Key Identification Features
- maculatus are drab, and lack the distinctive dark lateral line that is common to many Xiphophorus species.
- Adult female mosquitofish can also be identified by a distinct gravid spot located on the posterior of their abdomens.
- In areas where the ranges of the two subspecies overlap, individuals often show intermediate physical features.
- This black spot is a characteristic feature of the species, and it is present in both males and females.
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