16 BRITISH TUNIOATA. 



admitted into this work (including Appendic'idaria,sp. 

 hid.) was thus raised from 60 to 73.] 



In his ' Natural History of Ireland ' [iv (1856)] Mr. 

 Thompson enumerates 42 species, of which two are 

 new. [Amoroucium albiran* is one of these ; the other 

 appears to be that named Ascidia mamillaris, Delle 

 Chiaje, which is not Miiller's A. mamillaris, previously 

 recorded, and probably not Delle Chiaje's species. 



In this year (1856) Philip Henry Grosse brought out 

 his ' Manual of Marine Zoology for the British Isles/ 

 in which he enumerates 66 Tunicates. These are the 

 60 in Forbes and Haiiley's first volume, Aplidium verru- 

 cosum, AmoBToeciurn alln'can*, Syntethys hebridicus, Cla- 

 velliua producta, C. pumilio ?, and Appendicularia 

 llaijcUum ?, the two species of Clavellina appearing to 

 be first records. Gosse omits Alder's fourteen records 

 of 1848 and 1 850, and the four records of Cams (1851).] 



The Rev. A. M. Norman published [in J 857] a list of 

 the " Mollusca of the Firth of Clyde " [' Zoologist,' xv] 

 in which are enumerated sixteen species of Tunicates 

 as denizens of that district, but not one of them was 

 new to the British fauna. 



[In 1860 Mr. John Stanger recorded in the ' Trans- 

 actions of the Tyneside Naturalists' Field Club ' (iv), 

 from Craster, Northumberland, Cynthia vestita, a new 

 species named and then only briefly described by Mr. 

 Alder. In the same year Mrs. Merrifield, in her 

 1 Natural History of Brighton,' recorded eight species, 

 seven of which appear to be new to Brighton, but not 

 one new to Britain. 



The "List of the British Marine Invertebrate Fauna," 

 drawn up for the Dredging Committee of the British 

 Association by Mr. Robert McAiiclrew ('Rep. Brit. 

 Assoc.' for 1860), enumerates 73 species of Tunicata, in- 

 cluding Appendic ul 'aria, sp. hid., but this list was solely 

 compiled from Forbes and Hanley's ' British Mollusca,' 

 and therefore omits all the species added to our fauna, 

 except Sifnfctln/s Jiebridicus, from 1848 to the date of its 

 publication in 1861.] 



