Seguro toothcarp (Phalloceros mikrommatos), first described by Lucinda, 2008 is a tiny fish in the family Poeciliidae (order Cyprinodontiformes). Adults typically reach 2.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Poeciliidae kept in the hobby.
Dorsal soft rays (total): 8 - 9; Anal soft rays: 9 - 11; Vertebrae: 31 - 32. Diagnosed from other species of the genus Phalloceros by the first gonapophysis angled 5-15 degrees relative to vertebral column and second gonapophysis angled zero-15 degrees relative to vertebral column. Differs further from its congeners, except Phalloceros leticiae and Phalloceros ocellatus, by the roundish to round and well-defined ocellated lateral spot. Distinguished from Phalloceros leticiae and Phalloceros ocellatus by the number of anal-fin rays in females (11 vs. 10, respectively) .
Behavioural data for Seguro toothcarp is currently being reviewed.
Freshwater; benthopelagic. Tropical South America: Rio João de Tiba drainage in Bahia, Brazil.
The following diseases are known to affect Seguro toothcarp.
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