LIMAX. 349 
This species prefers the immediate neighbourhood of water—lakes in the plains and 
small streams or rivers in mountainous regions. Tate 23 remarks that it is nocturnal 
and can suspend itself by its mucus; this last-mentioned habit has also been observed 
by Normand!” and is common to several other species of Limax (cf. v. Martens, Zool. 
Anzeiger, 1878, p. 249). I follow Jeffreys ©, Prof. H. v. Ihering 2°, and Prof. H. 
Simroth ° ¢ (the principal authority on the systematic arrangement of the slugs at the 
present time) in placing J. campestris, L. stenurus, L. brasiliensis, L. argentinus, 
and L. hyperboreus under the European Z. levis, and I am also obliged to include with 
it the Costa Rican ZL. semitectus, and the N icaraguan Krynickia americana, the 
descriptions and figures of these forms offering no remarkable difference. Concerning 
L. guatemalensis, I have sent some specimens collected by Dr. O. Stoll to Prof. H. 
Simroth, and he found them on anatomical examination to be identical with Z. levis. 
In spite of its very wide distribution, it is not probable that this species has been 
introduced into foreign lands by commerce, as was the case with JZ. variegatus, 
Drap., the favoured haunts of which are cultivated localities. At least this is the 
opinion of Professors v. Ihering and Simroth. Nevertheless, the accounts of its mode 
of capture in Nicaragua and Costa Rica, as given by R. Tate 2% and Gabb 2°, are well 
compatible with the hypothesis of introduction. 
2. Limax jalapensis. 
Limaz jalapensis, Strebel, Beitr. Mex. Land- und Siissw.-Conch. iv. p. 22, t. 10. figg. 5 a, B (living 
animal, c (shell!) (1880) '; Ihering, Jahrb. malak. Ges. xii. p. 216 (1885) ’. 
Reddish-brown, with some black spots on the mantle. Length 23 millim. 
Hab. E. Mexico: Jalapa, on plants (Strebel '). 
According to Strebel and Prof. H. v. Ihering this species appears to be very nearly 
allied to the preceding. 
3. Limax berendti. 
Limaz berendti, Strebel, Beitr. Mex. Land- und Siissw.-Conch. iv. p. 22, t. 9. fig. 10 (radula), t. 10. 
figg. 4a (shell), B (mantle), t. 15. fig. 3 (jJaw)*; Ihering, Jahrb. malak. Ges. xii. p. 214 
(1885) *. 
Greyish-brown, hinder part with very numerous close-set blackish spots. Internal shell rather quadrangular, 
with an elevated longitudinal line, thick, on the lower side not concave, but uneven, tuberculate (perhaps 
not normal?). Length about 14 millim. 
Hab. N. Guatemata: Coban, in a garden (Berendé }). 
4, Limax cobanensis. / 
Limaz cobanensis, Crosse & Fisch. in Journ. de Conch. xx. p. 159 (1872) °. 
Brownish, paler at the sides, mantle reddish. Internal shell oval, narrowed in front. Length 40 millim. 
Hab. N. Guatemata: Coban, in shady places (Morelet '). 
