102 R. C. PUNNETT. 



III. Heteronemertini. 

 Fam. Eupoliidae. 



2. Eupolia hemprichi. (Ehrenberg, 1831.) ........ p. 104 



3. Eupolia indica, n. sp. Externally marked by a single median dorsal and ventral 



brown line. Head much flattened. Circular head furrow marked by small longi- 

 tudinal grooves inside. Excretory system connected with oesophagus . p. 104 



4. Eupolia unistriata, n. sp. With single median black line. Greatly resembles 



E. melanogramma as regards internal structure ..... p. 106 



Fam. Iiineidae. 



5. Cerebratulus maldivensis, n. sp. Small and somewhat flattened. Cutis feeble. Vascular 



head loop. Head slits reach past cerebral organ. No eyes. Frontal organ present. 

 Excretory system short and with one pair of ducts ..... p. 106 



6. Cereby-atulus maculatus, n. sp. Medium sized and somewhat flattened. Covered with 



black pigment spots. Cutis weak. Vascular head loop. Head slits not past 

 cerebral organ. Eyes. No frontal organ. Excretory system much attenuated and 

 with one pair of ducts p. 107 



7. Cerebratidus gardinei-i, n. sp. Medium sized and somewhat flattened. Cutis feeble. 



Vascular head loop. Head slits prolonged just past cerebral organ. Eyes. Frontal 

 organ present. Excretory .system with one pair of ducts (occasionally more) p. 108 



8. Cerebratulus ischurus, n. sp. Large and powerfully built form. Cutis feeble. 



Vascular lacunar network in snout. Head slits end abruptly where ciliated 

 canal comes off. No eyes. Small frontal organ p. 110 



9. Lineus albovittatus. Blirger, 1890 p. Ill 



IV. Metanemertini. 

 Fam. Amphiporidae. 



10. Prosadenoporus buergeri, n. sp. No external markings. Head glands just past brain. 



Cerebral organ small and with ventral opening. Blind gut with two pockets only. 

 19 proboscis nerves .p. Ill 



11. Drepanophorus roseus, n. sp. Much flattened. Cerebral organ has lateral opening. 



It does not extend behind brain. Eyes very numerous. Proboscis nerves 

 22 p. 112 



12. Drepanophorus cerinus (Burger, 1890) . . . . . . . . p. 113 



ACCOUNT OF THE SPECIES. 



1. Cephalothrix aliena, n. sp. (PI. IV. figs. 15, 16.) 



Represented by .5 cc. of fragments about 1'5 mm. in breadth. Colour dirty white. 

 Ant. end rounded and much contracted. No external markings to be distinguished. Posterior 

 portion missing. 



Locality. Felidu atoll, Maldive Is. Dredged from 20 fathoms. 



