COPEPODA. 289 



as long as the other 2 abdominal joints combined ; tumid in centre. Furca very- 

 short. 



Anterior antennae ll)-jointed, all clothed with short setose spines; the 17th carries 

 a long narrow filament. The proportional lengths of the joints are as follows : — 



I. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15 . 16. 17. 18. 1.9. 

 12. 4. 3. 3. 3. 3. 3. 4. 3. b7 7. 7. 7. 7. 7. 8. 9. 4. 6. 



Mandible long, narrow, with 5 biting teeth at apex : palp 1 -jointed, with long 

 terminal plumose setae. Maxilla 2-branched, the smaller one half the length and half 

 the width of the larger branch, both bearing long terminal plumose setae. Maxillipeds 

 and 1st to 5th natatory legs as in Asterocheres ; basal joint of outer branch of 

 1st pair has a broad lanceolate spine on apex of outer margin. 



Several specimens, all females, were found in the washings from Gulf of Manaar 

 sponges, and in the general washings of Invertebrates. The species bears a general 

 resemblance to Asterocheres, but the 19-jointed antennae and the 1-jointed mandible 

 palp separate it therefrom. 



Asteropontius attenuatus, n. sp. — Plate XVIII., figs. 11 to 20. 

 Length, female 0"92 millim. ; male unknown. 



Body attenuated, very narrow in front. Cephalothoracic segment triangular in 

 outline, nearly twice as long as the combined lengths of the 1st, 2nd, and 3rd thoracic 

 segments. Anterior antennae 18 -jointed, with a large sensory filament on the end of 

 the 17th joint. Proportional lengths of the joints : — 



1. 2. 3. 4. 5. 6. 7. 8. 9 . 10. 11. 1 2. 13. 14. 15. 16. 17. 18. 



II. 4. 2. 2. 2. 2. 2. 3. 7.~4. 7.^7. 7. 8. 8. 10. 12. 10. 



Posterior antennae, mandible, maxilla, maxillipeds, and 1st to 4th natatory legs 

 nearly as in Asteropontius typicus. Fifth feet long and very narrow, about 6 times 

 longer than broad, and furnished with 3 apical setae. Abdomen 3-jointed. Genital 

 segment longer than the combined length of the next 2 joints. Anterior portion 

 tumid. Furcal rami short, about 2\ times as long as broad, and equal to the length 

 of the last abdominal joint. 



Two specimens were found in washings from Ceylon Invei'tebrates. 



This species is easily distinguished from A. typicus by its attenuate form and the 

 long narrow 5th feet. 



Collocheres giesbrechti, n. sp.— Plate XVIII. , figs. 1 to 10. 

 Length, female - 67 millim. ; male unknown. 



Body elongate, sub-ovate ; cephalothoracic segment with a rounded forehead and 

 about equal to twice the lengths of the 1st to 3rd thoracic segments combined. 

 Anterior antennae 20-jointed, with a sensory filament on the end of the 18th joint. 

 Proportional lengths of the joints : — 



1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. ID. 20. 

 12.3.3.3.3.3.4.3.4. 3. 4. 7. 5. 7. 7. 8. 8. 9. 5. 9. 



2 P 



