384 
Mr. T. D. A. Cockerell’s Notes on Slugs . 
Limacella Hemphilli (W. G. Binney). 
Tebennophorus Hemphilli , W. G. Binney, Man. Amer. Land-Shells, 
1885, p. 247 ; Third Suppl. Terr. Moll. U. S. 1890, pi. vi. fig. h. 
Georgia and North Carolina. Jaw ribbed. 
Limacella australis (Bergh). 
Oahu, Sandwich Islands. Jaw ribbed. 
Limacella confusa , sp. nov. 
Limacella bilineata (Kef. et auctt. plur. (non Bens.) sp., as Philomycus , 
&c.). 
Very close to L . nebulosa , at least externally. Long. 34 
millim., sole, lat. 6 millim., respiratory orifice 6 millim. 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 u Challenger coll., May 1875, Yokohama, 
Japan.” It is the so-called bilineatus ; it is like v. Martens’s 
figure of that species copied by Tryon. W. Keferstein (Mai. 
Blatt. 1866) figures L. striata and L. confusa (as P. bilineatus ), 
the latter from Yokohama, with the 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. nov. 
Length 33 millim., 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 P. 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. 
