205 EchinoderHia 



212013 Clark, William Bullock, and Majrille W. Twitchell. 39 (78) 



1915. The Meeozoic and Cenozoic Echinoderniata of the United States. 

 U. S. geol. Snrv. Monogr. Vol. 54, 341 pp., 103 pis. [Clark: 43 nn. spp. 

 in : Isocrinus 2, Encrinus, Aspidura, Cidaris 7, Pentacrinus 2, Ophiogli/pha, 

 Rolectypus 2, Hypodtadema, Leptarbacia n. g., Orthopsis, Heterodiadema, Cot' 

 taldia, Micropsis, Echinobrissus, Cassiduluit, Curdia^ter, Hemiaster 3, Orthe- 

 chinus, Hemipatagus 2, Schizaster 3, Linthia 2, Eupatagus 2, Macropneusten, 

 Sarsella, Coelopleurus 2, Gagaria, Echinocardium. — Twitcuell : '60 nn. spp. 

 in : Echhioci/amus 2, Scutella 3, Periarchus, Echinanthus, Cassidulus 8, Breg- 

 nella, Loganum 5, Amblgpygus, Oligopygus, Echinolampas, Sismondia 2, Den- 

 drasier 2, Astrodapsis, l),plothecanthus.] (1161 — 111*) 



(74.4,.9, 75.2,.o-76.2,.4,.7, 78.3,.G— .9, 79.2,.4,.6) 39.1,.4,.5,.8 



14 Wanner, J. S9.1 



1916. Eifelocrtnus und Peripterocrinus, nom. nov. (Synonymische Be- 

 merkungen). Zeitschr. deutsch. geol. Ges. Bd. 68 B p. 200. [Eifelocrtnus 

 n. nom. pro Ptilocrinus Wanner nou Clabk, Peripterocrinus pro Thalasso- 

 crinus Wannbk non Clabk.] 



15 Clark, Austin Hobart. 39.1 : 14 



1915. A Monograph of the Existing Crinoids. Volume 1. The Coraatu- 

 lids. Part 1. Bull. U. S. nation. Mas. No. 82, VI, 406 pp., 17 pis, 513 

 figg. [Structure and anatomy.] 



13.1,.15,.41, 14.31,.34,,35,.61,.63,.67,.7,.78,.83,.84,.88,.89,.92 



16 Clark, Austin H. 39.1 : 14. 



1915. A Phylogenetic Study of the Recent Crinoids with Special Re- 

 ference to the Question of Specialization through the Partial or Complete 

 Suppression of Structural Characters. Smithsou. miscell. Coll. Vol. 65 

 5o. 10, 67 pp. 

 212017 Clark, Austin H. 39.1 : 14.92 



1915. A Study of Asymmetry, as Developed in the Genera and Families 

 of Recent Crinoids. Amer. Natural. Vol. 49 p. 521—546, 6 figg. [Devia- 

 tions from true pentamerous symmetry from internal (type senescence) 

 or external (phylogenetically excessive cold or warmth) unfavorable con- 

 ditions.] 



18 Schmidt, W. E. 38.1 (114) 



1915. Arthroacantha H. S. Williams -= Platyhexacrinus W. E. Schmidt.. 

 Centralbl. Min. Geol. Pal, 1916 p. 119-125, 3 figg. [2 nn. spp. in: 

 Arthroacantha.] (43.42,.52,.56) 



19 Wright, James, jun. 39.1 (115) 



1914. On the Occurrence of Crinoids in the Lower Carboniferous Lime- 

 stones of Fife. Trans. £diubargit geol. Soc. Vol. 10 p. 148—163, 4 pis. 



20 Clark, Austin H. 39.1 (52.1) 



1916. Three Interesting Additions to the Crinoid Fauna of Sagarai Bay 

 and Suruga Gulf, Japan. Proc. biol. Soc, Washington Vol. 29 p. 105— 

 108. [3 nn. spp. in : Comantheria, Dichromctra, Prometra.] 



21 Williams, S. R. 39.1 Agelacrinites : 14 



1916. The Stiucture of Agelacrinites, a Fossil Echinoderm (Cistoid) of 

 the Richmond. (Amer. Soc. Zool.) Science N. S. Vol. 43 p. ISO. 



22 Clark, Austin H. 39.1 Conianthns (931) 



1916. The First New Zealand Crinoid. Proc. biol. Soc. Washington 

 Vol. 29 p. 48. [Comanthus trichoptera n. var. btnhami.] 



23 Raymond, Percy E. 39.1 Cyclocystoides (113) 



1915. Notes sur les Cyclocystoides. Canada Miuist. Mines Comm. geol. 

 Mas. commem. Victoria Bull. No. I p. 29—39. 



24 Wanner, J. 391 Lodanella (114j 



1915. Neues iiber Lodanella mira E. Kays. Palaeout. Zeitschr. Bd. 2 p. 

 81-87, 1 fig. 

 212025 Bather, F. A. 39.1 Merocrinns ni3) 



1915. Note sur le genre Merocrinus Walcott. Canada Miuist. Mines 

 Comm. geol. Mus. commem. Victoria Bull. No. 1 p. 13—17. 



