Iv THE NAUTILUS. 
Hpitoninm clarki Oldroyd, m:sp..)) (2... 224/44 ee eee 115 
Ensis directus Conr. 20.0026 bedieas so. eee eee 60 
Huconulus fulvus (Mull.)) ooo a eee 14 
Hurynia nebulosa (Conrad) \..).0 20... 4.006. eee 90 
Eurynia perpurpurea (Lea) (oo... cds... ee 90 
Burynia vanuxemensis (ea)... ..\.\)..... «20.08 see ot 
Ferrissia adamsi Walker, n. sp. (pl. 3, figs. 7-9) ........ 74 
Ferrissia blandi Walk., n. sp. (pl. 3, figs. 10-12) ........ 15 
Ferrissia jJamaicensis Walker, n. sp. (pl. 3, figs. 1-3) .... 73 
Florida, shells of Orlando .))0..5: .: 35.6.2 31 
Florida, shells of the east coast. . ....... 0.00. . eee 119 
Fusconaia barnesiana Lea .. 26... 5... «s se eee eee 83 
Fusconaia cuneolus Lea. 5 20.25 kek ae ee 82 
Fusconaia edgariana Lead .. .. 5.6). ssnes6e pee 83 
Pusconaia pilaris Lea 00002200 oo oe ee eer 81 
Galba vahli (Beek): ..)0.555.4.4\. 3.5 oe eek eee 68 
Gastrocopta holzinger apna Pils, .........c.s85 se eee 29 
Gastrocopta pellucida hordeacella Pils. ................ 13 
Gastrocopta rupicola Say ..... .)...5..% ase eee 108 
Gonyodiscus cronkhitei Anthonyi Pils. ................ 14 
Gonyodiscus shimeki cockerelli Pils. ...............-.- 5 
Guatemala mollusea .): 20>. s0:5 » «sir et tee eee ee ee 37 
Haplotrema. concava Say ..:. ....:. «s/c» ocis culties 28 
Helicina occulta Say ...... ‘a leet ie» @ceins ladaxdlohele gitar 64 
Hemisinus rugimosus Mor. : . ....5.).)..).0¢s se eee 47 
Hinkley, Anson A. (obituary and portrait) ............ 55 
Lampsilis higginsii Lea, anatomy of ................0.- 80 
Land mollusks of the Belgian Congo .................. 102 
and shells from Beaver Co., Pa... . 2.2 :22 eee 28 
Land shells of Chokoloskee Key and Cape Sable, Fla..... 108 
Land shells of Southern Florida ...:.....:¢2 eee 93 
Lasmigona holstonia Lea. .....:.......)</:.. «1s e)18 spae 87 
Thastena lutea Rak. . 2... 2.0. os os es cp ol ee 7 
Lexingtonia dolabelloides Lea .. ......°.3..)s0 cutee 83 
Liguus at Mareo, Wlorida. . ... .)4.\-.2 ce sis ple p ee ee 139, 140 
Liguus fasciatus simpsoni, n. subsp. ....<. 2. Seen 140 
Loess deposits near Alton, Illinois ............s sss oe 61 
Luecidella tantilla Pils. .........5 o2.4: so le bpeee Siete 108 
Lymnaea emarginata Say and L. ampla Mighels, type 
localities Of ) 2... ..:. 6 2s .)s.< the 6.0 ie ave ee a rik! 
Juaymnaea stagnalis appressa Say ..........a0neeeeee 10 
Marine mollusca about New York City ...... sag eee 59 
Medionidus conradicus Lea’... ...:.2.2./teene eee 90 
Modiolus demissus Dillwyn, in San Francisco Bay ...... oI 
Mussels, on the erosion and thickness of shells of the 
fresh ‘water (oi)... 66 os eased pi te ds elece ete 15 
