Fam. 3, Plate 35. 



EOLIS FARRANI, Alder and Hancock. 



E. alba; branchiis flavido-albis, inflatis, extremitatibus aurantio-annulatis, in seriebus 9-10, digestis : 

 tentaculis superne aurantiacis : lateribus pedis anterioribus rotundatis. 

 Eolis Farrani, Aid. and Hanc. in Ann. Nat. Hist. v. 13, p. 164. 

 Hab. One specimen brought up by the dredge in Malahide Bay, near Dublin. 



Body three-eighths of an inch long, slender, tapering to a fine point behind, pellucid 

 white, with a delicate tinge of yellow. There are a few spots of bright orange immediately 

 before and behind the dorsal tentacles, and on the medial line of the back extending towards 

 the tail, at the extreme point of which is a blotch of the same colour. Dorsal tentacles rather 

 long, smooth, nearly linear, swelling slightly towards the base, where they approximate. The 

 lower portion is transparent white ; the upper portion orange, excepting the tips which are 

 whitish. Oral tentacles about half the length of the dorsal ones, and of the same colour ; 

 rather slender, linear, inserted into the upper surface of the lips. Head rather narrow and 

 roundish, the lips not much spreading at the sides. Branckia elliptical, inflated, pellucid 

 white, with the central vessel of a pale straw colour, giving the whole a yellowish white ap- 

 pearance. They are terminated by a broad ring of bright orange, with occasionally a few 

 dusky freckles ; the apex transparent. They are set in nine or ten transverse rows of three 

 or four papillae each, on the sides of the back, nearly approaching in the centre, where they 

 are large and inflated ; those next the sides small. The first row, containing two papillae, 

 approaches very close to the dorsal tentacles. Foot linear, tapering gradually to a fine point 

 posteriorly ; pellucid ; the spawn and viscera appearing through ; anterior portion not much 

 extended laterally, but rounded and slightly bilobed in the centre. 



We have named this pretty species after Dr. Farran of Dublin, a gentleman well known 

 for his love of natural history, and for his fine collection of Irish shells. To him we are in- 

 debted for the opportunity of procuring this and two other new species of Irish Nudibranchs 

 dredged during a little excursion to Malahide in August 1843. 



The single specimen captured, lived with us a considerable time, and was almost con- 

 stantly in motion. The spawn is in form of a broad gelatinous riband, attached by its edge, 

 and coiled openly one and a half times. 



This species is very nearly allied to E. tricolor, but is much more slender, and has the 

 head narrower and more elegantly formed ; the branchiae are rather shorter ; their central 



