Pygmy swordtail

High-Backed Pygmy Swordtail Status in nature:- Common but restricted Status in hobby:- Established Range:- Rio Coy, Rio Panuco system Morphs:- large and small males, very rare yellow dorsal in small males. More

sword ornament in the pygmy swordtail Xiphophorus nigrensis (Pisces: Poeciliidae) ANIMAL BEHAVIOUR, 2002, 63, 37–45 GIL G. ROSENTHAL, WILLIAM E. WAGNER, JR & MICHAEL J. RYAN Female mating preferences can be secondarily lost for a number of reasons. More

Pygmy swordtail, Xiphophorus multilineatus, Rio Coy, San Luis Potosi, Mexico. Many notable discoveries in ecological and behavioural genetics have resulted from studies of the pygmy swordtails. More

pygmy swordtail and Akysis maculipinnis. More

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