They should also abstain from eating fishes that have scales, and four-legged aquatic animals like frogs and others, except the tortoise.
अभक्ष्या ब्राह्मणैर्मत्स्याः शल्कैर्ये वै विवर्जिताः। चतुष्यात् कच्छपादन्यो मण्डूका जलजाश्च ये॥