Mr. T. D. A. Cockerell's Notes on Slugs. 331 



rather smooth ; foot-fringe black ; sole grey and slightly 

 translucent. Jaw dark brown, with a well-formed median 

 projection. 



This is, I presume, the same as Hesse's u Amalia nov. sp. ?," 

 also from Tangier ; only his example was immature. 



Mr. Ponsonby gave me a dried slug from Gibraltar, no 

 doubt referable to A. gagates, but whether to this particular 

 form I am not able to say. 



Amalia gagates, var. Bedriagce, Less. & Poll. 



This Italian variety, as I am informed by Mr. Pollonera, is 

 entirely black, of the same size as the type, but distinguished 

 by having the lateral zones of the sole entirely black or 

 blackish. 



Amalia {gagates var. or subsp.) mediterranean nov. 



I apply this name to a large black subspecies found in 

 Algeria and Sicily, in which the lateral areas of the sole tend 

 to become dark. A. gagates, var. Bedriagw, Less. & Poll., is 

 very similar in colour, but is a form more closely allied to 

 gagates proper. 



Amalia mediterranea. 



Length (in alcohol) 56 millim. ; mantle 18 millim. long 

 and 9 broad. Respiratory orifice lOf millim. from the ante- 

 rior border of mantle. Hind end of mantle to end of body 

 37| millim. Sole 6j millim. diameter, median area 2f 

 millim. diameter. Colour: all visible parts (except sole) 

 black, anterior part of mantle free and white beneath. Sole 

 with the median area pale ochrey and the lateral areas black. 

 Mantle with a diamond-shaped (four-sided) sulcus ; mantle 

 coarsely rugose or wrinkled, elongate-oval, rounded in front, 

 bluntly rounded behind, slightly emargin ate at the commence- 

 ment of the keel. Body elongate-cylindrical, tapering some- 

 what, keel only well developed posteriorly. Reticulations 

 (sulci) longitudinal or simple, with a finer interstitial network. 

 Mouth strongly wrinkled, slightly olivaceous. Sulcate lines 

 on the sole as in gagates. Rugre on body flattened. Slug 

 rather dull black, though somewhat shiny, quite opaque. 



Described from a specimen in the British Museum from 

 East Algeria, received from Dr. Heynemann. Dr. Kobelt 

 collected a lot of Amalia gagates in North Africa, and it was 

 the opinion of the German malacologists that they could not 

 be distinguished specifically from true gagates. 1 have com- 



