Simpsonichthys constanciae,

Costa, Wilson J. E. M., 2004, Simpsonichthys suzarti sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual fish from the Rio Pardo floodplains, northeastern Brazil, Zootaxa 468, pp. 1-7: 5-6

publication ID

http://doi.org/ 10.5281/zenodo.157844

publication LSID

lsid:zoobank.org:pub:342DF13A-5F45-4CBE-A11F-A9EE9E2D7B5A

persistent identifier

http://treatment.plazi.org/id/03FD87C9-212E-FF9C-FEF7-2D72FAEFFC80

treatment provided by

Plazi

scientific name

Simpsonichthys constanciae
status

 

Key to species of the S. constanciae  group

1 No black spots on male flank; dorsal and anal fins of male with short filamentous rays, tip never reaching vertical through posterior margin of caudal fin; male with contact organs on flank scales and inner surface of upper pectoral­fin rays ............................ 2

­ Four longitudinal rows of round black spots on male flank; dorsal and anal fins of male with long filamentous rays, tip posteriorly surpassing posterior margin of caudal

fin; contact organs of flank and pectoral fin absent ................................ S. constanciae  2 Anal fin pointed in male; bars restricted to anterior portion of male flank; no bars on male anal fin................................................................................................................. 3

­ Anal fin rounded in male; reddish brown bars alternated with bright greenish blue bars on whole male flank; oblique brown bars on male anal fin ............................ S. suzarti 

3 No bright dots on caudal and anal fins of male............................................................. 4

­ White dots on dorsal fin and concentrated on dorsal half of male caudal fin................. ................................................................................................................. S. bokermanni 

4 Three horizontal stripes on posterior half of male flank; 4 + 14 gill­rakers on first branchial arch; 16­18 dorsal­fin rays in female; male unpaired fins yellow.......................... ........................................................................................................... S. perpendicularis 

­ Usually no stripes, sometimes faint median stripe on posterior half of male flank; 3–4 + 11 gill­rakers on first branchial arch; 13–15 dorsal­fin rays in female; male unpaired fins red.......................................................................................................... S. rosaceus