Thalassophryne nattereri Steindachner, 1876
photo by Carvalho Filho, A.

Family:  Batrachoididae (Toadfishes), subfamily: Thalassophryninae
Max. size:  21.3 cm TL (male/unsexed); max.weight: 230.8 g
Environment:  demersal; brackish; marine; depth range - 60 m
Distribution:  Western Atlantic: Tobago to São Paulo, Brazil (Ref. 57756).
Diagnosis:  Dorsal spines (total): 2-2; Dorsal soft rays (total): 20-29; Anal spines: 0-0; Anal soft rays: 19-19. All fin membranes brownish proximally, blackish from medial to distally, white extremely; body dark brown; diffuse black saddle-shaped blotches on body, 1 on orbital region and dorsal spine area, 3 on soft dorsal; no black spot except for base of dorsal and opercular spines (Ref. 13608).
Biology:  Numerous in the estuarine areas of the Brazilian coast; stays motionless in the sandy or muddy bottoms; the venom is injected in the flesh of the victim when pressure is applied on the gland (Ref. 55461).
IUCN Red List Status: Least Concern (LC); Date assessed: 21 August 2012 Ref. (130435)
Threat to humans:  venomous


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