206 BULLETIN OF THE 



Limax Hewstoni, J. G. Cooper. 



On Plate II. Fig. 4, will be found a better figure of the dentition of this 

 species than is given in Terr, Moll., V. It will be seen that the inner side 

 cusp of the lateral teeth is quite distinct from the side spur found in Limax 

 Hemphilli and agrcstis. (See line third of p. 223.) 



I have figured (Plate VIII. Figs. D and I) individuals received from Dr. 

 Cooper, drawn by Mr. Theo. D. A. Cockerell. 



Limax campestris, var. occidentalis. 



The specimen figured on Plate VIII. Fig. H, was kindlj- furnished by Dr. 

 Cooper. I have already expressed my belief in the identity of this with the 

 Eastern form. 



Arion foliolatus, Gould. 



It is with the greatest pleasure that I announce the rediscovery by Mr. 

 Henry Hemphill of this species, which has hitherto escaped all search by 

 recent collectors. It has till now been known to us only by the description 

 and figure of the specimen collected by the Wilkes Exploring Expedition, 

 almost fifty years ago, and given in Vols. II. and III. of Terrestrial Mollusks. 

 A single individual was found in December, 1889, at Olympia, Washington, 

 and sent to me living by Mr. Hemphill. It can thus be described. (See 

 Fig. A of Plate VIII.) 



Animal in motion fully extended over 100 millimeters. Color a reddish 

 fawn, darkest on the upper surface of the body, mantle, top of head, and eye- 

 peduncles, gradually shaded off to a dirty white on the edge of the animal, 

 side of foot, back of neck, and lower edge of mantle, and with a similar light 

 line down the centre of back ; foot dirty white, without any distinct locomo- 

 tive disk ; edge of foot with numerous perpendicular fuscous lines, alternating 

 broad and narrow ; mantle minutely tuberculated, showing the form of the 

 internal aggregated particles of lime, the substitute of a shell plate, reddish 

 fawn color with a central longitudinal interrupted darker band and a circular 

 marginal similar band, broken in front, where it is replaced by small, irregu- 

 larly disposed dots of same color ; these dots occur also in the submarginal 

 band of light color. Body reticulated with darker colored lines, running 

 almost longitudinally, scarcely obliquely, toward the end of the tail, and con- 

 nected by obliquely transverse lines of similar color, the areas included in 

 the meshes of this network covered with crowded tubercles, as in Prophysaon 

 Andcrsoni, shown in Plate IX. Figs. I, J. Tail cut off by the animal. (See 

 page 207.) 



What appears to be the same species, or a very nearly allied one, was found 

 by Mr. Hemphill at Cray's Harbor, Washington, on the banks of the Chehalis 

 River, near its mouth. This form is figured on Plate VIII. Fig. C. When 

 extended fully, it is 70 millimeters long. It is more slender and more pointed 



