IV 



THE NAUTILUS. 



Campeloma riifum meridionale Pils., n. subsp 



Ceriphasia Swain,, replaces Pleurocera Tr3'on 



Cerithium branneri Hall & Ambrose, n. sp. 



Chitons, fossil Californian 



Chromodoris zebra Heilp. . . . . .103 



Columbella arnoldi Dall, n. n. for C. minima Arnold 

 Columbella hypodra Dall, n. n. for C. variegata Stearns 

 Columbella lucasana Dall., n. n. for C. festiva Kiener 

 Columbella milium Dall, n. n. for C. jjarva Sowb 

 Columbellidae, notes on the West American 

 Common names ...,., 

 Contradens cambojensis (Sow.), the anatomy of 

 Cypraea, monstrosities in. .... 



Euconospira missouriensis, a color- marked 

 Euconulus chersinus trochulus Reinh., in New Jersey 

 Eulimastoma, a new subgenus of Pyramidellids 

 Eurynia arkansasensis Lea 

 Eurynia lienosa Conr. .... 



Eurynia subrostrata Say .... 



Fresh-water mollusca of Oneida Lake, N. Y 

 Fresh-water shells from Central and Western N. Y. 

 Gonidea angulata, the anatomical structure of 

 Goniobasis in Western Pennsylvania. 

 Goniobasis pennsylvanica Pilsbry, n. sp. . 

 Gwatkin, Henry Melvill (obituary) . 

 Helices, antiquity of the .... 



Hemphillia malonei Pilsbr}^, n. sp. (PI. IV, fig 



Holospira bryantwalkeri Pilsbry, n. sp. (PI. 1\ 



Horatia (Hauffenia) micra P. & F. . 



Hyriopsis myersiana (Lea), the anatomy of 



Kobelt, Dr. Wilhelm 



Lampsilis luteola group, notes on 



Lampsilis radiata oneidensis F. C. Baker, n. var 



Lampsilis ventricosa satur Lea . 



Lemiox rimosus Raf., the anatomy of 



Leptoxis Raf., replaces Anculosa 



Limax Arborum in a Colorado greenhouse, 



Loboa brunoi von Ihering n. gen. and sp. (PI. IV, fig. 7) 



Macoma wilcoxi Hall & Ambrose, n. sp 



Mactra beali Hall & Ambrose, n. sp . 



Martyn's Universal Conchologist 



Melanella iotoides Bartsh, n. n. for M. iota 



Mesodesma pacifica Hall and Ambrose, n. sp 



Missouri mussels, breeding records of 



Missouri River as a faunal barrier 



Mollusca from San Bernardino Co. , Cal., additional records 



9) 

 fig. 



(PI 



0) 



11) 



42 



114 



70 



71 



140 



26 



27 



25 



26 



25 



120 



106 



34 



114 



72 



73 



54 



55 



55 



5 



29 



50 



4 



4 



119 



83 



117 



124 



84 



85 



12 



74 



74 



56 



39 



114 



120 



121 



81 



80 



130 



72 



79 



13 



92 



37 



