80 TIIK NAUTILUS. 



ered with rays, others without rays and having a bright yellow shining 

 epidermis. In general outline it approaches U. marginis Lea, but is 

 not pointed anteriorly like that species and differs altogether in the 

 color and texture of the epidermis. 



I name this shell after my friend Mr. J. A. Singley of Texas, a 

 gentleman who has done very much towards collecting the mollusca 

 of that state. 

 TJnio Ferrissii 



Shell oblong, inflated, smooth before, slightly plicate posteriorly, 

 rather thick and solid, epidermis dark green or black and shining, 

 with green capillary rays, sometimes rayless, squarish before, pointed 

 behind, umbonial slope raised, obtusely rounded. Cardinal teeth 

 compressed, thick and solid, oblique, single in right valve, double in 

 left, striate. Lateral teeth short and slightly curved, anterior cica- 

 trices not confluent, very deep, posterior cicatrices distinct, nacre pink 

 and iridescent. 



Habitat. A small creek near Pilatka, Florida. 



Remarks. Several years ago I received two shells of this species 

 from Mr. J. B. L^pson, at the time I supposed them to be a variety 

 of TJ. Anthonyii Lea, but having some doubts as to their be- 

 longing to that species, I sent them to Mr. Chas. T. Simpson of the 

 Smithsouiau Institution, who after a very careful examination, pro- 

 nounced them distinct. They differ from U. Anthonyii Lea in being 

 a much smaller species but more inflated and solid, less wide, more 

 cylindrical ; they are not angular over the posterior slope, with a very 

 different epidermis and nacre and much heavier teeth. 



I name this shell after my friend iNIr. Jas. H. Ferriss of Joliet, a 

 gentleman who has done much towards bringing to light many in- 

 teresting species from our own state. 



THE SLUGS OF BRITISH COLUMBIA. 



BY T. D. A. COCKERELL. 



Mr. H. F. Wickham sent me some slugs from Victoria, Vancou- 

 ver Island, in November, 1889 ; and the Rev. J. H. Keen recently 

 sent some slugs from British Columbia to the British JNIuseum, so I 

 have been able to examine suflicient material to offer a list of the 

 slugs of that province, with notes : 



(1) Agriolimax campestris subsj). hyperboreus (Westerlund). 

 Mr. Binney sent me a specimen of this collected at Comor, 140 



