Morphology Data of Odontostilbe splendida
Identification keys
Abnormalities
Main Ref. Bührnheim, C.M. and L.R. Malabarba, 2007
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Males with hooks on anal and pelvic-fin rays and slightly elongated dorsal- and pelvic-fin rays (vs. absence in females); matures males with a gill gland on the first gill arch, including about 7-9 anterior branchial filaments; males usually have longer snout length and caudal peduncle length (Ref. 75063).

Descriptive characteristics of juvenile and adult

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

Distinguished readily from all congeners including the sympatric Odontostilbe pulchra and Odontostilbe pao by its anterior position of the adipose fin, at vertical through last 2nd or 3rd anal-fin ray insertions. Can be further differentiated from Odontostilbe pulchra by a group of morphometric characters in males: snout pointed and longer 24.1-26.9% HL (vs. short and blunt in Odontostilbe pulchra, 18.0-26.0% HL); shorter pectoral-fin length 20.9-23.5% SL (vs. 21.3-26.4% SL); smaller anal-fin base 24.9-26.8% SL (vs. 26.0-31.4% SL); shorter caudal peduncle length 11.5- 13.0% SL (vs. 12.5-16.0% SL) ; longer snout-pelvic fin origin distance 45.1-48.7% SL (vs. 42.3-47.9% SL); and longer snout-anal fin origin distance 63.7-68.6% SL (vs. 58.6-64.0% SL). Furthermore, mature males have hooks on 1st to 6th-7th anal-fin rays (vs. hooks on 1st to 22nd anal-fin branched rays in Odontostilbe pulchra). Mature males usually have the 2nd unbranched dorsal-fin ray elongate, not present in Odontostilbe pulchra. Females and immature specimens, and not well-developed males can be differentiated from Odontostilbe pulchra by the following features: maxillary teeth 3-4, mostly 3 (vs. 2-3, mostly 2 in Odontostilbe pulchra; lateral line with 36 scales, one specimen 35 (vs. 33-37, mostly 34-35). Differs also from Odontostilbe fugitiva by its gill rakers counts on lower branch, averaging 11 (vs. usually 12) (Ref. 75063).

Description: Dorsal fin ii9; Anal fin iv or v, 19, 20, 21 or 22; Pectoral fin i9, 10, 110 or 12; Pelvic fin i6 or 7. Precaudal vertebrae, including Weberian apparatus 16 or 17 (Ref. 75063).

Ease of Identification

Meristic characteristics of Odontostilbe splendida

Lateral Lines Interrupted: No
Scales on lateral line 35 - 36
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 6 - 7
Scale rows below lateral line 4 - 5
Scales around caudal peduncle 14 - 14
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 10 - 12
on upper limb 5 - 7
total
Vertebrae
preanal 16 - 17
total

Fins

Dorsal fin(s)

Attributes
Fins number
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  
Spines     
Soft-rays   10 - 13
Pelvics Attributes  
Position    
Spines     
Soft-rays   7 - 8
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