207 



Echinoderma 



212040 Fisher, Walter K. 30.3 Trophodiscus (26.5) 



1917. Trophodiscus, a New Soa Star from Kamchatka. Proc. U. Si na- 

 tioH. Mus. Vol. 52 p. 367—371, 3 pis. [n. g. almus n. sp.] 



41 Hilton, William A. 39.4 : 14 81 



1916, The Central Nervous System of Serpent Stars. Jour». Entoin. 

 Zool. Clarcmont Vol. 8 p. 171—175, 1 pl. 



42 Mortcnsen, Th. 39.4 (26.7) 



1914. On the alleged primitive Ophiuroid Ophioteresis elegans Bbll ; with 

 description of a new species of Ophiothüa. Mindeskrift Japetus Steen- 

 strup 1. Halvbd. No. 10, 18 pp., 2 pis., 3 figg. [Ophiothela vin'ula n. sp.] 



43 Clark, Austin H. 39.4 (26 7) 



1917. Two New Ophiurans from the China Sea. Proc. biol. Soc. Wash- 

 ington Vol. 30 p. 13—16. [Ophiopteron alatttm and Ctenamphiura sinensis 

 nn. spp.] 



44 Hilton, W. A. 39.4 Gorgonocephalus (79.4) 



1916. An Interesting Basket Star from Laguna Beach. Jouru. Entom. 

 Zool. Claremont Vol. 8 p. 17—18, 1 fig. [Gorgonocephnlus eucnemis.) 



45 Clark, Austin H* 39.4 Ophiomitra (52) 



1916. A New Brittle-star of the Genus Ophiomitra from Southern Japan. 

 Proc. biol. Soc. Washington Vol. 29 p. 225—226. [0. matsumotoi n. sp.] 

 40 Grave, Caswell. 39.4 Ophiura : 13 



1916. Ophiura brevispina. II. An embryological contribution and a study 

 of the etfect of yolk substance upon developinent and developmental 

 processes. Jonrn. Morphol. Vol. 27 p. 413—450, 1 pl., 4 figg. [Later 

 development (blastula and gastrula) mechanically interfered with.] 



13.15,.2 



2120*7 Drecke, W. 39.5 

 1913. Paläontologische Betrachtunsen. III. Ueber Echinoiden. Centralbl. 

 Min. Geol. Pal. 1913 p. 498—507, 526-534. [Lebensverhältnisse fossiler 

 Formen.] 



48 Schnitz, Eugène. IOyaLir*. Eb. 39.5 : 11 



1916. Nouvelles expériences sur la survivance des parties détachées 

 d'un organisme. Rev. zooî. russe T. 1 p. 79—85, 3 figg. — HoBbie onbiTbi 

 HaJTb nepeacHBameM-h HacTen. Pyccs. 30oa. SKypH. T. 1 p. 85—88. [Trans- 

 formation des pieds ambulacraires détachés en boules revêtues d'épir.hélium 

 et encombrées de cellules mésenchymateuses. Formation d'une vaste 

 cavité.] 11.64,.69 



49 Schultz, Kug. 39.5 : 11 



1916. Nouvelles expériences sur la survie des fragments tissulaires. 

 (Réun. biol. Petrograd.) C. R. Soc. Biol. Paris T. 79 p. 207. [Pieds 

 ambulacraires d'un oursin survivent plus d'un mois.] 

 60 Lillie, Ralph S. 39.5 : 11.04 



1916. The physiology of cell-division. VI. Rhythmical changes in the 

 résistance of the dividing sea-urchin egg to hypotonie sea water and 

 their physiological significance. Jonrn. exper. Zool. Vol. 21 p. 369—402. 

 [Décline in résistance to cytolysis during formation of cleavage furrow. 

 Membrane change associated with increased permeability to water-soluble 

 substances and decreased electrical polarization.] 



11.041,044 



51 Packard, Charles. 89.5 : 11.04 



1916. The effect of radium radiations on the rate of cell division. 

 Jonrn. exper. Zoöl. Vol. 21 p. 199—212. [Save in resting stage, brief 

 intense radiation accélérâtes. Effect on activity of enzymes.] 



11.041,.044 



212052 Child, C. M. 89.5 : 11.044 



1916. Axial Susceptibility Gradients in the Early Development of the 

 Sea Urchin. Biol. Boll. Woods Hole Vol. 30 p. 891—405, 20 ftgg. 

 [Especially apico-basal gradient.] 



