| Family: |
Atherinopsidae (Neotropical silversides), subfamily: Menidiinae |
| Max. size: |
13 cm TL (male/unsexed); max. reported age: 2 years |
| Environment: |
pelagic; freshwater |
| Distribution: |
North America: Gulf of Mexico drainages from the Pearl River west to Brazos River including sthe Mississippi River drainage, and the Great Lakes (but not Lake Superior) - St. Lawrence River drainages. |
| Diagnosis: |
Dorsal spines (total): 4-7; Dorsal soft rays (total): 8-12; Anal spines: 1-1; Anal soft rays: 19-27. This species is distinguished and differs from Labidesthes vanhyningi by the following characters: Labidesthes sicculus have the anterolateral processes of the posttemporals longer than width of the base (vs. L. vanhyningi having the processes shorter than width of base); with a midlateral stripe tapering to insertion of pectoral fin in advance of first dorsal fin (vs. maintaining width or usually expanding, to insertion of pectoral fin in advance of the first dorsal-fin); a ratio of thoracic length to abdominal length greater than 2 (vs. less than 2) (Ref. 104856). |
| Biology: |
Occur near surface of lakes, ponds, and quiet pools of creeks and small to large rivers. Usually found in open water (Ref 5723, 10294). Feed on zooplankton, including copepods, cladocerans, and midge larvae (Ref. 10294). |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 21 February 2012 Ref. (130435)
|
| Threat to humans: |
harmless |
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