Coe. — Terrestrial Nemertean of Bermuda. 
PLATE 24. 
Geonemertes agricola. 
Fig. 10. Frontal section of young embryo, showing the solid mass of endo- 
dermic cells (in. 1 ) of the future intestine, the very large brain lobes 
{cb.), the well developed cephalic glands ( gl. ce.), the rhynchodaeum 
leading into an oval chamber in front of brain, and esophagus 
passing into stomach {gas.). X 237. 
Fig. 11. Transverse section through brain region of young embryo of about 
the same age as that shown in figure 10. The large brain lobes 
{cb ) are united to each other by a broad ventral commissure, above 
which is the large proboscis {prb.) and below which is the narrow 
esophagus ( oes .) X 237. 
Fig. 12. Frontal section of anterior portion of body of late embryo showing 
large, vacuolated endodermic cells (in'.), which later form the 
intestinal caecum. The stomach {gas.) is situated directly behind 
the brain lobes. Cerebral sense organ (o. sms.) well developed, 
and broad ciliated canal {can. cil.) opening laterally. X 237. 
Fig. 13. Sagittal section of anterior portion of nearly mature embryo. 
Rhynchodaeum {rhnd.) leads into broad chamber in front of 
brain {cb.), from which chamber the esophagus (oes.) passes to stom¬ 
ach {gas.), and the latter through the long pylorus {pyl.) leads into 
intestine {in.) through a narrow opening {of. pyl.) ; in. coe ., cavity 
of intestinal caecum, which later grows forw-ard through solid 
mass of endoderm cells {in'.). X 237. 
Fig. 14. Parasagittal section of portion of intestinal tract of fully mature 
embryo, showing the arrangement of the vacuolated endodermic 
cells between fibrous dissepiments, thus forming the metameric 
intestinal lobes. X 237. 
Fig. 15. Transverse section through intestinal lobe of mature embryo. 
X 237. 
Fig. 16. Portion of frontal section of integument and lateral nerve (n. 1.) of 
mature embryo, showing relation of glandular {gl.) and ciliated 
cells of integument, the nerve cells {cl. n.) bordering fibrous core 
of nerve, and vacuolated cells of endoderm {in.). X 530. 
