To the Pariçishtas of the Samaveda belong the two indices called Arsha and Daivata, enumerating respectively the Rishis and deities of the text of the Naigeya branch of the Samaveda. They quote Yaska, Çaunaka, and Açvalayana among others. There are also two Anukramanis attached to the Black Yajurveda. That of the Atreya school consists of two parts, the first of which is in prose, and the second in çlokas. It contains little more than an enumeration of names referring to the contents of its Samhita. The Anukramani of the Charayaniya school of the Kathaka is an index of the authors of the various sections and verses. Its statements regarding passages derived from the Rigveda differ much from those of the Sarvanukramani of the Rigveda, giving a number of totally new names. It claims to be the work of Atri, who communicated it to Laugakshi. The Anukramani of the White Yajurveda in the Madhyamdina recension, attributed to Katyayana, consists of five sections. The first four are an index of authors, deities, and metres. The authors of verses taken from the Rigveda generally agree with those in the Sarvanukramani. There are, however, a good many exceptions, several new names belonging to a later period, some even to that of the Çatapatha Brahmana. The fifth section gives a summary account of the metres occurring in the text. It is identical with the corresponding portion of the introduction to the Sarvanukramani, which was probably the original position of the section. There are many other Pariçishtas of the White Yajurveda, all attributed to Katyayana. Only three of these need be mentioned here. The Nigama-pariçishta, a glossary of synonymous words occurring in the White Yajurveda, has a lexicographical interest. The Pravaradhyaya, or "Chapter on Ancestors," is a list of Brahman families drawn up for the purpose of determining the forbidden degrees of relationship in marriage, and of indicating the priests suitable for the performance of sacrifice. The Charana-vyuha, or "Exposition of the Schools" of the various Vedas, is a very late work of little importance, giving a far less complete enumeration of the Vedic schools than certain sections of the Vishnu- and the Vayu-Purana. There is also a Charana-vyuha among the Pariçishtas of the Atharva-veda, which number upwards of seventy. This work makes the statement that the Atharva contains 2000 hymns and 12,380 verses.