COPEPODA. 291 



The other characters are the same as those of the genus. Furcal rami lone and 

 divergent, extending a little beyond the edge of the carapace. 



One specimen, a female, was found in the Muttuvaratu pearl oyster washings. 

 This species has a longer and less rounded body than the succeeding one, the only 

 known species for which it could be mistaken. The jointing of the anterior antennas 

 also serves to distinguish it. 



Lepeopsyllus ovalis, n. sp. Plate XIX., figs. 30 to 33. 



Length of female 1*4 millims. ; male unknown. 



Carapace more rotund than in L. typicus hut otherwise very similar. Anterior 

 antennae 13-jointed, the proportional lengths of the joints being as follows : 



1. 2. 3. 4. 5. (3. 7. 8. 9. 10. 1 1. 12. 1 3. 

 21. 10. 17. 5. 4. 7." 4. 4." 7. 5. 2. 4. 2. 



The other appendages are practically the same as those of L. typicus. Furca are 

 entirely covered by the carapace. Two specimens, both females, were found in the 

 general washings from dredged Invertebrates. 



Besides the difference in shape of the carapace, the jointing of the anterior antennas 

 serves to distinguish this species from L. typicus. 



Doropontius, n. gen. 



Body nearly circular ; cephalic and thoracic segments produced laterally into strong 

 points. Abdomen of the female 3-jointed, anterior antenna? 17-jointed. Posterior 

 antennas as in Asterocheres manaarensis. Mandible, maxilla, maxillijjeds and 

 lst-4th pairs of natatory legs as in Asterocheres. Fifth pair of natatory legs 

 2-jointed. 



Doropontius denticornis, n. sp. Plate XX., figs. 1 to 5. 



Length, female - 9 millim. ; male unknown. 



The cephalic segment shield-shaped, forming about f of the entire animal. Second 

 and 3rd thoracic segments have each an obtuse lateral tooth. Abdomen short; 

 genital segment about twice as broad as long, laterally excavated to form an 

 upper and a lower tooth, the latter rounded posteriorly. The 2nd and 3rd segments 

 together hardly equal in length to the 1st, and about twice as broad as long. 

 Anterior antenna 17-jointed, the proportional lengths of the joints being as follows : 

 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. .12. 13. 14. 15. 16. 17. 

 19. 6. 13. 5. o.TToTgTg. 7T 7. 7. 8. 10. 3. 6. 2. 

 The lower margin of the 4th joint is prolonged into a strong pointed tooth, and the 

 14th joint bears a long filament. Furcal rami quadrate, rather longer than broad. 

 A few specimens, all females, were found in washings from Gulf of Manaar sponges 



2 P 2 



