THE NAUTILUS, 
Macrochlamys Dohertyi Henderson, n. sp. (P1. II. figs. 8, 9.)-.-. 
Mariaella Dussumerieri, note on...........-- SSE sent og et gC 
Melampus floridanus Shuttl. in Maryland..........-..-..-..-. 
Melania (Melanoides) badia Henderson, n. sp. (P1. IT, fig 7.)... 
Melania (Melanoides) hercula Gld. var. (PI. IT, fig. 6.)......... 
Mippneke of the Sreat African Lakesee...... --+..-:-..-+-2.+-- 
pemrerndia, Pils. a. Van, 0 sub-g pee... eee le eee ae ae 
Mca GuUAS Dall. TWSp.... MME. s-.ce) cl eee eee @- 
Mytilus Stearnsi Pils. & Raym.. n.n.(Vol. XILI, pl. I. fige. 1, 
i adion ootin Ande CORRE - 0 0 Us sa oeeGoneEoee sn anat 
Nanina(Hemiplecta) marangensis Aldrich. n. sp.’ PI. [.figs. 9, 10 
Powe smieriean lang: SHELIS,..... ...gmeRi= == es oe 
Newramarcan lana shell. (Lllustratedheee+.....2...-.--s. 5. 
New species and varieties of American land shells.............. 
Womenclature of some African shellg.-.-..--.-...-.-.---.... 
moron Mollusks from Arcadia, M@giees =. 22... gine wee 
Notes on some land and fresh water shells from Sumatra, with 
description of new species. ( [lmetrated.).............-.5. 
Notes on Uruguay and Argentine fresh water shells, supple- 
mental to the list in NAUTILUS X, pp. 76-S1............... 
Woontestomus, notes on the genus .geeee.:. 22:5... . 22. wee ene 
Olivella Blanesi Ford, n. sp. (Vol. XLII, pl. I, fig. 4 
Smapnains talizinosa polita Pils., Weyar... 2... -. vee. ee 
Omphalotropis (Selenomphala) dohertyi Aldrich, u sp. (PI. I, 
figs. eR Mate © Pei...) OE. Fars Be Aare 
PMGestrina tnaitator Pils., N.S). Seep +. 4. cpeer eee es ces oe 
Palidestring otearnsiana Pils., 0. SWReeeis. 2... 2. .- a0 senses oe 
Pennsylvanian mollusks from the Ohio River system below 
APA S DUO MCE ec ae... MMM ce ws ac clgee orton = 
Pisidium fallax var. sepentrionale Sterki. n. var................ 
PRN teOPeErL OUCLKI, Nl: SP... .. MMMM occ). cscs ccted ee ces oc 
Pisidium Walkeri var. mainense Sterki, mn. var................ 
-Planispira Aldrichi Henderson, n. sp (PI. IT, figs. 4, 5.)....... 
Planorbis dilatatus Gld. in a abet ee a eee so ines Se 
Polygyra altissima Cockerell, n. ieee Wet IMESICO): 2 5 
Polygvra edvardsi Bld. at Fiza boule TREAT ae oe ae ae 
Polygyra lawe var. tallulahensis Piis. n. var.,.........0.+.... 
Pole yin mMoriyssd, Dalen. sp... Maeemeer ss ss... es. cscs eke 
Polyeyra postelliana sabelausa Pile@eyar. 2.0... .2..- 2... a 
Polygyra richardsoni lingualis Pils., n var hah 
Polygyva rhyssa var. hy porhvssa Cockerell, un. var ...... -.--- 
Rolyevra Reperrin Shasta Count yet@ale-s...... 1... . 5. se. 
Polygyra tridentata var. complanata Pils. n. var ...........-.- 
Eematiopsia calitornica Pils., n spaeeeeeeeer ss. .-.. 630. see 
Postage on Natural History specimens to foreign countries. ... 
Potamolithus jacuhyeusis Pils , n. sp 
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