Two-finned round herring
📖 Overview
Presumed marine or estuarine , but its reported presence in Port Tudor, an area where estuarine conditions prevail, would indicate that the species may be confined to estuaries and it is found in fresh and brackish water in Madagascar . Maximum total length 6.0 cm .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 14 - 17; Anal spines: 0; Anal soft rays: 16 - 18; Vertebrae: 45 - 46. Diagnosis: Body elongate, a little compressed; belly rounded, without pre-pelvic and post-pelvic scutes, but a pelvic scute present with slender vertical arms; gillrakers 26-31; pelvic fin with 1 unbranched and 7-8 branched finrays, well before dorsal fin origin; last two anal finrays separate, forming a distinct little finlet . This species is distinguished from other clupeids by the presence of 2 anal fins, of which the second anal fin comprises 2 finrays . : fusiform / normal; Cross section: oval.
🌀 Behaviour
Behavioural data for Two-finned round herring is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; brackish; pelagic. Tropical; 0° - 26°S, 37°E - 50°E
🌿 Ecology
📐 Morphometrics
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Sauvagella bianalis | Bertin | 1940 | Synonym |
| Sauvagella madagascariensis bianalis | Bertin | 1940 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
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