Main Ref. | Pereira, E.H.L., F. Vieira and R.E. Reis, 2007 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Nuptial males have a slightly thickened pectoral-fin spine with somewhat enlarged odontodes and hypertrophied odontodes on the lateral margins of head. Odontodes also are present in females and juveniles, but are much smaller. In addition, nuptial males of most species are distinguished from females by having a dermal flap on the dorsal surface of the pelvic-fin spine, which is absent or very reduced in females. In contrast to most other Pareiorhaphis species, fully developed males have a well-developed fleshy flap along the entire length of the posterodorsal margin of the pectoral-fin spine (Ref. 75793). |
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 |
Diagnosed from all other species of the genus Pareiorhaphis by having a longer snout (71.1-75.6 vs. 52.8-69.9% HL). Can be differentiated further from most other congeners, except for Pareiorhaphis garbei, Pareiorhaphis vestigipinnis, Pareiorhaphis cerosus, and Pareiorhaphis splendens, by having smaller orbital diameter (8.6-11.3 vs. 11.7-18.8% HL). Differs further from Pareiorhaphis garbei by having bifid teeth, with a small lateral cusp in both dentary and premaxilla (vs. simple teeth, without lateral cusp in both dentary and premaxilla); from Pareiorhaphis vestigipinnis by having an adipose fin (vs. adipose fin absent); from Pareiorhaphis cerosus by having one to three preadipose azygous plates (vs. three to five plates); and from Pareiorhaphis splendens by the longer pelvic-fin spine (19.4-23.4 vs. 12.6-19.1% SL) (Ref. 75793). Description: Dorsal fin with spine followed by seven branched rays; anal fin with one unbranched and five branched rays; pectoral fin with spine and six branched rays; pelvic fin with one spine and five branched rays (Ref. 75793). |
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 | 1 - 1 |
Soft-rays total | 7 - 7 |
Adipose fin | present |
Attributes | forked |
Fins number | |
Spines total | |
Soft-rays total | 6 - 6 |
Pectoral | Attributes |
Spines 1 | |
Soft-rays 6 - 6 | |
Pelvics | Attributes |
Position abdominal beneath origin of D1 | |
Spines 1 | |
Soft-rays 5 - 5 |