28 



PALUDINA SUBPURPUREA, Say. 



Plate 9. 



P. testa conica, subpurpurea: spira elongata, apice sub- 

 convcxo: anfractibus quinis, convexis: sutura impressa: 

 apcrtura ovato-rotundata. 



SYNONYMS AND REFERENCES. 



P. SUBPURPUREA, Say. Disscminator, vol. ii. p. 245. 

 Mrs. Say's reprint, p. 21. Am. Conch., pi. xxx. fig. 2. 



DESCRIPTION. 



Animal "very pale bluish, with minute yel- 

 low points, particularly on the rostrum, tenta- 

 cula, and prominent respiratory tube, which is 

 as long as the tentacular eyes on the exterior 

 side of the tentacula,* near the middle of their 

 length: the anterior portion of the foot is very 

 short." — Say. 



Shell ovate-conic, composed of about five 



* Say followed the foreign authorities in considering this to he 

 the plural form; whereas it is the singular, the plural being ten- 

 taculse. 



