Arrivals:  April 25, Florentia, barque 453 tons, T. H. Banks, from Plymouth, Nov. 22. Passengers - Dr. Clegg, Surgeon-Superintendent, and 245 immigrants. The Florentia has had a tedious passage of a one hundred and fifty-three days from Plymouth, and had to call at Hobart Town for provisions, where some of the seamen absconded. The only vessels spoken during the passage was the Free Trader, for New York, and the American ship Great Britain. The Florentia brings 249 immigrants, who are reported healthy by the Health Officer. There are 43 married couples, comprising 36 agricultural labourers, 4 gardeners, 1 mason, 1 herdsman, 1 shepherd, 2 smiths, a tailor, 2 carpenters, and 1 plaisterer: 9 single men, viz., 8 agricultural labourers and 1 schoolmaster; and 64 single women, viz., 62 domestic servants and 2 sempstrerses. There were 12 births and 17 deaths during the voyage, the latter being 5 adults and 12 children. The Florentia is ballasted with coal.