My dear Vidura, all the followers of Lord Śiva surrounded the arena of sacrifice. They were of short stature and were equipped with various kinds of weapons; their bodies appeared to be like those of sharks, blackish and yellowish. They ran all around the sacrificial arena and thus began to create disturbances.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तावत्स रुद्रानुचरैर्मखो महान् नानायुधैर्वामनकैरुदायुधैः । पिङ्गैः पिशङ्गैर्मकरोदराननैः पर्याद्रवद्भिर्विदुरान्वरुध्यत
tāvatsa rudrānucarairmakho mahān nānāyudhairvāmanakairudāyudhaiḥ | piṅgaiḥ piśaṅgairmakarodarānanaiḥ paryādravadbhirvidurānvarudhyata
SB 4.5.13