Complex sentence: The polka-dot batfish looks similar to the short-nose batfish ("Ogcocephalus nasutus"), although the pectoral fins of the polka-dot batfish are speckled with small spots whereas those of the short-nose are plain.
Split into simpler sentences: The polka-dot batfish look similar to the short-nose batfish ("Ogcocephalus nasutus"). The pectoral fins of the polka-dot batfish are speckled with small spots while those of the short-nose are plain.