CiONA PULCHELLA. 15 



nalis, from which it differs in size and colour [being- 

 much smaller and never tinged with green] ; but more 

 especially in the [greater] length of the tubular orifices, 

 which project considerably beyond the body when 

 extended. Not having had an opportunity of seeing 

 it in a living state, we are indebted to Mr. Peach for 

 the drawing from which the accompanying figures are 

 taken, and to Mr. Hincks for some of the details. 



3. Ciona fascicularis Hancock. 

 (Plate II, figs. 1-8 ; and fig. 29 in text.) 



[? Tetlnjum fasciculatnm BOHADSCH Anim. Marin. (1761), 



p. 132, pi. x, if. 4-6.] 

 [? Ascidia intestinalis LINN^US Syst. Nat. ed. 12, I (1767), 



pt. 2, p. 1087 (pars) ; Bosc Hist. Nat, Vers, I (1802), 



p. 107 ; BARBUT Gen. Verm. (1783), p. 50, pi. v, f. 3.] 

 Ciona fascicnlaris HANCOCK in Ann. Nat. Hist. [(4) VI 



(1870), p. 364]. 



Bod// much elongated, sub-cylindrical, flaccid, highly 

 contractile, colourless, or tinged yellowish from the 

 mantle and viscera appearing through it ; attached by 

 the side of the base ; the lower extremity with 

 numerous, rather long cylindrical papillge. Apertures 

 tubular, short, yellowish, with red ocelli; the branchial 

 terminal, the atrial at a short distance down the 

 ventral margin. Test soft, smooth, gelatinous, perfectly 

 hyaline. Mantle delicate, pale yellow, and extremely 

 transparent, all the visceral organs being distinctly 

 seen through it ; tubes short, cylindrical, and more 

 highly coloured than the rest of the mantle. Branchial 

 sac long, narrow, cylindrical, with rather long papillae, 

 non-plicate. Oral filaments long, slender, numerous. 

 Tentacular filaments numerous, long and slender, with 

 short intermediate ones, set in a single row on a 

 narrow scalloped fold or collar. 



Length from two to three inches ; breadth [nearly] 

 half an inch. 



