EOLIS. 37 



Habitat : Among seaweeds on the shore at Birkenhead 

 (Price); Mouth of the Dee (Colling wood). [W. Sweden (Lo- 

 ven) ; Kiel Bay (Meyer and Mobius).] 



[Mr. W. S. Kent has lately described, in the ' Proceedings 

 of the Zoological Society,' a new species ( E. Grayi), allied to E. 

 pallida, from the Victoria Docks, which has a triple row of 

 branchial processes on each side of the back, and in which the 

 head-lobes are highly developed.] 



Genus II. E'OLIS*, Cuvier. 

 [PL II. f. 3.] 



Body limaciform, more or less elongated and tapering be- 

 hind, without mantle : tentacles 4 (2 dorsal and 2 oral), linear, 

 non-retractile : branchial processes papillose, linear or fusi- 

 form, arranged in transverse rows, sometimes clustered, on the 

 sides of the back : foot with the anterior angle often much 

 produced : odontophore narrow, consisting generally of a single 

 row of spinous plates ; with large corneous jaws. 



A. Body broad : branchial processes or papillae in numerous 

 transverse rows: lingual plates pectinated. (Eolis proper.) 



1. Eolis papillosa, Linne. 



Limax papillosus, Linn. S. N. p. 1082. E. papUlosa, A. & H. Brit. Nud. 

 Moll. fam. 3, pi. 9. 



Body rather broadly ovate, somewhat depressed; brown, 

 grey, or orange, spotted with brown or purple and white : 

 dorsal tentacles shortish, subcorneal, brown, with white tips : 

 head broad, with generally a triangular mark of opaque white, 

 extending into the oral tentacles, which are longer than the 

 dorsal pair : branchial processes stout, conical, and rather flat- 

 tened, strongly freckled with brown or lilac and white, with 

 white tips ; set in 18-24 close transverse rows : foot having its 

 anterior angles short and pointed. L. 1-5-3. 



Habitat : Under stones between tide-marks, on most parts 

 of our coasts ; not uncommon. 



This is the largest of the British species, and is pretty gene- 



* A mythological name [properly Molis]. 



