Main Ref. | Aquino, A.E. and S.A. Schaefer, 2010 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Male urogenital papilla covered by flaplike anus; with patch of more tightly arranged small odontodes from fourth to sixth plates of ventral series, lateral to urogenital papilla. Female anus tubular, without separate urogenital papilla; the size and arrangement of odontodes on plates lateral to anus similar to those on adjacent plates, without distinct patch of differentially arranged odontodes (Ref. 84367). |
Striking features | |
Body shape lateral | elongated |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
This species is distinguished from its congeners having the bifid neural spines of vertebra 10-12 expanded distally (vs. bifid neural spines progressively pointed distally); it is further distinguished from all congeners, except H. brevirostratum, by having its preopercle constricted medially (vs. preopercle without constriction) and presence of canal in preopercle, it is semicircular, and located posterior to the preopercle constriction (Ref. 84367). |
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 | 27 - 27 |
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 |