| Family | Scientific Name | Author | Year | Common Name |
| Grammicolepidae | Grammicolepis brachiusculus | Poey | 1873 | Thorny Tinselfish |
Grammicolepis brachiusculus
Unique Characters: Total dorsal-fin rays 39-41. Young (less than 24 cm standard length) with 10 or 11 widely separated spiny scutes on sides of body and caudal peduncle which disappear with growth. 34-36 spinous protuberances along base of dorsal fin.
Similar Species: Spotted Tinselfish Xenolepidichthys dalgleishi. Total dorsal-fin rays 32-35. No spiny scutes on body at any stage. 29 spinous protuberances along base of dorsal fin.
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