14(3 CEYLON PEARL OYSTER REPORT. 



OPHIUEOIDEA. 



Pectinura gorgonia (M. and T.). 



Gulf of Manaar, pearl banks; Station LXIIL, west of Periya Paar, 36 fathoms ; 

 Station X., off East Cheval Paar, 6 fathoms. 



Both adult and young stages were found in abundance on the pearl banks. 



Pectinura intermedia, Bell. 

 Gulf of Manaar, pearl banks ; Station L, off Negombo, 12 to 20 fathoms. 



Ophiura, sp. 

 From the Cheval Paar. This is not O. kinbergi, which is known from this 

 neighbourhood. 



Amphiura, sp. 



At Station LIII. , 1 miles north of Cheval Paar, 9 fathoms ; Station XLVII. , 

 south of Cheval Paar, 9 fathoms ; also off the south-east coast of Ceylon (see 

 Professor Bell's Notes below, p. 149). 



Ophionereis, ? sp. 

 Young forms from the Cheval Paar, 6 to 8 fathoms. 



Ophiocnemis marmorata (Lamk.). 

 Trincomalee, various localities, February, 1902; Gulf of Manaar, March, 1902; 

 Station VI., Muttuvaratu Paar, 6 to 9 fathoms; Station XVII., west of Periya Paar, 

 11 fathoms; Station XX., Back Bay, Trincomalee, 11 to 13 fathoms. 



Ophiocoma scolopendrina, Ag ass. 

 Station LX., outside Muttuvaratu Paar, 20 to 30 fathoms. 



Ophiarachna incrassata, M. and T. 

 Very young specimens, probably of this species, were dredged in deep water off 

 Galle.' 



Ophiothrix, spp. (? 0. aspidota, 0. nereidina, and others). 



Station XL VI, off Mount Lavinia, 25 to 30 fathoms; Station LXIIL, west of 

 Periya Paar, 36 fathoms; off Galle, deep water, up to 100 fathoms; Station XLV, 

 off Pantura, 25 fathoms; on Jokkenpiddai Paar, April 3rd, 1902; on Aripu Reef, 

 shallow water. 



Three " species " from Cheval Paar, from Trincomalee, and from Gulf of Manaar 

 (see Professor Bell's Notes below, p. 150). 



