Record of Geology of Texas, ISS^-ISOG. 
49 
55. Ceagin, F. W. 
A Oontril^iition to 'the Invertebrate Paleontology of the Texas 
■Cretaceons. 
Fonrth Annual Rept. of the Geol. 'Snrv. of Texas, 1892, Pt. II, 
pp. 139-294; plates xxiv-xlvi, inclusive. x\ns‘tin, 1893. 
Contents; Introduction. Discussion of 'G-enera and Species. 
Coelenterata — Favia teooana sp. nov. 
Eohinodermata — Ananchytes texana sp. nov. ; Gidaris dixiensis sp. nov. ; 
Cyphosoma volanum sp. nov.; Diptloj^odia hilli, Clark; D. streeruvitzii sp. 
nov. ; D. taffi sp. nov. ; D. texana, Eocm. Dumblea gen. nov. ; D. symmetrica 
sp. nov. Echinohrissus texanus, Clark. Enallaster inflatus sp. nov. ; E. 
texanus, Roem., Epiaster electus sp. nov.; E. elegans, Skum.; E. elegans, 
var. nov. praenuntius; E. hemiasterinus sp. nov.; E. tohitei, Clark. Gonio- 
2 Wg'>^s zitteli, Clark. Hemiaster texanus, .Roein. Holaster completus sp. 
nov.; H. nanus sp. nov.; H. simplex, Shum.; H. sup)ernus sp. nov.; Holecty- 
pus charltoni sp. nov. ; H. planatus, Roem. ; H. transpecosensis sp. nov. 
Leiocidaris hemigranosa, iShum., Orthopsis occidentalis sp. nov.; Pseudo- 
diadema texanum, Roem. *Pyrina bulloides sp. nov.; P. parryi, Hall. 
Salenia texana, Credn. ; Gidaris, sp. 
Molluscoidea — 
Bryozoa. Bifliistra hroivnii sp. nov. ; Poroeystis gen. nov,. P. prunifor- 
. mis sp. nov. 
Brachiopoda. Lingula shumardi sp. nov. 
Mollusca — 
Lamellibranchiata. Aguileria cumminsi, White. Anatina texana sp. 
nov.; A. tosta sp. nov./ Area galliennei, var. nov. tramitensis ; A. [Trigon- 
area) siouxensis, H. and M. Astarte ( ? Stearnsia) acuminata sp. nov. 
Avicula leveretti sp. nov.; A. singleyi sp. nov. Gucullaea gracilis sp. nov.; 
G. gratioti. Hill; G. tippmia. Con.; 0. terminalis. Con.; G. transpecosensis 
sip. nov. GyjJremeria fexcavata, Mort. ; G. erassa, iMk. ; G. gigantea sp. 
nov.; G. texana, Roem. Gyprina mediate. Con.; G. roemeri sp. nov.; G. 
{fRoundairia) strecruvAtzi sp. nov.; G. texana. Con. Gytherea lamarensis, 
iSlium.; G. leveretti sp. nov.; G. taffi sp. nov. Exogyra amerieana, Mareou; 
E. columbella, Mk. ; E. drakei sp. nov.; E. ferox sp. nov.; E. hilli sp. nov.; 
E. laeviuscula, Roem.; E. paupereula sp. nov.; E. plexa sp. nov.; E. weath- 
erfordensis sp. nov. Gervilliopsis invaginata. White. Gryphcea gihherosa 
sp. nov. Hippurites flahellifer sp. nov. Holocraspedum gen. nov. Ho- 
momya jurafacies sp. nov.; E. solida sp. nov. Inoeeramus cumminsi sp. 
nov.; I. multistriatus sp. nov. Isocardia humilis sip. nov. Lima generosa 
sp. nov.; L. semilaevis sp. nov. Modiola filisculpta sp. nov.; AI. jurafacies 
sp. nov. i¥. stoneioallensis sp. nov. Opis texana sp. nov. Ostrea alifera sp. 
nov; 0. alifera var. nov. pediformis; 0. alternans sp. nov.; 0. bella, Con.; 
0. hellaplieata, Shum.; 0. camelina sp. nov.; 0. earica sp. nov.; 0. cre- 
nulimar g o, Eoem.', 0. crenulimargo var. nov. ston&wallensis ; 0. diluvvana, 
Linn.; 0. franklini, Coq. ; 0. luguhris. Con.; 0. lyoni, Shum.; 0. perversa 
sp. nov.; 0. p>lumosa, Mort.; 0. soleniscus, Mk. ; 0. suhovata, Shum.; 0. 
subspatulata, Forbes. Pholadomya ingens sp. nov. ; P. postextenta sp. 
nov. Plicatula dentonensis sp. nov.; P. incongrua. Con. Protocardium 
2 ^endens sp. nov.; P. stonei sp. nov.; P. subspingerum sp. nov. Pteria 
fsalinensis. White. Spondylus hilli, sp. nov. Tapes dentonensis sp. nov. 
