218 AMERICAN JOURNAL 



obliquely to the left at the base, columellar lip but slightly 

 curved, perpendicular. Color light brown, with a few black, 

 irregular, longitudinal streaks, and covered by innumerable 

 light chesnut-brown punctations or dashes, very distinct within 

 the aperture. 



Dimensions. — Length 16 millimetres, width 10 mill.; length 

 of aperture 7 mill., width 4 mill. 



Habitat. — Amazon Eiver. 



My Cabinet. 



Observations. — This shell is allied to Melania 2Iacappa, 

 Moric, M. atra, Eich., and more especially to M. brevior, Trosch. 

 It is shorter and wider than the two former, and is of much 

 lighter texture, and differs in color and markings from the 

 latter. It is a very beautiful species. 



Melania loricata, Eeeve, (Monograph, f. 198,) == Hemisinus 

 olivaceus, Behn, (Eeeve Monog. Hemisinus, f. 12.) 



