ACTEONIA. 615 



Eyes large, at the posterior extremity of the crests, within 

 a pale space, which is continuous on the crests. Foot 

 yellowish, narrower than body, 



Berwick Bay (Johnston). Gregarious and feeding on 

 Confence in small pools above half-tide, at Falmouth 

 (Cocks) ; Cullercoats, in similar situation (Alder) ; and 

 Whitburn (Howse) ; Loughor Marsh, near Swansea 

 (Moggridge and Spence Bate). 



ACTEONIA, QUATREFAGES. 



Animal limaciform. Head large, distinct, crested at the 

 sides, the crests prolonged behind into two short tentacles, 

 behind which are two eyes. Vent dorsal, placed centrally 

 on the back. 



A. coERUGATA, Aider and Hancock. 



Plate C. C. C, fig. 5. 

 Ann, Nat. Hist. 2nd series, vol, i, p. 403, pi, 19, figs. 2 and 3, 



" Body limaciform, black, depressed, somewhat bulged 

 at the sides, and covered with regular wrinkles like an 

 Avion. On each side of the body there is a slightly 

 elevated ridge, with a few pale tubercular spots. Head 

 carinated at the sides ; each carina produced above into a 

 short, flat, ear-like whitish tentacular process. Eyes in 

 circular palish spots at the posterior extremity of the ridges. 

 The posterior extremity is obtuse and pale ; there is also a 

 palish spot near the centre of the back. Foot linear. 

 Lenofth one-eio'hth of an inch." 



Found by Mr. Cocks along with Limapontia nigra, in 

 the same situations at Falmouth. 



