Malformations of Ariopsis guatemalensis and Ariopsis seemanni collected off San Blas (Mexican Pacific). A) specimen of A. guatemalensis lacking right eye (CPMIP 13); B) normal left eye of a specimen of A. guatemalensis (CPMIP 10); C) specimen of A. guatemalensis with small undeveloped eye (CPMIP 21); D) normal right eye of a specimen of A. guatemalensis (CPMIP 21); E) malformed upper tooth plate and cleft lip of a specimen of A. guatemalensis (CPMIP 21); F) specimen of A. guatemalensis with normal lip and tooth plate (CPMIP 10). Malformations of Ariopsis guatemalensis and Ariopsis seemanni collected off San Blas (Mexican Pacific). G) malformed barbels of a specimen of A. guatemalensis (CPMIP 21); H) normal barbels specimen of a specimen of A. guatemalensis (CPMIP 10); I) specimen of A. seemanni with small right eye (CPMIP 15); J) normal left eye of a specimen of A. seemanni (CPMIP 8); K) specimen of A. seemanni with malformed lower tooth plate (CPMIP 18); L) normal lower tooth plate of A. seemanni (CPMIP 8).