Morphology Data of Brosmolus longicaudus
Identification keys
Abnormalities
Main Ref. Schwarzhans, W. and P.R. Møller, 2007
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

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 by the following characters: anterior nostril low on snout; copulatory organ of males with a simple and flap-like, small pair of (outer) pseudoclaspers; large species (> 59 mm SL, as indicated from a pre-adult male), very slender (body depth at origin of anal fin 10.9-11.7 % SL); ventral fin base to anal fin origin 23.3-24.3 % SL); 14-15 precaudal vertebrae, 56-59 total vertebrae; D 124-129; A 90-94; 23-24 pectoral fin rays; 7 branchiostegal rays; V in D 2.4-2.5; scale patch on cheek only on head; scales on operculum absent; upper preopercular pore absent; separate opening for the first and second lower preopercular pore; elongated otolith, its length to height 2.1, sulcus straight and short, its otolith length to sulcus length 2.1, fused colliculi; maxilla slightly expanded posterio-ventrally; anterior anal fin pterygiophore is variable in length (Ref. 76869).

Ease of Identification

Meristic characteristics of Brosmolus longicaudus

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 15 - 16
Vertebrae
preanal 14 - 15
total 56 - 59

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 124 - 129
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 90 - 94

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   23 - 24
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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