Italo-Dalmatian languages

The Italo-Dalmatian languages, or Central Romance languages, are a group of Romance languages spoken in Italy, Corsica (France), and formerly in Dalmatia (Croatia).

Italo-Dalmatian can be split into: The generally accepted four branches of the Romance languages are Western Romance, Italo-Dalmatian, Sardinian and Eastern Romance. But there are other ways that the languages of Italo-Dalmatian can be classified in these branches:
 * Italo-Romance, which includes most central and southern Italian languages.
 * Dalmatian Romance, which includes Dalmatian and Istriot.
 * Italo-Dalmatian is sometimes included in Eastern Romance (which includes Romanian), leading to: Western, Sardinian, and Eastern branches.
 * Italo-Dalmatian is sometimes included in Western Romance (which includes the Gallic and Iberian languages) as Italo-Western, leading to: Italo-Western, Sardinian, and Eastern branches.
 * Italo-Romance is sometimes included in Italo-Western, with Dalmatian Romance included in Eastern Romance, leading to: Italo-Western, Sardinian, and Eastern branches.
 * Corsican (from Italo-Dalmatian) and Sardinian are sometimes included together as Southern Romance, or Island Romance, leading to: Western, Italo-Dalmatian, Southern, and Eastern branches.

Languages
Based on the criterion of mutual intelligibility, Dalby lists four languages: Italian (Tuscan), Corsican, Neapolitan–Sicilian–Central Italian, and Dalmatian.

Dalmatian Romance

 * The Dalmatian language was spoken in the Dalmatia region of Croatia. It became extinct in the 19th century.
 * The Istriot language is a language spoken in the southwestern part of Istrian peninsula in Croatia.

Venetian
The Venetian language is sometimes added to Italo-Dalmatian when excluded from Gallo-Italic, and then usually grouped with Istriot. However, Venetian is not grouped into the Italo-Dalmatian languages by Ethnologue and Glottolog, unlike Istriot.

Italian
Italian is an official language in Italy, Switzerland, San Marino, Vatican City and western Istria (in Slovenia and Croatia). It used to have official status in Albania, Malta and Monaco, where it is still widely spoken, as well as in former Italian East Africa and Italian North Africa regions where it plays a significant role in various sectors. Italian is also spoken by large expatriate communities in the Americas and Australia. The Italian language was initially and primarily based on Florentine: it has been then deeply influenced by almost all regional languages of Italy while its received pronunciation (known as Pronuncia Fiorentina Emendata, Amended Florentine Pronunciation) is based on the accent of the Roman dialect; these are the reasons why Italian differs significantly from Tuscan and its Florentine variety.

Tuscan and Corsican

 * Tuscan–Corsican: group of dialects spoken in the Italian region of Tuscany, and the French island of Corsica.
 * Northern Tuscan dialects:
 * Florentine is spoken in the city of Florence, and was the basis for Standard Italian.
 * Other dialects: Pistoiese; Pesciatino or Valdinievolese; Lucchese; Versiliese; Viareggino; Pisano-Livornese.
 * Southern Tuscan dialects:
 * Dialects of Aretino-Chianaiolo, Senese, Grossetano.
 * Corsican, spoken on Corsica, is thought to be descended from Tuscan.
 * Gallurese and Sassarese, spoken on the northern tip of Sardinia, can be considered either dialects of Corsican or Corso-Sardinian transitional varieties.

Central Italian
Central Italian, or Latin–Umbrian–Marchegian and in Italian linguistics as "middle Italian dialects", is mainly spoken in the regions of: Lazio (which includes Rome); Umbria; central Marche; a small part of Abruzzo and Tuscany.
 * Romanesco, spoken in the Rome, Lazio. As mentioned above, it is the basis of the accent of the received pronunciation in standard Italian.
 * Tuscia or Viterbo: spoken in the Province of Viterbo, Lazio.
 * Central-Northern Lazian: spoken in the southern areas of the Metropolitan City of Rome Capital and the northern areas of the Provinces of Frosinone and Latina Lazio.
 * Umbrian: spoken in Umbria.
 * Central Marchigiano: spoken in central Marche.
 * Sabino: spoken in the city of L'Aquila (Abruzzo) and the Province of Rieti (Lazio).

Southern Italo-Romance
The "intermediate southern dialect group", is spoken in: southern Marche; southernmost Lazio; Abruzzo; Molise; Campania (including Naples); Basilicata; and the north of both Apulia and Calabria.
 * The Campano dialects of Neapolitan, Irpino, Southern Laziale: spoken in Naples and Campania; and southern Lazio.
 * Abruzzese–Southern Marchigiano: spoken in the Abruzzo region and southern Marche region.
 * Molisan: spoken in the Molise region.
 * Basilicatine (Lucanian): spoken in the region of Basilicata, also known as Lucania.
 * Pugliese or Apulian: spoken in the centre and north of Apulia.
 * Cosentino, also known as or Northern Calabrian: spoken in the Province of Cosenza, in northern Calabria.
 * Vastese, spoken in the town of Vasto.

Extreme Southern Italian
The Extreme Southern Italian, known in Italian linguistics as the "extreme southern dialect group", is spoken on the island of Sicily; and in the south of both Calabria and Apulia.
 * Sicilian, spoken on the island of Sicily: Western Sicilian; Central Metafonetica; Southeast Metafonetica; Ennese; Eastern Nonmetafonetica; Messinese.
 * Sicilian dialects on other islands: Isole Eolie, on the Aeolian Islands; Pantesco, on the island of Pantelleria.
 * Calabro, or Central-Southern Calabrian: dialects are spoken in the central and southern areas of the region of Calabria.
 * Salentino, spoken in the Salento region of southern Apulia.
 * Southern Cilentan: spoken in Roccagloriosa and Rofrano in southern tip of Cilento, which is southern Province of Salerno, in the Campania region.
 * Cilentan: spoken in Cilento, influenced by both Neapolitan language and Sicilian language.