The Echinoderm Fauna of South Africa. 325 



facts that it is otherwise quite a typical remotus and that there is 

 some individual diversity in remotus as to the thickness of the disk 

 spinelets, it is better to consider this one an individual variant. 



P.F. 2218. Lion's Head, E. 18 miles, 104 fins. 151k. spc, and i. 

 5 specimens; adult. 



P.F. 2289. Lion's Head, N. 67 E., 25 miles, 131-136 fms. Blk. 

 spc. 1 specimen; young. 



P.F. 2766. Vasco de Gama Point, N. 40 E., 13 miles, 120 fms. 

 R. 19 specimens; adult and young. 



P.F. 2798. Vasco de Gama Peak, N. 71 E., 18 miles, 230 fms. 

 Sts. 1 specimen; small adult. 



P.F. 11359. Tugela River, N.W. by N. \/ 4 N., 24 miles, 65-80 fins. 

 R. 10 specimens; small adult and young; 1 hexamerous. 



P.F. 13227. Cove Rock, N.W. 3; 4 \y., 13 miles, 80-130 fins. Clr. ? 

 1 specimen ; adult. 



P.F. 13455. Sandy Point, N.E. by N. 6 miles, 51 fms. Erk. sh. 

 and st. 1 specimen ; young. 



P.F. 13576. Stalwart Point, N.N.W., 9 miles, 53 fms. S. and sh. 

 1 specimen; small adult. 



Bathymetrical range, 51-230 fms. 



AMPHIURIDAE. 



Although thirteen species of this family are now known from the 

 South African region, they represent only four of the twenty genera, 

 and in view of the large number and wide distribution of the species 

 of Amphiuridae it must be admitted the group is not adequately 

 represented around the Cape. A striking feature of the family's 

 occurrence is the apparent absence of the cosmopolitan species, 

 Ophiactis savignyi, although three other species of Ophiactis do occur. 

 It is highly probable that a considerable number of the smaller 

 amphiurids will be found by more intensive collecting but it is evi- 

 dent from the PIETER FAURE collection that local conditions are not 

 particularly favorable to the Amphiuridae. The thirteen species, here 

 recorded, may be distinguished from each other as follows. 



Key to the South African Species of Amphiuridae. 



Tip of each jaw occupied by a pair of block-like oral papillae. 



Two oral papillae on each side of each jaw, the second being at its distal angle. 

 Tentacle-scales none ..... Amphiura dilatata. 

 Tentacle-scales present. 

 Tentacle-scale single. 



