Vermes. 



396 



67550 Whitney, D. D. 51.8 Hydatina : 11.044 



1912, The Effects of Alkohol not Inherited in Hydatina senta. Amer. 

 Natural. Vol. 46 p. 41—56. 



51 Whitney, David Day. 51.8 Hydatina : 11.6 



1912. Reinvigoration produced by cross fertilization in Hydatina senta. 

 Journ. exper. Zoöl. Vol. 12 p. 837—862. [Increase of reproduction rate 

 after reciprocal cross-breeding of sister races weakened by long partheno- 

 genesis.] — Reinvigoration Produced by Cross Fertilization in Hydatina 

 senta (i^mer. Soc. Zool.) Science N. S. Vol. 85 p. 474. 11.62,.66 



52 Whitney, D. D. 51.8 Hydatina : 11.6 



1912. "Strains" in Hydatina senta. Biol. Bull. Woods Hole Vol. 22 p. 

 205—218. [Production of male-producing females in parthenogenetic 

 races partly repressed by external factors.] 



53 Shnll, A. Franklin. 51.8 Hydatin a : 13.6 



1912. Studies in the life cycle of Hydati7ia senta. III. Internal factors 

 influencing the proportion of male-producers. Journ. exper. Zool* Vol. 

 12 p. 283—817, 6 figg. [Decrease (also in size of family) after long con- 

 tinued parthenogenesis in some Unes. Individuals from fertilized eggs 

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



54 rtfartini, E. 61.8 Hydatina : 14 



1912, Studien über die Konstanz histologischer Elemente. III. Hydatina 

 senta. Zeitschr. wiss. Zool. Bd. 102 p. 425—645, 9 Taf., 24 figg. 

 I4.31,.32-.34,.61— .63,.65,.78,.76,.77,.81,.83,.88 



55 Zeîinka, C. 51.85 : 14.63.1 



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

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



56 Marcolongo, I. 51.88 (285 : 45.73) 



1910. Primo contributo allo studio dei Gastrotricha del lago-stagno cra- 

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

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

 67657 de Beauchamp, Paul. 51.89: 11.6 



1912. Contribution à l'étude expérimentale de la sexualité chez Dino- 

 philus. C. R. Acad. Se. Parts 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. Se. p. 416—417. [Sperm deposited in 

 immature female gonad. Maie nuclear component remains distinct 

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

 ponent, maie producing eggs contain both.] 13.13,. 15 



59 Caullery, M. 51.9 : 11.6 



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

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

 de l'hôte, viviparité, larves femelles vont infecter nouveaux hôtes, trans- 

 formation en plasmodes, où cellules germes produisent mâles et femelles 

 qui sortent de l'hôte pour s'accoupler.] 



60 Caullery, M., et A. La vallée, 51.9 Rhopalura : 11.6 



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

 initiales dans l'infection expérimentale de l'Ophiure, Amphiura squamata, 

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

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



61 Schuhotz, H. 51.99 



1912. Ist Trîchoplax die umgewandelte Planula einer Hj-dromeduse ? 

 Zool. Anz. Bd. 39 p. 582—585. [Bedenken dagegen.] 

 67562 Schröder, 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. math.-nat. Kl. Jahrg. 1910 Abh. 6, 8 pp., 15 figg. — Zur Kennt- 

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

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

 der Buddenbrockia plumatellae Ol. Schröder. Verli. nat.-uied. Ver. Heidel- 

 berg N. F. Bd. 11 p. 280-237, 13 figg. 



