Common name: Cardinalfish

Ostorhinchus is a genus of cardinalfishes found in tropical and subtropical waters of the Indian and Pacific Oceans. These small, nocturnal fish are known for their peaceful nature and striking coloration, making them popular in the reef aquarium trade. Many species in this genus exhibit mouthbrooding behavior, where males carry the eggs in their mouths until they hatch. This fascinating reproductive strategy is a point of interest for many aquarists. They typically prefer sheltered lagoons or coral reefs and can be found hovering in schools or pairs.

1. 
   Common name: Striped cardinalfish

   Scientific name: Ostorhinchus angustatus
2. 
   Common name: Short-tooth cardinal

   Scientific name: Ostorhinchus apogonoides
3. 
   Common name: Ringtailed cardinalfish

   Scientific name: Ostorhinchus aureus
4. 
   Common name: Yellow cardinal-fish

   Scientific name: Ostorhinchus cavitensis
5. 
   Common name: Yellowlined cardinalfish

   Scientific name: Ostorhinchus chrysotaenia
6. 
   Common name: Ochre-striped cardinalfish

   Scientific name: Ostorhinchus compressus
7. 
   Common name: Chubby cardinalfish

   Scientific name: Ostorhinchus cookii
8. 
   Common name: Yellowstriped cardinalfish

   Scientific name: Ostorhinchus cyanosoma
9. 
   Common name: Redspot cardinalfish

   Scientific name: Ostorhinchus dispar
10. Common name: Doederlein's cardinalfish

    Scientific name: Ostorhinchus doederleini
11. 
    Common name: Many-striped cardinalfish

    Scientific name: Ostorhinchus endekataenia
12. Common name: Brassy cardinalfish

    Scientific name: Ostorhinchus flavus
13. Common name: Fukui's Cardinalfish

    Scientific name: Ostorhinchus fukuii
14. Common name: Griffin's Cardinalfish

    Scientific name: Ostorhinchus griffini
15. 
    Common name: Hartzfeld's cardinalfish

    Scientific name: Ostorhinchus hartzfeldii
16. 
    Common name: Frostfin cardinalfish

    Scientific name: Ostorhinchus hoevenii
17. Common name: Copperstriped cardinalfish

    Scientific name: Ostorhinchus holotaenia
18. Common name: Ishigaki Cardinalfish

    Scientific name: Ostorhinchus ishigakiensis
19. Common name: rifle cardinalfish

    Scientific name: Ostorhinchus kiensis
20. 
    Common name: Spotted Cardinalfish

    Scientific name: Ostorhinchus maculiferus
21. Common name: Pearly cardinalfish

    Scientific name: Ostorhinchus margaritophorus
22. Common name: Blacktail Cardinalfish

    Scientific name: Ostorhinchus melanoproctus
23. 
    Common name: Moluccan cardinalfish

    Scientific name: Ostorhinchus moluccensis
24. 
    Common name: Yelloweye Cardinalfish

    Scientific name: Ostorhinchus monospilus
25. Common name: Many-lined cardinalfish

    Scientific name: Ostorhinchus multilineatus
26. 
    Common name: Dwarf Cardinalfish

    Scientific name: Ostorhinchus nanus
27. Common name: Neotenous cardinalfish

    Scientific name: Ostorhinchus neotes
28. 
    Common name: Blackstripe cardinalfish

    Scientific name: Ostorhinchus nigrofasciatus
29. Common name: Nine-banded soldierfish

    Scientific name: Ostorhinchus novemfasciatus
30. 
    Common name: Orange-Lined Cardinalfish

    Scientific name: Ostorhinchus oxina
31. 
    Common name: Small-Scaled Cardinalfish

    Scientific name: Ostorhinchus parvulus
32. 
    Common name: Southern orange-lined cardinal fish

    Scientific name: Ostorhinchus properuptus
33. 
    Common name: Threadfin Cardinalfish

    Scientific name: Ostorhinchus pselion
34. 
    Common name: Redspot cardinalfish

    Scientific name: Ostorhinchus rubrimacula
35. 
    Common name: Seale's cardinalfish

    Scientific name: Ostorhinchus sealei
36. Common name: Meteor cardinalfish

    Scientific name: Ostorhinchus selas
37. 
    Common name: Blacktip cardinalfish

    Scientific name: Ostorhinchus semilineatus
38. 
    Common name: Kupang cardinalfish

    Scientific name: Ostorhinchus wassinki