NEMERTINA, TURBELLARIA. 
Verm. 43 
Micrnra varicolor (Heteronemertini), p. 19, M. at.ra , p. 21, pi. ii, fig. 17, 
M. bergenicola, p. 22, pi. i, figg. 8, 14, pi. ii, fig. 18, Bergen, anatomy, 
Punnett, t. c. ; M. leucopsis , Porto Rico, Coe, Bull. U. S. Fish Comm, 
xx, 2, p. 227 : n. spp. 
Nemertopsis actinophila , Arctic regions, Burger, Fauna Arctica iii, p. 58, 
pi. iii, figg. 1, 5-8, n. sp. 
Oxypolella alba, Sweden, Bergendal, Arkiv Zool. i, p. 144, n. sp. 
Tceniosoma discolor , Porto Rico, Coe, Bull. U. S. Fish Comm, xx, 2, p. 226, 
n. sp. 
Tetrastemma lopkohelice , Sweden, Bergendal, Arkiv Zool. i, p. 116, n. Sp. 
Zygeupolia litoralis , structure of head, Bergendal, Zool. Anz. xxvi, 
pp. 254-257. 
TURBELLARIA. 
[The following memoirs relate to Turbellaria : — Bardeen (17), Bresslau 
(51 & 52), Caullery & Mesnil (75), Child (76-78), Curtis (103), Daday 
(107), Dorner (121), Graff (168), Kemna (208), Laidlaw (223-227), 
Lameere (228), Marrow (261), Mast (268), Mattiesen (269 & 270), 
Monti (294), Morgan (296, 298), Sabussow (375), Sekera (391 & 392), 
Yerkes (459), Zacharias (464), Zykoff (475).] 
General Biology. 
Anatomy, histology, and physiology of Fecampia , internal parasites of 
crustaceans, Caullery & Mesnil (45). 
Anatomy and histology of parasitic forms ; with descriptions of para- 
sites, Graff (168). 
Organization of Mesostoma nasonoflii, Zykoff (475). 
Factors in heteromorphic regeneration in Planarians, Bardeen (17). 
Regulation in Stenostomum , Child (77). — Experimental control of form- 
regulation in zooids and pieces of Stenostoma, Child (76). — Regulative 
destruction of zooids and parts of zooids of Stenostoma , Child (78). 
Regeneration in Planarians, Morgan (296). 
Internal influences that determine the relative size of double structures 
in Planaria lugubris, Morgan (298). 
Reactions to temperature changes in fresh-water Planarians, Mast (268). 
Embryology of fresh-water Dendrocceles, Mattiesen (269). 
Reproduction and reproductive organs in Stenostoma, Sekera (391). 
Maturation of the egg and fertilization bf fresh-water Dendrocoeles, 
Mattiesen (270). 
Mode of life of Vortex helluo , Sekera (392). 
Life-history of Planaria maculata, Curtis (103). 
Winter and summer eggs of fresh-water Rhabdoccels, Bresslau (52). 
Revision of classification of Polyclads, Laidlaw (225). 
Affinities to Ctenophora, Lameere (228). 
. Phylogenetic affinities between Ctenophora and Polycladida, Kemna 
(208). 
Distribution. 
Plon, collections in moor ponds, 1 n. sp., Zacharias (464). 
East Prussia, n. spp., Dorner (121). 
Bohemia, occurrence of Vortex helluo , Sekera (392). 
Hungary, Lake Balaton, spp. collected, Daday (107). 
Italian alpine lakes, collection, Monti (294). 
jRussia, fauna, Zykoff, pp. 48-52 (475). 
