TABLE 4 in Schizodon unimaculatus, a new species from the lower Rio São Francisco with a reappraisal of the Schizodon species presenting a caudal-peduncle blotch (Teleostei: Anostomidae)

TABLE 4. Principal component analysis of Schizodon knerii (n=9) and S. unimaculatus (n=8). Variable loadings of ten characters for principal component axis 1 and 2. Asterisks represent main characters distinguishing the two species.
PC 1PC 2Eigenvalue0.00460.0021% of variance45.9020.88Standard length-0.0790-0.0357Head length0.04520.1448Trunk length-0.1117-0.0863Body depth0.4434*0.2676*Predorsal length-0.14410.0113Snout length0.05100.2275Interorbital width0.2040*0.2357*Orbital diameter-0.01500.4354*Caudal peduncle depth0.09910.1937Ninth anal fin ray length0.6766*-0.3752*Interopercular width-0.1315-0.0072Head depth-0.2082*-0.0086Premaxillary length-0.4328*-0.1627Mandibular width0.0439-0.6300*