inventory books on diverse invertebrate groups, and (3) type index cards (for details, see Mikhailov, 2018). Unfortunately, only a small part of this documentation has been digitized to date (see Mikhailov, 2016b, for further details). For spiders, index Ta is used in the inventory books of the Zoological Museum of the Moscow State University. Altogether, the types of 50 species representing nine families (Amaurobiidae, Araneidae, Dictynidae, Gnaphosidae, Hahniidae, Linyphiidae, Lycosidae, Philodromidae, Salticidae) are listed below, including 43 holotypes and 275 paratypes; 126 accession numbers have been allocated. The Museum card index of the spider type collection is arranged alphabetically, by genus name as originally described: