——— a 
ines aE 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6 
Hic. 7 
Fig. 8 
Fig. 9 
Fig. 10 
Fig. 11 
WOODWORTH : SOME PLANARIANS FROM AUSTRALIA. 67 
EXPLANATION OF THE PLATE. 
ABBREVIATIONS. 
dt. ejac. Ductus ejaculatorius. ut. Uterine vesicles. 
gl. pr. Prostate gland. vag. Vagina. 
gl. sh. Shell gland. v.d. Vasa deferentia. 
ov. Ovum. ves. Uterine vesicles. 
ov'dt. Oviduct v. sem. Vesicule seminales. 
pe- Penis. é Male gonopore. 
sp’z. Spermatozoa. 2 Female gonopore. 
Pseudoceros devisii, sp. nov. Drawn from life by A. G. Mayer. X 2. 
Idioplana australiensis, gen. nov., sp. nov. From life; slightly enlarged. 
Idioplana australiensis. To show the arrangement of the tentacular and 
epi-cerebral eye-spots. X 4. 
Idioplana australiensis. Diagram of sexual organs.  X 10. 
Idioplana australiensis. A drawing from five longitudinal consecutive 
sections to show the course of the sexual ducts. X 20. 
3. Diposthus corallicola, gen. nov., sp. nov. Drawn from life; natural size. 
. Diposthus corallicola. Anterior end of corrosive sublimate preparation to 
show the arrangement of tentacular eye-spots. X 4. 
. Diposthus corallicola. Longitudinal section through gonopores. X 47. 
. Diposthus corallicola. Enlarged drawing of prostate gland, from same 
section. X 170. 
. Diposthus corallicola. Diagram of sexual organs.  X 50. 
. Diposthus corallicola. Section through a uterine vesicle. > 160. 
