THE NAUTILUS. 9 



orado, by the Grand River, in Clarfield Co., and by Plateau Creek, 

 in Mesa Co.; e. trifasciata, with three bands, one above the peripliery 

 and two below, all distinct, the area between the first band and the 

 suture marbled with brown, Mam Mountains, Mesa Co., Colorado ; 

 f. alba, white with rough striio, Utah (Hem})hiH). Hemphill also 

 mentions a white variety of Patula strigosa, G\d., from Utah, which 

 may be called var. alba. 



I have recently found Cochlieopa labrica and Hyalina radiatula 

 near here. Also Liw.nmi truncatula and two si)ecies of small 

 Pupa;, which may be new. Theo. D. A. Cockerell, West Cliff, Col. 



On the occurrence of Limosiua in Texas. According to Prime, 

 the species of this group are "widely and abundantly distributed 

 through Central and South America and the West Indies," to the 

 exclusion of the equally abundant species of Sphoirium peculiar to 

 the United States. Several years ago Mr. G. C. Heron sent me three 

 specimens of a Sphcerium from Cedar Creek, Hudson Co., Texas, 

 w'hose unusual shape and mottled epidermis at once struck me as 

 peculiar. On sending one of the specimens directly to Mr. H. A. 

 Pilsbry, of the Philadelphia Academy of Natural Sciences, for iden- 

 tification, I was informed that he could not satisfactorily identifS^ it 

 with any known species, but that it was nearer to L. cubeuse Prime, 

 than to anything else, although for the present the specific identity 

 of the specimen must remain uncertain. The occurrence of this 

 group, hitherto unknown to our fauna within the United States, 

 would seem to be a fact worthy of record. Bryant Walker, Detroit, 

 Mich. 



H. (Fruticicola) shnilaris, Fer., Triodopsis appressa, Say, Steu- 

 ogyra decollata, L., in Bermuda. All three have been probably in- 

 troduced in the past 25 years. During a recent visit, I found the 

 first mentioned near the Government house in Hamilton. The 

 second species was shown me by Miss A. INI. Peniston, of The Fhitts, 

 who secured it from Mr. Bartram. It occurs near St. Georges. 

 The last species is so common it threatens to become injurious to the 

 crops there. It was introduced with some European plants, and 

 first made its appearance at Mt. Longdon. Stenogyra odona Chem., 

 is also found upon the island, and is not mentioned by Bland. T. H. 

 Aldrich, Southern Ave., Cincinnati, Ohio. 



In the Western American Scientist for April, p. 8, ]\Ir. Berlin H. 

 Wright has described as new, under the name of Bulimulus liemp- 

 hilli, the species figured by Binney (Manual N. A. Laud Shells, fig. 

 440) as a variety of £. floridanus. The form in question should be 

 compared with B. inarielinus Poey. 



