PLATE VI. 



Fig. II — I ly. Systellaspis debilis (A. M.-Edw.) var. indica de Man. All the figures are taken from the egg- 

 bearing female, collected at Stat. i6i. — ii carapace and i*? abdominal somite, X 2; 

 \\a third, fourth and fifth somite of the abdomen with the contiguous parts of the second 

 and sixth, X 2; ii^ postero-lateral margin of 4th, iic of 5th somite, X 6; \\d peraeopod 

 of 3''<1 pair, X 6; ii^ proximal, 11/ distal part of dactylus, X 12. 



Fig. 12 — I2C. Acanthephyra purpurea A. M.-Edw. — 12 carapace and the three anterior abdominal somites 

 of the almost full-grown male from Stat. 208, X i '^ (t'le carapace appears on this figure 

 -/j mm. too long!); \2a rostrum of the specimen, long 17 mm., from .Stat. 203, that belongs 

 to the pa rva -stage, X 50; 12^ rostrum of one of the two specimens from Stat. 230, long 

 20 mm., that also belongs to the par va-stage, X 50; I2c first, second and third abdominal 

 somite of the young specimen, long 34 or 35 mm., from Stat. 230, in which the 3rd somite 

 presents still the characteristic shape of the par va-stage, though the rostrum is already 

 formed like in the adult. 



Fig. 13 — 13^. Acantlupliyra arviata A. M.-Edw. — 13 telson of the adult male from Stat. 161, X 2; 

 I3rt extremity of telson of a male from Stat. 173, >C 4. 



Fig. 14 — 14^. Acanthephyra media Bate var. obliquirostris de Man. Male from Stat. 148. — 14 carapace, 

 X 2; 14^ telson, X 4; ^^b and 14c eyepeduncle looked at respectively from above and 

 from the outer side, X 6. 



F'g- 15 — 'S'^- Acanthephyra curtirostris W.-Mas. — 15 the left eyepeduncle of the adult female from 

 Stat. 217, X S; 15^ the right eyepeduncle of the adult male from Stat. 185, X 8; 15/; the 

 right eyepeduncle of the young specimen from Stat. 48. In the three figures the eyepeduncle 

 is looked at from above. 



Fig. 16. Acantliephyra sp. — Rostrum of the first specimen from Stat. 230, X 50. 



