﻿45 2 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vol. 47 



maica. The species from Cedar Keys which I listed in Proc. U. S. 

 Xat. Mus., vi, p. 335, as A. auberiana Orbigny, is not Orbigny's 

 species. The latter is probably a Rissoid, and the Cedar Keys species 

 is likely to prove identical with A. turricula H. C. Lea (as Cingnla) 

 described from South Carolina. The possession of cotypes of C. B. 

 Adams Pliasianella concolor, received from the author, enables me 

 to feel certain about the identification of Mr. Bryant's shells. 



Cyrena colorata Prime. 



South side of Abaco, and at Riding Point, Grand Bahama. 



This is not exactly a fresh water shell, but occurs in the mud of 

 brackish marshes. 



Cyrcnoida americana Morelet. 



South side of Abaco ; also Cuba and Porto Rico. 

 This has a situs similar to that of the last species. 



EXPLANATION OF PLATES 

 All the figures are natural size. 



Plate LVIII 



Fig. 1. Cerion variabilc Dall, var. pupilla Dall p. 440 



2. Cerion inconspicum Dall p. 439 



3. Cerion oweni Dall, var. vermiculum Dall p. 444 



4. Cerion inconspicuum var. laennorum Dall p. 439 



5. Cerion plegmatum Dall p. 44 1 



6. Cerion variabile Dall, typical form p. 44° 



7. Cerion watlingense Dall p. 438 



8. Cerion oweni var. reticulatum Dall. The bluish spiral color- 



markings do not photograph clearly p. 44 



9. Cerion branncum Dall p. 44 l 



10. Cerion oweni var. incisum Dall p. 444 



n. Cerion northropi Dall p. 44 2 



12. Cerion oweni Dall, typical form p. 443 



13. Cerion canonicuni Dall p. 439 



14. Cerion variabilc var. saurodon Dall p. 44° 



15. Cerion glans Kiister, var. obesnm Dall p. 437 



Plate LIX 



Fig. 1. VcroniccUa schivelyce Pilsbry, var. baliamcnsis Dall. The color- 

 markings and the median pale line do not show in this 

 photograph from an alcoholic specimen p. 44 () 



2, 7, 8. Ccpolis androsi Dall p. 43& 



3, 4, 5. Cepolis smirna Dall. The specimen figured is smaller than 



the type and slightly bleached p. 435 



6. Rhytidopoma cuploca Dall p. 44" 



