THE NAUTILUS. 93 



A NEW PERUVIAN CHIONE. 



BY IDA S. OLDROYD. 



CHIONE MERIDIONALIS n. sp. Plate IV, figs. 3, 4. 



Shell of medium size, somewhat triangular elongate, quite 

 flat; concentrically laminated, the laminae crenated, erect, ten 

 in number, evenly spaced; interstices radiately ridged with fine 

 ribs bundled in threes, evenly spaced. Ligamentary area very 

 broadly excavated, with brown markings. Lunule narrow, 

 elongate, faintly marked with brown and circumscribed by an 

 incised line. Nymphs smooth, like young C. gnidia. Teeth 

 smooth. Valve margins crenulate. Ligament inset, but show- 

 ing externally. Color cream-white, with brown marking, in- 

 terior white. 



It is something like a young C. gnidia in sculpture, but the 

 laminae are not scalloped as in that species, and it is a small 

 shell compared with that. It is elongate, while C. gnidia is 

 ovate. The accompanying plate will show the difference in the 

 two species. Figures 1 and 2 are C. gnidia. 



Type locality, Peru. The type is in the University of Cali- 

 fornia Museum, locality number 3135. One specimen is in the 

 Stanford University collection. 



LAND SHELLS OF SOUTHERN FLORIDA. 



BY E. G. VANATTA. 



The following species of land shells were picked from leaf- 

 mould collected by Mr. Clarence B. Moore in Southern Florida 

 during the winter of 1919 and 1920, at stations not recorded in 

 THE NAUTILUS volumes XIX (1905), page 40; XXI (1908), 

 page 99; XXVI (1912), pages 16, 31; XXXIII (1919), page 18. 



All the records of Bifidaria contracta Say in those lists should 

 be changed to Gastrocopta contracta peninsularis Pils., which 

 differs from the typical contracta as indicated on page 17 of THE 

 NAUTILUS, Vol. XXVI (1912). 



