Morphology Data of Serrapinnus lucindai
Identification keys
Abnormalities
Main Ref. Malabarba, L.R. and F.C. Jerep, 2014
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Mature males have caudal peduncle ventrally arched and hooks on the pelvic and anal-fin rays. The hook bearing anal-fin rays are hypertrophied, expanded in the sagittal plane, and commonly have the ray segments fused. The ventral procurrent caudal-fin rays of mature males are hypertrophied and extend ventrally beyond caudal peduncle muscle and skin (Ref. 96959).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth terminal
Type of scales cycloid scales
Diagnosis

Serrapinnus lucindai can be primarily diagnosed from its congeners by having 17 to 19 ventral procurrent caudal-fin rays (vs. less than 17). Furthermore, it differs from other species of the genus by having the following characters: anal-fin hooks on the first unbranched and five branched rays of mature males (vs. anal-fin hooks on at least the anterior six branched rays on the remaining species of the genus); 9 to 11 cusps on the premaxillary teeth (vs. 5 in S. microdon and S. potiguar, 7 in S. aster, 7 to 9 in S. calliurus, S. heterodon, S. kriegi, S. micropterus, S. notomelas and S. piaba, and 10 to 12 in S. gracilis and S. littoris); continuous mid-lateral black stripe extending from the opercular region to the caudal-peduncle spot absent (vs. present in S. sterbai); dentary teeth without expanded cusps forming a sharp cutting edge and the incomplete lateral line (vs. dentary teeth with expanded cusps forming a sharp cutting edge and complete lateral line in S. heterodon); hyaline dorsal fin (vs. fin with a proximal black blotch in S. notomelas); and black spot absent in the posteroventral region of the abdomen (vs. present in S. kriegi) (Ref. 96959).

Description: dorsal-fin rays ii,9; anal-fin rays iii-iv,17-21; pectoral-fin rays i,9-10; pelvic-fin rays i,6-7; scale rows between lateral line and pelvic-fin origin 4 or 5 (Ref. 96959).

Ease of Identification

Meristic characteristics of Serrapinnus lucindai

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 8 - 10
Scales in lateral series 31 - 34
Scale rows above lateral line 5 - 6
Scale rows below lateral line
Scales around caudal peduncle 12 - 14
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 15 - 16
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 11 - 11
Adipose fin present

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   10 - 11
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   7 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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