| Family: |
Dorosomatidae (Gizzard shads and sardinellas) |
| Max. size: |
14 cm SL (male/unsexed) |
| Environment: |
pelagic; freshwater |
| Distribution: |
North America: Pacific drainage of northwestern Mexico (Río Piaxtla, Río del Fuerte, Río Sinaloa system, Río de Mocorito, Río Muerto, Río Yaqui system, i.e. between Sinaloa and Sonora). |
| Diagnosis: |
Dorsal spines (total): 0-0; Anal spines: 0-0; Anal soft rays: 22-29. Body moderately deep; belly with 15 to 18 + 9 to 12 scutes. Mouth small. Last dorsal fin ray long, but less the distance from snout tip to pelvic fin base; anal fin relatively short. Scales somewhat small, somewhat irregular. A dark spot behind gill opening. Distinguished from Opisthonema species by its anal fin which is longer than head and well behind dorsal fin base. |
| Biology: |
Occurs in rivers and perhaps in lakes. A filter-feeder, its feeding and breeding habits presumably similar to other Dorosoma species. More data needed. |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 06 July 2018 Ref. (130435)
|
| Threat to humans: |
harmless |
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