AKT. 13 NEW MOLLUSKS OP THE GENUS CHILINA MAESHALL. 5 



surface obscurely spirally striated, the striae more distinct on and 

 above the shoulder and on the lower portion of the body whorl; 

 axial sculpture consisting of low lines of growth hardly visible to the 

 unaided eye. Apex eroded, whorls apparently about five, the body 

 whorl very large. Aperture slightly flared, wide and high, about 

 three fourths as long as the shell. Outer lip simple, angled at the 

 shoulder. Columella white, flattened, slightly arcuate, with a moder- 

 ately thick tooth near its upper end resembling the thread of a stout 

 screw. Half the height of the parietal wall covered with a thick white 

 callus, the upper portion of the parietal wall like the outer surface 

 of the shell. Interior of aperture pinkish white with four broad 

 dark bands. Color of shell light olive greenish with numerous zigzag 

 axial stripes of chestnut which, on the body whorl, are emphasized 

 to form four spiral bands. 



The type. Cat. No. 359908, U.S.N.M., measures : Length, 20 mm. ; 

 diameter, 12.5 mm.; length of aperture, 15 mm. It comes from 

 Southern Chile and was received from Mrs. T. S. Oldroyd. Cat. No. 

 359909, U.S.N.M., includes two other specimens from the same lot, 

 and three others were returned to Mrs. Oldroyd. 



This species is characterized by the smooth, olivaceous periostracum 

 and the beautiful zigzag coloration emphasized into four bands on 

 the bod}^ whorl. Its nearest relative is Ohilina jiuctuosa Gray. 



EXPLANATION OF PLATE. 

 All figures X 1%, 



FiG.l. Chilina oldroydae, new species. 



2. Chilina feUpponei, new species, type. 



3. Chilina oldroydae, new species, 



4. Chilina flammulina, new species, type. 



5. Chilina castanea, new species, type. 



6. Chilina aurantia, new species, type. 



7. Chilina parchappii minor, new subspecies, tj^e. 



8. Chilina oldroydae, new species. 



9. Chilina. olivacea, new species, type. 

 10 Chilina oldroydae, new species, type. 



o 



