Vermes. 39g 



67550 Whitney, D. D. 51.8 Hjdatiiia : 11.044 



11)12. The Effects of Alkohol not Inherited in Hydatinu senta. Amer. 

 Natural. Vol. 46 p. 41—56. 



51 Whitney, David Day. 51.8 Hydatiua : 11.6 



1912. Reinvigoration produced by cross fertilization in Hydatina senta. 

 Journ. exper. Zool. Vol. 12 p. 337 — 862. [Increase of reproduction rate 

 after reciprocal cross-breeding of sister races weakened by lony; partheno- 

 genesis.] — Reinvi£oration Productcl by Cross Foitilization in Hydatina 

 senta (Amer. Soc. Zool.) Science N. S. Vol. 35 p. 474. 11.62, .63 



52 Whitney, D. D. 51.8 Hydatiua : 11.6 



1012. "Strains" in Hydatina senta. Biol. BrII. Woods Hol« Vol. 22 p. 

 205—218. [Production of male-producing females in j>arthenogenetic 

 races partly repressed by external factors.] 



53 Shnll, A. Fraukiiu. 51.8 Hydatina: 13.6 



1912. Studies in the life cycle of Hydatina senta. III. Internal factors 

 influencing the proportion of male-producers. Jonru. exper. Zool. Vol. 

 12 p. 283 — 317, 6 figg. [Decrease (also in size of family) after long con- 

 tinued parthenogenesis in some lines. Individuals from fertilized eggs 

 are ail female-producers. Sex determined one generation in advance.] 



54 .ttartiui, E. 61.8 Hydatina: 14 



1912- Studien iiber die Konstanz histologischer Elemente. III. Hydatina 

 senta. L-^eltschr. wiss. Zool. Bd. 102 p. 425—645, 9 Tat., 24 figg. 

 14.31,.32-.84,. 61— .63,.65,.78,.76,.77,.81,.&3,.88 



55 Zelinka, C. 51.85 : 14.63.1 



1912. Die Spermatozoen der Echinoderen uud ihre Genese. Verh. 8. 

 intern. Zool. Congr. Graz p. 520—527, 10 figg. 



56 Marcolongo, I. 51.88 (285 : 45.73) 



1910. Primo conlributo alio studio dei Gastrotricba del lago-stagno cra- 

 terico di Astroni. Monit. zuol. ital. Anno 21 p. 315— 318. [7 nn. spp. in : 

 Chaetonotus 5, Dasydytes, Anacanthoderma n. g. Anacanthodermidae n. fam.] 

 67557 de Beauchamp, Paul. 61.89: 11.6 



1912. Contribution a I'etude experimentale de la sexualite chez Dino- 

 philus. 0. R. Acad. Sc. Paris T* 154 p. 1836—1838. 11.62 



58 Shearer, C. 51.89 : 13 



1912. The Problem of Sex Determination in Dinophilus gyrociliatus. 

 Rep. 81st Meet. Brit. Ass* Adv. Sc. p. 416—417. [Sperm deposited in 

 immature female gonad. Male nuclear component remains distinct 

 during segmentation. Egg cells yielding males contain only female com- 

 ponent, male producing eggs contain both.] 18.13,. 15 



59 Canllery, M. 51.9 : 11.6 



1912. Le cycle evolutif des Orthonectides. Veih. 8. intern. Zool. Con- 

 gr. Graz p. 765—774, Disc. p. 774 — 775, 1 fig. [Fecondation au dehors 

 de I'hote, viviparite, larves femelles vont infecter nouveaux botes, trans- 

 formation en plasmodes, oii cellules germes produisent males et femelles 

 qui sortent de I'hote pour s'accoupler,] 



60 Canllery, M., et A. Lavallee. 51.9 Rhopfilura : 11.6 



1912. Recherches sur le cycle evolutif des orthonectides. Les phases 

 initiales dans I'infection experimentale de I'Ophiure, Amphiura squamata, 

 par Rhopalura ophiocomae Giard. Bull, scient. France Belgique (7) T. 46 

 p. 139-171, 2 pis., 6 figg. 



61 Schubotz, H. 51.99 



1912. 1st Trichoplax die umgewandelte Planula einer Hjdromeduse? 

 Zool. Anz. Bd. 39 p. 582 — 586. [Bedenken dagegen.j 

 67562 Schroder, 0. 51.99 Buddenbrockia : 16.9 : 47.2 



1910/12. Eine neue Mesozoenart {Buddenbrockia plumatellae n. g. n. sp.) aus 

 Plumatella repens L. und PI. fungosa Pall. Sitz.-Ber. Heidelberg. Akad. 

 Wiss. mafh.-nat. Kl. Jahrg. 1910 Abh. 6, 8 pp., 15 figg. — Zur Kennt- 

 nis der Buddenbrockia plumatellae Ol. Schiiodkb. Zeitschr. wiss. Zool. 

 Bd. 101 p. 79—91, 2 Taf., 5 figg. - Weitere Mitteilungen zur Kenntnis 

 der Buddenbrockia plumatellae Ol. ScnnooER. Verh. nat.-med. Ver. Heidel- 

 berg N. F. Bd. 11 p. 230-237, 13 figg. 



