Morphology Data of Sinocyclocheilus xichouensis
Identification keys
Abnormalities
Main Ref. Pan, X.-F., L. Li, J.-X. Yang and X.-Y. Chen, 2013
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is similar to Sinocyclocheilus macrophthalmus, S. guishanensis, S. angustiporus, S. lateristritus, S. qiubeiensis, S. grahami, S. qujingensis, S. maculatus and S. purpureus distributed in the Nanpanjiang River, and S. qiubeiensis distributed in the Red River. It differs from S. macrophthalmus by having fewer than 9 gill rakers; from S. guishanensis by its interorbital width/SL of 8.1~9.9%, rostral barbels extended to posterior margin of eye and maxillary barbels extended to posterior

preopercular; from S. lateristritus by dorsal-fin origin opposite of pelvic fin origin, with no a black stripe along the lateral line; from S. grahami by having 74~88 lateral-line scales, 20 scale rows above the lateral line, and 16 scale rows below the lateral line; from S. qujingensis by a curved lateral line, 74-88 lateral-line scales, 48 circumpeduncular scales; from S. yimenensis by the ratio of predorsal length, dorsal-fin base length, preanal length, anal fin length, prepectoral length, caudal-peduncle length and lower jaw length to SL, 47.1%-53.7%, 12.8%-15.8%, 66.0%-71.0%, 13.7%-17.1%, 26.0%-29.5%, 19.3%-24.7%, 4.7%-7.0%, respectively; from S. maculatus and S. purpureus by possession of lateral line and scaled body; and from S. angustiporus and S. qiubeiensis by having 35~39 predorsal scales, 6 gill rakers, and interorbital width/SL of 8.1%?9.9% (Ref. 93974).

Ease of Identification

Meristic characteristics of Sinocyclocheilus xichouensis

Lateral Lines Interrupted: No
Scales on lateral line 74 - 88
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 20 - 20
Scale rows below lateral line 16 - 16
Scales around caudal peduncle 48 - 48
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 6 - 6
Vertebrae
preanal
total 37 - 39

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 3 - 3
Soft-rays total 6 - 7
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   15 - 17
Pelvics Attributes  
Position    abdominal  beneath origin of D1
Spines     
Soft-rays   9 - 10
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