840 THE ANIMAL KINGDOM. 



Dimorphic zooids of Zoothamnium ophioidea, Kellicott, Journal R. Micr. Soc. (2), 

 v. 1885, p. 78; Connection of Vorticellidae to other Infusoria, Biitschli, M. J. xi. 

 1885 ; Gerda, Phillips, J. L. S. xvii. 1883 ; Spirochona, Lagenophrys, Plate, Z. W. Z. 

 xliii. 1886, pp. 200-15 ; Torquatella, E. Ray Lankester, Q. J. M. xiv. 1874. 



Hypotricha, ' Beitrage,' &c., Oxytrichidae, Sterki, Z. W. Z. xxxi. 1878; cf. 

 Wrze'sniowski on Kowalewski in Biol. Centralblatt. iii. 1883-4, p. 235. 



General Anatomy, Maupas, A. Z. Expt. (2), i. 1883, pp. 570-661. 



Envelope of Ophrydium, Halliburton, Q. J. M. xxv. 1885 ; Harker, Brit. 

 Association Reports, 1885, p. 1074. 



Adoral cilia =. pectinellae, in Heterotricha and Hypotricha, compound nature of 

 ventral cilia of latter, Moebius, Biol. Centralblatt. vi. 1886-7, P- 539; cf- van Rees, 

 ' Zur Kenntniss der Bewimperung der Hypotricheji,' Amsterdam, 1881 ; action and 

 insertion of cilia, Engelmann, Pfliiger's Archiv fur Physiol. xxiii. 1880, pp. 507, 521, 

 530; Bristle of Vorticellidans= a membrane, Gruber, Z. W. Z. xxxiii. 1880, p. 460-1 ; 

 Biitschli, Z. W. Z. xxviii. 1877, p. 67 on Fig. 21, Taf. vi; Ge"za Entz, Mitth. Zool. 

 Stat. Naples, v. 1884, p. 417. Organs of attachment in Stentor, Gruber, Z. A. i. 

 1878. 



Muscle fibrils, Brauer, J. Z. xix. 1886, pp. 500-11; Wrzdsniowski, Z. W. Z. 

 xxix. 1877. pp. 287-95. 



Glycogen, Maupas, C. R. ci. 1885, p. 1504 ; Barfurth, A. M. A. xxv. 1885, pp. 

 314-18. Birefringent corpuscles, Maupas, A. Z. Expt. (2), i. 1883, p. 616; ibid. iii. 

 p. 352 and note. Stentorin, E. Ray Lankester, Q. J. M. xiii. 1873; chlorophyl, see 

 p. 245, and note 3 p. 833, ante. 



Nucleus and paranucleus, Jickeli, Z. A. vii. 1884; multinucleate forms, Gruber, 

 Biol. Centralblatt. iv. 1884-5 ; Id. Z. W. Z. xl. 1884, pp. 140-48; Maupas, A. Z. 

 Expt. (2), i. 1883, pp. 652-61 ; division of nuclei in Opalina, 'Zur Kenntniss,' &c., 

 Pfitzner, M. J. xi. 1885. 



Contractile vacuole, Wrze'sniowski, Z. W. Z. xxix. 1887, pp. 309-13 ; Fischer, 

 Archives Slaves de Biologic, 1886; two in some Vorticellae, Stokes, Amer. Monthly 

 Micr. Journal, vi. 1885 ; cf. Lembach, in Journal R. Micr. Soc. (2), 1882, p. 355. 



Conjugation. Exchange and union of paranuclei or their parts, Maupas, 

 C. R. cii. 1886, p. 1569; ciii. 1886, p. 482; Gruber, A. N. H. (5), xviii. 1886, p. 

 164; exchange of parts of nuclei, Schneider, Tablettes Zoologiques, i. 1886, pp. 

 79-80; cf. Biitschli, Abhandl. Senck. Ges. x. 1876, pp. 262 et seqq; Engelmann, 

 M. J. i. 1876 ; significance of process, Plate, Z. W. Z. xliii. 1886, pp. 215-28 ; p. 239. 



Distribution of marine Infusoria, Ge"za Entz, Mitth. Zool. Stat. Naples, v. 

 1884, pp. 432-9; Marine Tintinnus in Swiss lakes, Imhof, Z. A. viii. 1885, p. 293. 



Influence of light on growth, Fatigati, C. R. Ixxxix. 1879, p. 959. Rate of mul- 

 tiplication, Maupas, C. R. civ. 1887, p. 1006; cf. Id. Leucophrys patula, ibid. ciii. 

 1886, p. 1270, and civ. 1887, p. 308. 



CLASS MASTIGOPHORA. 



Plegepod Protozoa in which the organism during the chief part of its 

 life is provided with one or more vibratile flagella as organs of locomotion 

 and alimentation. A mouth and oesophagus sometimes present ; nutrition 



