The later theory as seen in Viçvanātha [742] adds descriptions of eighteen minor forms of drama, Uparūpakas, which represent refinements on the original scheme. Needless to say, though omitted in the Nāṭyaçāstra, quotations are found ascribing to Bharata the doctrine, though he mentions in them but fifteen with several variations of name; [743] the Agni Purāṇa [744] mentions eighteen with some variants of name, while a verse cited by Dhanika [745] names seven forms of mimetic dramas, which it classes in conjunction with the Bhāṇa. The age of these divisions is, therefore, uncertain; the Daçarūpa condescends to mention only the Nāṭikā, but obviously knows of the existence of others, confining its scope to the main forms, as its title indicates. The Nāṭyaçāstra [746] mentions, in a passage suspected of interpolation, but without special cause, a type of dramas Nāṭī, which later is styled Nāṭikā, or lesser heroic comedy. The subject-matter in this view may be either legendary or invented; the later opinion requires it to be invented as in the Prakaraṇa, which is the model for the Nāṭikā in this regard. The hero is to be that of the Nāṭaka, a gay king, and the intrigue consists of his efforts to attain marriage with the heroine, who is an ingénue of royal family, whom he is destined to marry, but who by some accident or design has been introduced into the harem in an inferior capacity. The lovers have to strive against the jealousy of the queen, a lady of mature character and devotion to the king, who at last is induced to sanction the nuptials. The life of the court gives opportunity for introducing music, song, and the dance as elements in the entertainment. The graceful manner is appropriate, and the erotic sentiment is prescribed; by an excess of zeal, when the drama as usual has four acts, they are in theory to contain each one of the four members of the graceful style. A lesser number of acts is allowed by Dhanaṁjaya. There is certainly not much difference between such a Nāṭaka as the Mālavikāgnimitra and the normal Nāṭikā, save the length, as expressed in the number of the acts, but it would be unwise to assert that the distinction is based on this alone. It is a fact that both in the Priyadarçikā and the Ratnāvalī the poet has freely enough invented his episodes, and this is a fact justifying the discrimination. The little bourgeois comedy, the Prakaraṇikā, [747] is precisely of the same character as the Nāṭikā, save that its hero and heroine are of the merchant class. It is clear that it is due merely to a false desire for symmetry, as it is merely a Prakaraṇa when judged by the three determinants of plot, character, and sentiment, and Dhanika rightly rejects it as a species, though Viçvanātha admits it.