22 NEW-YORK FAUNA MOLLUSCA. 



LlMAX CAMPESTRIS. 



L. campestris. Binnev, Family Limacidas, op. sup. cit. 



Description. Body cylindrical, elongated, terminating in a very short carina at its posterior 

 extremity. Mantle oval, fleshy, but little prominent, with fine concentric lines. Back covered 

 with prominent elongated tubercles and furrows. Foot narrow. Breathing-hole on the 

 posterior dextral margin of the mantle. Body covered with a thin watery mucus. 



Color, usually of various shades of amber, without spots or markings, sometimes blackish ; 

 head and tentacles smoky ; foot whitish. 



Length, 1 ' 0. 



This species, according to its author, is nearly allied to the L. agrestis, with which it may 

 probably prove to be identical. It is said to be much smaller, and at all ages possesses a 

 peculiar gelatinous or semitransparent consistency. Its tuberosities are very prominent, and 

 it does not secrete a milky mucus at every part of the surface when touched. Like agrestis, 

 it is very active in its movements, and suspends itself by a mucous thread. 



It is found under decaying wood and stones. It occurs in this State and northwardly, and 

 has been seen in Ohio and Missouri. 



(EXTRALIMITAL.) 



L. gracilis, (Ferussac, Mollusques, p. 23.) Mantle fulvous ; back brown. Western States. 



L.f dorsalis* (Philomycus id. Binney, op. cit. p. 14.) Body attenuated behind. No mantle. Breath- 

 ing hole very minute, and about an eighth of an incli behind base of the upper tentacle. Color, ashen 

 above, with a shade of blue and an interrupted black line along the back. Length, 0*75. Ver- 

 mont, Massachusetts. 



* This species undoubtedly exhibits the type of a new genus, but its characters have not yet been defined. 



