth on the upper pharyngeal toothplate (vs. 20-30); 15-31 teeth on ceratobranchial 5 (vs. 12-15); first anal-fin pterygiophore contacting the 13th vertebra (vs. 12th); and metapterygoid-hyomandibula suture complete, the bones contacting each other dorsally to the suture (vs. metapterygoid-hyomandibula suture reduced, the bones not contacting each other dorsally to the suture. It can be further distinguished from Pseudotothyris janeirensis by the presence of three transverse dark saddles on the dorsum (vs. absence); absence of spinelet (vs. presence); generally presence of subocular cheek plate (vs. always absence); and odontodes on lateral plates randomly distributed (vs. odontodes aligned in well-defined series) (Ref. 116384). |
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 | 28 - 29 |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 8 - 9 |
Adipose fin | absent |
Attributes | forked |
Fins number | |
Spines total | |
Soft-rays total | 6 - 6 |
Pectoral | Attributes |
Spines | |
Soft-rays 6 - 7 | |
Pelvics | Attributes |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays 6 - 6 |