Morphology Data of Rhinogobius nandujiangensis
Identification keys
Abnormalities
Main Ref. Chen, I.-S., P.-J. Miller, H.L. Wu and L.-S. Fang, 2002
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance always different morphology between mature adults
Different colors
Remarks

Descriptive characteristics of juvenile and adult

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

Second dorsal fin rays I/8; anal fin rays modally I/8; pectoral fin modally 18; scales in lateral series 27-29; predorsal scales 8-11; vertebrae (including urostyle) modally 25. First dorsal fin rays without filamentous extensions, fourth ray longest in male. Anal fin origin inserted below origin of first branched ray of second dorsal fin. Distance between posterior oculoscapular canal pores è and ô slightly longer than gap between anterior and posterior oculoscapular canals. Body always lacking cross bands and each body-scale pocket with brownish-orange mark on distal half. Cheek and opercle creamy yellow, always with dark-brown streak. Branchiostegal membrane with 6-7 dark-red lines. Basal part of pectoral fin with dark-brown spot.

Ease of Identification

Meristic characteristics of Rhinogobius nandujiangensis

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 27 - 29
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 25 - 26

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 8 - 9
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 8 - 9

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   17 - 18
Pelvics Attributes  part of sucker-disc
Position    abdominal
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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