INDEX. 



[Names in italic are synonyms; figures in black-face type are numbers of page on which detailed descriptions appear; 



figures in italic denote illustrations.] 



Acteonidae .23 



Alectryonia Fischer 12 



Alectryonia carinata 



(Lamarck) 12, 30 



Alectryonia carinata Hill 12 



Anomia Miiller 14 



Anomia geniculata n. sp 14, 32 



Anomidae 14 



Area galliennei d'Orbigny 11 



galiiennei var, tramitensis 



Cragin 11 



Arcidae 11 



Arthropoda 27-28 



Artica Schumacher 17 



compacta (White) 17, 4% 



Barbatia Gray 11 



micronema Meek 11 



simondsi n. sp 11, 30 



Brachyura 27-28 



Cephalopoda 24-26 



Cerithiidae 20 



Cerithium Adanson 20 



aguilerae Bose 21 



debile Zekeli 21 



haidingeri Zekeli 22 



hilli n. sp 21, 48 



schumardi n. sp 21, 48 



stantoni n. sp 20, 48 



Cinulia Gray 23 



conradi n. sp 23, 48 



pelleti n. sp 23, 48 



Crassatellitidae 17 



Crustacea 27 



Crustacean indet 27, 54 



Cylindrites Lycett 23 



whitei n. sp 23, 48 



Cytherea leonensis Conrad 18 



leonensis Hill 18 



Pistulana Bruguiere 19 



ruperti n. sp 19, 42 



Pusidae ,22 



Fusus Lamarck 22 



simondsi n. sp 22, 50 



texanus Shattuck 22 



GasteroDoda 20-24 



Gastrochaenidae 19 



Graptocarcinus texanus Roe- 



mer 27, 54 



texamts Roemer 27 



Homomya Agassiz 15 



budaensis n. sp 15, 84, 36 



vulgaris Shattuck 16 



Inoceramous Sowerby 12 



sp 12, 30 



Janira wrightii Shumard 13 



Meretrix Lamarck 18 



budaensis n. sp 19 



leonensis? (Conrad) . . . . 18, 42 



Modiola Lamarck 15 



austinensis n. sp 15, 32 



Mollusca 11-26 



Mytilidae 15 



Ostreidae 12 



Ostrea carinata Roemer et al. . . . 12 



Pachymyidae 16 



Pachymya Sowerby 16 



austinensis var. budaensis 



n. var 16, 38, 40 



austinensis Shumard et al 16 



compacta White 17 



Pecten Miiller 13 



wrightii (Shumard) 13, 30 



Pectinidae 13 



Pelecypoda 11-20 



Pernidae 12 



Pholodomyacidae 15 



Pinna Linnaeus 11 



sp 11, 30 



Pinnidae 11 



Pleurophoridae 17 



Plicatula geniculata n. sp 15 



Ringiculidae 23 



Spondylidae 13 



Spondylus Linnaeus 13 



cragini n. sp 13, 32 



hystrix Goldfuss 14 



texanus n. sp 14, 32 



Stearnsia White 17 



robinsi White . . . 17, 42 



roUnsi White 17 



Tapes Mergerle von Muhl- 



feldt 19 



austinensis n. sp 19, 42 



Turrilites Lamarck 24 



brazoensis Roemer 24, 52 



brazoensis Roemer 24 



gravesianus d'Orbigny 25 



roemeri n. sp 24, 52 



tuberculatus Bosc 25 



Turrilitidae 24 



Tylostoma Sharpe 20 



harrisi n. sp 20, 48 



hilli n. sp 20, 44, 46 



Veneridae 18 



Vola (Janira} wrigntii Hill 13 



Vola torightii Cragin 13 



Volutidae 22 



Volutilithes Swainson 22 



austinensis n. sp 22, 50 



