47 



Report on the Tunicata of Plymouth. 



By 



Walter Garstang, 91. A., 



Jesus College, Oxford ; 

 Berkeley Fellow of The Owens College, Manchester. 



With Plate II. 



Part I.— CLAVELINID^, PEROPHORID^, DIAZONID^. 



The southern shores of the English Channel have long been 

 famous for the wealth of their Tunicate fauna, having furnished 

 material in abundance for the classical researches of Milne-Edwards, 

 Giard, and Lacaze-Duthiers. The Channel Islands also have been 

 repeatedly visited by English zoologists, and have amply supplied 

 those among them who have been in search of Tunicate treasures. 

 Probably the peculiar tidal conditions of this part of the Channel are 

 especially favourable to a rich development of littoral forms ; but, as 

 the work of Montagu, Couch, Clark, Alder, Gosse, Cocks, Bate, and 

 Norman sufficiently testifies, the Devon and Cornish coasts of England 

 can lay claim to an almost equally luxuriant shore fauna, the rocky bays 

 and long sheltered estuaries being especially wealthy in this respect. 

 During my residence at Plymouth I found that the Tunicata were 

 among the best represented groups of the fauna, and, as I devoted 

 considerable attention to the search for rare or new, as well as for 

 well-known forms, I trust that a classified report upon the local 

 representatives of the group will not be without its usefulness to 

 other investigators. 



The absence of any work at all approaching the character of a 

 monograph of the British Tunicata is a serious want which has 

 long been felt by marine zoologists generally. Such a work has 

 several times been commenced by some of our most eminent 



