The Kuḷḷattōṇi (குள்ளத்தோணி) is also referred to as Yāttirai tōṇi (யாத்திரை தோணி) in Tamil, acc. to the maritime ethnographer James Hornell, in his seventh volume of the *Memoirs of the Asiatic Society of Bengal (1918–1923).*

These Kuḷḷattōṇi (also known as *Yatra Oruwa in Sinhala*) were not exclusive to one group; they were a shared maritime tradition used by both Tamil and Sinhalese sailors (at least in the time of recording this vessel's shape). Supplementing Hornell’s findings, Admiral Paris, in his book named VOILIERS ET PIROGUES DU MONDE AU DÉBUT DU XIXE SIÈCLE \*\*(\*\*1843), provided detailed drawings of these vessels, and confirmed that they were common along the Coromandel Coast of India and the shores of Ceylon.

*---> The* ***Kulla*** *(****குள்ளா****) is the smaller version of the Kuḷḷattōṇi, and its image is provided in the comment section.*

To read further about the Kulla Thoni:

* [Beyond the Myth of Cholanthiyam: Linking the Kolandiophonta of the Periplus to the Tamil 'Kulla Thoni](https://yarl.com/forum3/topic/308190-beyond-the-myth-of-cholanthiyam-linking-the-kolandiophonta-of-the-periplus-to-the-tamil-kulla-thoni/) by Nane Chozhan.

Two Mast Boats: Kulla Thoni of the Tamils from the Coromandel coast | 19th Century