Teleostei (teleosts) >
Aulopiformes (Grinners) >
Synodontidae (Lizardfishes) > Harpadontinae
Etymology: Saurida: Derived from Greek, sauros = lizard (Ref. 45335); tweddlei: 'tweddlei', i.e., named in honor of Denis Tweddle (Ref. 101339).
Eponymy: Denis (d: 1949) and Sharon Tweddle are husband and wife and together were honoured in the name of the dwarf sanjika for their contributions (e. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal; depth range 57 - 127 m (Ref. 101339). Tropical
Western Indian Ocean: Seychelles and Saya de Malha Bank, Mascarene Plateau.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.1 cm SL male/unsexed; (Ref. 101339)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 12 - 13; Anal soft rays: 10 - 12; Vertebrae: 49 - 50. This species can be distinguished by the following set of characters: D 12-13; P 14-15; lateral-line scales 53-55; rows of transverse scales 4 1/2 above lateral line, 5 1/2 below lateral line; pectoral fins moderately long (reaching at or just above the line form origin of pelvic fins to origin of dorsal fin); 2 rows of teeth on outer palatines; 0-3 teeth on vomer; tongue with ca. 4-5 rows of teeth posteriorly; caudal peduncle compressed (depth greater than width); stomach and intestine pale whitish (Ref. 101339).
Cross section: oval.
Found at depths of 57 to 127 meters. The largest specimen was 40.10 cm in standard length (Ref. 101339).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Russell, B.C., 2015. A new species of Saurida (Pisces: Synodontidae) from the Mascarene Plateau, Western Indian Ocean. Zootaxa 3947(3):440-446. (Ref. 101339)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00501 (0.00238 - 0.01055), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
4.4 ±0.4 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |