THE NAUTILUS. 
Paludina scalaris Jay. 
Patula Cooperi in Colorado and Utah. 8 
Patula caeca Guppy 20, 62 
Patula incrustata Pfr. 63 
Patula strigosa, n. var. subcarinata. . 133 
n. var. bicolor. 133 
n. var. lactea. 134 
n. var, jugalis. 154 
n. var. intersum. 135 
Phenacarion n. ¢. 127 
Physa triticea, Notes on 49 
Planorbis Liebmanii Dkr. 60 
Planorbis cultratus Orb. , 63 
Poecilozonites circumfirmatus var. corneus. 95 
Proceedings of Scientific Societies. 20 
Prophysaon. ; : : ; ; ; 59 
Publications received. : : 12, 24, 35, 47, 71, 83, 107, 144 
Pupa Holzingeri, n. sp. 37, 96 
Pupa calamitosa, n. sp. 61 
Pupa Sterkiana, n. sp. 95 
Pupa Pilsbryana, n. sp. : 123 
Pyrgula, on lingual dentition, ete. of : 107 
Recent addition to the United States Snail Fauna. 61 
Scalaria angulata in New Jersey. 52 
Scalaria, on the New Jersey coast. 106 
Shells new to the United States Fauna. 60 
Sheil collecting in Southern Texas. , ; 60 
Shell Bearing Mollusca of Rhode Island. 21, 39 , 44, 56, 69, 82, 92 
Sphaerium Cubense Prime. 19 
Strobila Hubbardi A. D. B. 20 
Summer Studies in Conchology. 54 
Trochus infundibulum, notes on the soft nS se 2 
Tylodina, on a new species of. 122 
Unio complanatus in Michigan. 16 
Valvata (Lyogyrus) Brownii, notes on. 67 
What is a species ? : 78, 88 
Word to Young Collectors. 115 
Zonites Ligerus var. Stonei, n. var. 46 
Zonites selenitoides, n. sp. 95 
Zonites (Guppya ?) Gundlachi Pfr. 63 
