13D SOME ASCIDIANS FROM THE ISLE OF WIGHT. 



in his recently published* Revised Classification of the Tunicata, 

 so that a new name is, at least provisionally, desirable. I therefore 

 propose for it the name Ascidia Herdmani. 



The subjoined synonymic lists show briefly the conclusions to 

 which I have been led by the study of this species from the Isle of 

 Wight. 



1. Ascidia depressa, Alder, 1848, loc. cit. 



= Ascidia depeessa, Oarstang, 1891 (the present paper). 

 ?? = Phallusia pusilla, Traustedt, 1883, loc. cit. 

 non Ascidia depeessa, Seller, 1875, loc. cit. {= A. Eotdei, Garstang, 1891). 

 nee — — Herdman, 1881, loc, cit. (= A. E'erdmani,Ga,vst!ing,lS91). 



nee — — Eoule, 1884, loc. cit, ( = .4. Roulei, Garstang, 1891). 



2. Ascidia rudis, Alder^ 1863. Ann. Mag. Nat. Hist. (3), ii, p. 195. 



? = Ascidia Rouiei, Garstang, 1891. 



= A. DEPEESSA, Soule, 1884 (non Alder, 1863, nee Herdman, 



1881). 

 = [var. peteicola] A. depeessa. Seller, 1875. 

 non — EUDis, Seller, 1875. 



? = A. Maeioni, Soule, 1884. 



III. 



Ascidia mentula, 0. F. Muller. 



Ascidia mentula, Muller. Zoologia Danica, 1788, vol. i, pp. 6, 7, pi. viii, 

 figs. 1 — 4. 



— EUBEOTINCTA, SancocJc. Ann. Mag. Nat. Hist., 1870. 



— EUBictJNDA, SancocTc. Ibid., 1870. 



— EOBtJSTA, SancocJc. Ibid., 1870. 



Phallusia mentula, Kupffer. Jabresb. d. Komm. z. Unters. d. deutsch. Meere 



in Kiel, Berlin, 1874, p. 209, pi. iv, fig. 1. 

 Ascidia mentula. Seller. Untersuchungeu, 1875, loc. cit., pp. 2 — 13, pis. i — iv. 



— EUBESCENS, Seller. Ibid. 



— LATA, Serdman. Journ. Linn. Soc, xv, 1881. 



Phallusia mentula, Traustedt. Die einfacben Ascidien, 1883, loc. cit., 



pp. 457—459. 

 Ascidia mentula. Route. Rechercbes, 1884, loc. cit. 



Several large Ascidians, which I refer to this species, were 

 found attached to the sides of a rock, situated far out in the 

 Zostera bed off Nodes Point, on May 7th, at extreme low water, 

 * Journ. Liun. Soc. Zool., vol. xxiii, 1891, p. 594. 



