Morphology Data of Lonchopisthus ancistrus
Identification keys
Abnormalities
Main Ref. Smith-Vaniz, W.F. and S.J. Walsh, 2017
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 set of characters: posterior end of maxilla is strongly hooked; membranes connecting maxilla and premaxilla and covering inner posterior part of dentary pale; D X-XI,12-13; A III,11-12; branched caudal-fin rays 11-13 (exceptionally 5); cheek and opercle are naked; oblique body-scale rows in longitudinal series 33-39; has a very long pelvic fins, 39.4-75.3% SL; with L. lemur, differs from congeners in lacking an inner premaxillary dark stripe and having fewer numbers of segmented dorsal and anal-fin rays and associated unbranched rays (Ref. 116588).

Ease of Identification

Meristic characteristics of Lonchopisthus ancistrus

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 2 - 6
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 10 - 10
total 26 - 27

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 10 - 11
Soft-rays total 12 - 13
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 11 - 12

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   19 - 21
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17