EASTERN PROVINCE INTERIOR REGION SPECIES, 237 



white, tortuous, sacculated tube, passiug from the ovary to the vagina. 

 The ueck or portion immediately joiniug the vagina commences usually 

 where the prostate gland terminates, and is contracted to less than 

 half the caliber of the upper portion of the tube. Its iuterior surface 

 exhibits a number of transverse folds, corresponding to the contrac- 

 tions which j)roduce the sacculated appearauce of the organ, and upon 

 the inner side upon each side of the spermatic groove, or longitudinal 

 fold. The generative bladder in L. flavus is a large, pointed, oval 

 receptacle, opening by a very short, wide tube or duct into the vagina. 

 In L. agrestis it is large, elongated, oval, and opens hj a short duct into 

 the angle formed by the junction of the vagina with the male portion 

 of the generative apparatus. In L. camj^estris it is a small, oval sac, 

 with a longer, narrow duct, opening into the tube leading from the 

 penis to the cloaca. In all three species of Umax the cloaca is a short 

 canal opening at the generative orifice on the right side of the head. 

 The characters of the various organs in the other species are given 



below. 



Liiinax cainpestris, Binnky. 



Color usually of various shades of amber, without spots or markings, 

 sometimes blackish ; head and eye-peduncles smoky ; j-j^ 057. 



body cylindrical, elongated, terminating in a very ..^^ 

 short carina at its posterior extremity; mantle oval, 

 fleshy, but little prominent, with fine, coucentrical Umax camj>ostns. 

 lines ; back covered with prominent elongated tubercles and furrows ; 

 foot narrow, whitish ; respiratory foramen on the posterior dextral 

 margin of the mantle; body covered with a thin, watery mucus. 

 Length, about 25"". 



Limax campestris, Binney, Proc. Bost. Soc, 1841, 52; Bost. Journ. Nat. Hist., iv, 169 

 (1842); Terr. Moll., ii, 41, pi. Ixiv, fig. 3.— Adams, Shells of Vermont, 163 

 (1842).— De Kay, N. Y. Moll., 23 (1843).— Leidy, T. M. U. S.,i, 2.50, pi. ii, 

 tigs. 5, 6 (1851), anat.— Tkyox, Am. Journ. Concli., iii, 315 (1868).— W. G. 

 Binney, L. & Fr.-W. Sh., i, 66 (1869) ; Terr. Moll., v, 149.— Gould and Bin- 

 ney, Inv. of Mass., 409(1870). 



Limax campestris, var. occidentalis, J. G. Cooper, Proc. Ac. Nat. Sc. Phila., 1872, 146, 

 pi. iii, fig. C. 



Inhabits all the New England, Middle, and Western States, and is 

 probably widely diflused through the Northern and Interior Eegions. 

 Found also at Aiken, S. C. It has also been quoted from the Pacific 

 Region as var. occidentalis. (See page 239.) 



The resemblances between some of the species of this genus are so 

 great that it is difiQcult to provide them with distinctive characters, 



