Morphology Data of Thryssocypris smaragdinus
Identification keys
Main Ref. Roberts, T.R. and M. Kottelat, 1984
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

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

Most readily distinguished from its only congener, T. tonlesapensis, by much larger head, larger eye, larger pharyngeal bone and fewer anal fin rays, scales and vertebrae. Anal fin origin on a vertical with dorsal fin origin (versus anal fin origin far in advance of dorsal fin origin in T. tonlesapensis). Snout tip projects strongly beyond upper jaw, thus differing strikingly from T. tonlesapensis, in which it projects but very slightly. However, in one paratype of T. smaragdinus, the snout tip projects little more than in T. tonlesapensis.

Ease of Identification

Meristic characteristics of Thryssocypris smaragdinus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 36 - 39
Scale rows above lateral line 5 - 5
Scale rows below lateral line 3 - 3
Scales around caudal peduncle 14 - 15
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 7 - 7
total 38 - 39


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total 9 - 10
Adipose fin

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number
Spines total
Soft-rays total 12 - 14

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   11 - 12
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Soft-rays   7 - 8
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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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