INDEX 



TO 



THE NAUTILUS, XXVIII. 



INDEX TO SUBJECTS, GENERA AND SPECIES. 



Acmaea, notes on some northwest coast 13 



Agaronia gibbosa Born 103 



Agarouia gibbosa auraiitia Johns, n. var 103 



Agriolimax from Guatemala 55 



Agriolimax guatemalensis motaguensis Ckll. n. subsp. . . 57 



Alasmidonta (Pegias) fabula (Lea) 65 



Alasmidonta (Pressodonta) minor Lea 46 



Alasminota Ortmann n. subgen. of Symphynota 41 



Amygdalonaias donaciforniis Lea 67 



Ancylida?, notes on the classification of 23 



Annularia eburnea prestoni Ramsden n. subsp 50 



Annularia mayensis Torre & Ramsden n. sp 50 



Anodonta oregonensis Lea 43 



Antillean Paleogeography, notes on 84 



Area limula Conr. on Long Island 85 



Arkansas, Unione fauna of Cache River 73 



Ashmunella heterodon Pils 112 



Ashmunella mogollonensis Pils 110, 112 



Ashmunella pilsbryana Ferriss 110 



Bathytoma from the upper pleistocene of San Pedro, Cal., 



a new form 64 



Bathytoma clarkiana Rivers n. sp. (PL III, f. B. C.) .... 64 



Billu'ps, A. C. (obituary) 34 



Birds transporting food supplies 71 



Boston Malacological Club 82 



Brachiopoda, retention of color 93 



Brachypodella brooksiana Gundl. (PL I, f. 5) 5, 6 



Brachypodella obesa and suturalis Weinl 132 



Brachypodella ramsdeni Torre n. sp. (PL I, f. 2) 5 



Brachypodella torreana Ramsden n. sp. (PL I, f. 1) ... 4 



British Columbia, notes on mollusks from 87 



(* * " \ 

 m) 



