Synodus intermedius (Spix & Agassiz, 1829)
Sand diver
Synodus intermedius
photo by Patzner, R.

Family:  Synodontidae (Lizardfishes), subfamily: Synodontinae
Max. size:  46 cm TL (male/unsexed); max.weight: 1,000.0 g
Environment:  reef-associated; depth range 3 - 320 m
Distribution:  Western Atlantic: Bermuda, North Carolina (USA) and northern Gulf of Mexico to Santa Catarina, Brazil (Ref. 57756). Most common lizard fish in the West Indies (Ref. 13442).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 11-12; Anal spines: 0-0; Anal soft rays: 11-11; Vertebrae: 49-52. This species is distinguished by the following characters: D rays 11-12; A rays 11; total caudal rays 40-42; dorsal segmented caudal rays 9; ventral segmented caudal rays 9-10; dorsal procurrent caudal rays 11-12; ventral procurrent caudal rays 9-10; pelvic-fin rays 8; pectoral-fin rays 11-13; total vertebrae 49-52 (modally 50); pored lateral-line scales 49-52 (modally 51); median predorsal scales 16-17; scale rows on cheek 6-8; HL 15.2-28.4% SL (26.6%); orbit diameter 3.6-6.4% SL (4.7%) and 13.4-22.5% HL (17.2%); interorbital width 2.8-5.3% SL (4.3%) and 10.1-19.4% HL (15.9%); flap on anterior nostril is small and broad, its length 1.5-3.6% HL (2.4%); snout triangular in dorsal view; pelvic-fin length 23.1-26.7% SL (24.9%); when preserved, 3-6 dark bars on caudal fin spanning upper and lower lobes; with a small, rectangular-shaped, black scapular blotch (length 5.1-12.2% HL, mean 8.4%); there are 9-13 dark bars on trunk; colour in life, adults tan to olive and with unevenly distributed yellow stripes along body (Ref. 93218).
Biology:  Found on the sandy bottom around boulders or in sandy corridors in patch reefs (Ref. 5521). Uncommon near the shore.
IUCN Red List Status: Least Concern (LC); Date assessed: 29 January 2013 Ref. (120744)
Threat to humans:  harmless
Country info:   
 

Entered by: Froese, Rainer - 01.05.91
Modified by: Garilao, Cristina V. - 02.08.17
Checked by: Garilao, Cristina V. - 07.10.96

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