Found in very clear water with muddy or boggy bottoms . Migratory behaviour is undetermined . Species used in research .
Dorsal soft rays (total): 13 - 14; Anal soft rays: 11 - 13. Diagnosis: A small species with dorsal and anal fins set far back on body, but less posterior than in Allotoca dugesi. Predorsal length 64-68%. Dorsal origin slightly ahead of anal origin. Dorsal rays usually 13 or 14. Anal rays usually 11-13. Lateral scales 28-32. Mandibular pores absent. Adult fins dimorphic, longer in males which have dorsal and anal fins rounded and elevated. Deep body and compressed. The coloration is distinctive, fins mostly clear, one or more irregular dark spots on caudal peduncle, females with 3-6 lateral blotches of iridescent blue, males with a lateral series of fine dark spots. Diploid chromosome number 48, no metacentrics .
Behavioural data for Blackspot allotoca is currently being reviewed.
Freshwater; demersal; pH range: 7.0 - 7.7; dH range: 5 - 20. Tropical; 22°C - 26°C ; 23°N - 22°N North America: Jalisco, Mexico.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
No observations yet - be the first to log one!
View all observations for Blackspot allotoca ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.