NOTES ON SOME BRITISH NUDIBRANCHS. 353 



indistinct, and it is quite probable that it was meant to represent the 

 dorsal margin as starting from the rhinophores. When this study was 

 copied for the plate as published, the artists themselves probably mis- 

 interpreted their earlier and rather indistinct drawing. But I do not 

 think that we should insist that tlie continuity of the dorsal margin 

 and oral veil is really a character of L. marmoratus, A. & H. 



LOMANOTUS FLAVIDUS, A. Sz H. 



A single small specimen examined alive at Plymouth resembled 

 Alder and Hancock's figure of this species. It is only 4 mm. long and 

 1 mm. broad. The general colour is pale buff, due to a multitude of 

 little specks. There are also white spots (particularly on the tops of 

 the cerata) and a few purplish-brown spots. At the sides of the head 

 in front of the rhinophores are two purplish-brown patches. The 

 rhinophore sheaths bear five processes, of which the one behind and 

 pointing outside is longer tliau the others. There are only about 

 twelve papilhe on each side. They are much as in Alder and Hancock's 

 plate — short, thick, and showing no signs of a bulb. Those in the 

 middle are the largest. They mostly have an irregular brown ring or 

 marking. 



The animal is not like L. marmoratus superficially, but no difference 

 could be found in the buccal parts. The foot, veil, and other external 

 characters not mentioned above are also similar. 



HANCOCKIA, GOSSP:. 

 = GOVIA, Trinchesk. 



Bergii {System der Nudih. Gast., p. 1048) adopts Govia (Trinchese, 

 1886) as the name of this genus in preference to Hancoclcia (Gosse, 

 1877), apparently on the ground that Gosse's description is inadequate. 

 But though Gosse does not deal with the anatomy of the animal, his 

 description is amply sufficient for its identification. There can be no 

 reasonable doubt that his Hancockia dadylota is the animal described 

 below, and that it is generically and perhaps specifically the same as 

 the later Govia of Trinchese. The name is therefore entitled to stand. 



The genus appears to be rare, and is recorded from the south of 

 England, Brest, and the Mediterranean. Four described species are 

 probably referable to it : Hancockia dactylota, Gosse ; Govia rubra, 

 Trinchese ; Govia viridis, Trinchese ;* and Doto nncinata, Hesse. In the 

 Jour, dc Conchyl., 1872, p. 34, Hesse described under this name a Nudi- 

 branch captured at Brest, but Garstang seems to have proved that it is 

 a Hancockia. Whether there is really more than one species is a 



* References to the literature arc given on following i)age. 



