PLANARIANS FROM MAURITIUS AND RODRIGUES cs 
19. Meixner, A., 1906. ‘‘ Zweineue Landplanarien”’, ‘ Zool. Anz.’, Bd. xxix, 
p. 665. 
20. Mell, C., 1903. ‘‘ Landplanarien der Madagassischen Subregion ”’, 
‘ Abhandl. d. Senkenb. naturf. Ges. Frankfurt’, Bd. xxvii. 
1904. ‘Die von Oscar Neumann in Nordost-Afrika gesam- 
melten Land-Planarien ”’, ‘ Zool. Jahrb., Abt. Syst.’, Bd. xx. 
22. Moseley, H. N., 1875. ‘‘ On the Anatomy and Histology of the Land- 
planarians of Ceylon, &c.’’, ‘ Phil. Trans. Roy. Soc.’, vol. clxiv. 
23. Scharff, R. F., 1900. “‘ Rhynchodemus Howesi: a new European 
Species of Terrestrial Planarian Worm”, ‘Journ. Linn. Soc.’, 
vol. xxviii, 
24. Snell, H. J., and Tams, W. H. J., 1920. ‘‘ The Natural History of the 
Island of Rodrigues”’, ‘Proc. Cambridge Phil. Soc.’, vol. xix, 
part 6, p. 287. 
25. Whitehouse, R. H., 1914. ‘“‘ Land Planarians’’, ‘ Rec. Indian Mus.’, 
vol. viii, part 6. 
26. -—— 1919. “* Indian Land Planarians ”’, ibid., vol. xvi, part 1. 
21. 
EXPLANATION OF PLATE 4. 
Fig. 1.—Placocephalus isabellinus Geba in the preserved state, 
seen from the dorsal side. About natural size. 
Fig. 2.—Ditto. Ventral view. 
Fig. 3—Rhynchodemus ceylonicus von Graff in the preserved 
state, seen from the dorsal side. About 1:5 
Fig. 4—Amblyplana ecunrecaiaes oe. n. sp. in the prespeved 
state, seen from the dorsal side. About 2 x. 
Fig. 5.—Ditto. Ventral aspect. 
Fig. 6.—Rh.ceylonicus. Longitudinal section of an eye. 
Fig. 7.—Ditto. Transverse section through the ovarian region. 
Fig. 8.—Ditto. Median sagittal section through the region of the 
copulatory organs. 
ABBREVIATIONS USED IN THE EXPLANATION OF PLATE. 
ed,=ejaculatory duct. gc.=glandular canal. gv.=genital vestibulum, 
i.=intestine. In.—longitudinal nerve cord. ».=nerve. od.=oviduct. 
ov.=ovary. p.=pigment. ps.=penis-sheath. s.=sole. sv.=seminal 
vesicle. vd.=vas deferens. vr.—visual rod. 
