1904.] MARIXE FAUXA OF ZAXZIBAR. 319 



Wasin Harboiu- yielded seven, of which four are quite small 

 (1 mm. or so broad) and the rest intermediate in size between 

 these and the specimens from Zanzibar. 



In the Maldives six very small incomplete specimens (measuring 

 1'5 mm. in breadth) were dredged from 30 fathoms off Suvadiva 

 Atoll from a rough stony bottom. These are interesting in that 

 they ai'e sexually mature in spite of their size and the tmdeveloped 

 state of their gills, of which the largest consist of three or four 

 filaments and do not by any means cover the back. Thi'ee of 

 these specimens are distended with large ova and three with 

 sperm. 



Foui-, 1 mm. wide, fiom 20 fathoms off Korth Mahlos Atoll, 

 with small gills and an abundance of yellow-bi'own pigment. 

 Another, still smaller and with gills of only two filaments, was 

 dredged in the northern part of Minikoi lagoon from 7-9 fathoms 

 of water, and two very small fi'agments wei'e dredged off" Mahlos 

 from 23 fathoms, bottom sand, stone, a.nd weeds, and off Fadiffolu, 

 12 fathoms, bottom hard sand and sponge. 



The form of the body is, as usual, characteristic, and notably 

 different from that of E. antBnnata and E. murrayi in the smallness 

 of the prostomium and nari-owness of the buccal and first two 



Text-fio-. 61. 



X .5 



Sections of body of E. iiidiaa. 



a. Tlivough buccal or succeeding two or three segments. 



b. Middle of gill-region. 



c. At I length of bodj'. 



From a full-sized specimen ; the smaller ones are rounder. 



abi-anchiferous segments. The only cylindrical portion of the 

 body being thus inconspicuous, the whole appears flattened. The 

 broadest and flattest part of the body is not far behind the 

 head, near the beginning of the branchiferous region. These 

 proportions are shown in PI. XXII. fig. 9 and text-fig. 61, which 

 represent the condition of a preserved specimen *. It was noted 

 at the time of killing that the slender anterior end is especially 

 contractile in this species. 



As regards colour, notes made from the living animals give the 

 following variations : — A fair-sized specimen from Chuaka was 



* In comparing these figures with that given by Gravier {I. c. pi. xiii. fig. 70), it 

 must be borne in mind that veiw small specimens such as the one he exarnined are 

 far less contractile on Idllinii- than are the adults. 



