Abstract
Morphological development of barracudas (Sphyraena guachancho andS. tome) is described, based on larval and juvenile specimens collected in the southeast Brazilian Bight. Preflexion larvae of the two species are similar, butS. tome larvae can be distinguished from those ofS. guachancho by having small melanophores on the midbrain and a row of melanophores along the ventral midline of the lower jaw and isthmus. Flexion and postflexion larvae ofS. tome are more slender than those ofS. guachancho. Morphology and pigment patterns ofS. tome are similar to those ofS. borealis from the north Atlantic. whereasS. guachancho larvae are similar toS. barracuda in having a fusiform body, advanced position of the pelvic fins and a heavily pigmented tail region, but differ in having a fleshy tip on the lower jaw in postflexion and juvenile stages.
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Matsuura, Y., Suzuki, K. Larval development of two species of barracuda,Sphyraena guachancho andS. tome (Teleostei: Sphyraenidae), from southeastern Brazil. Ichthyological Research 44, 369–378 (1997). https://doi.org/10.1007/BF02671988
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DOI: https://doi.org/10.1007/BF02671988