384 Mr. T. D. A. Cockerell's ISfotes on Slugs. 



Lhnacella Hemphilli (W. G. Binney). 



Tebemwplwrvs Hemphilli, W. G. Binnev, Man. Anier. Land-Shells, 

 1885, p. 247 ; Third Suppl. Terr. Moll."lT. S. 1890, pi. vi. fig. h. 



Georgia and North Carolina. Jaw ribbed. 



Limncella austrah's (Bergh). 

 Oaliu, Sandwich Islands. Jaw ribbed. 



LimaceUa confusa^ sp. no v. 



Limacella bilineafa (Kef. et auett. plur. (uon Bens.) sp., as Philomycus, 

 &c.). 



Very close to L. nebulosa, at least externally. Long. 34 

 niillim., sole, lat. 6 millim., respiratory orifice 6 millini. from 

 anterior border. Head and sole pale yellow, unicolorous ; 

 sole finely transversely wrinkled all over. Mantle rather 

 rugose, ground-colour pale yellowish, clouded with brown- 

 grey dorsally, with also numerous dorsal dark spots, tending 

 to form oblique lines running centrally backwards. Sides 

 with broad black bands and dark marbling below them. Jaw 

 not ribbed. 



The above description is from a specimen in the British 

 Museum labelled " Challenger coll., May 1875, Yokohama, 

 Japan." It is the so-called hilmeatus\ it is like v. Martens's 

 figure of that species copied by Tryon. W. Keferstein (Mai. 

 Blatt. 1866) figures L. striata and L. confasa (as P. bilineatus), 

 the latter from Yokohama, witii tlie anatomy. The anatomical 

 characters of confusa offer differences from those of the 

 American nebulosa, so that, apart from their geographical 

 ranges being distinct, they need not be confused. 



Limacella formosensis, subsp. no v. 



Length 33 millini., sole 4 millim. broad ; respiratory orifice 

 5 millim. from anterior border of mantle. Elongate-cylin- 

 drical, slightly tapering, dark coffee-colour; sole unicolorous, 

 transversely thickly but finely granulose-wrinkled ; back 

 with an ill-developed, median, narrow black band, and better- 

 developed, narrow, black lateral bands in the situation of the 

 upper edge of the bands of L. confusa ; area between the bands 

 (subdorsal) slightly dark-marbled. Sides below lateral bands 

 dark-marbled, with a slight tendency towards the formation 

 of a lower second lateral band. Face with two longitudinal 

 grooves. Back granulose. 



