COLLECTED BY DR WILLEY. 139 



OPHIUROIDEA. 



The few Ophiuroids with two exceptions are common and widely distributed 

 species ; the exceptions are Ophiomastix mixta, which was collected in the Fijis by 

 H.M.S. Challenger, and Ophiomusium simplex, which was first taken at Amboyna. 



33. Ophiolepis annulosa. 



Ophiura annulosa, Lamk., An. s. Vert. ii. (1816), p. 543. 



Ophiolepis annulosa, M. Tr. Arch. f. Nat. 1840; Lyman, Chall. Rep., Ophiur. (1882), 

 p. 19, ibique citato. 



Loc. Blanche Bay. New Britain. 



34. Ophioinusiiim simplex. 



Ojihiomusium simplex, Lyman, Bull. SIus. C. Z. v. (1878), p. 115 ; id. Chall. Rep., 

 Ophiur. (1882), p. 93. 

 Loc. New Britain. 



35. Ophiocoma erinaceus, SI. Tr. Syst. Aster. (1842), p. 98. 



36. Ophiocoma scolopendrina, Agass., Mem. Soc. Sci. Neuchatel, i. (1835). 



Specimens of these two so-called species from China Straits, British New Guinea, 

 revive the doubts raised by the late Dr Brock as to the advisability of keeping them 

 separate (Zeits. f. wiss. Zool. xlvii. p. 495) ; it is certain that interbreeding experiments 

 w T ould give very interesting result-. 



37. Ophiocoma pica. 



Ophiocoma pica, M. Tr. Syst. Ast. (1842), p. 101. 



I do not remember finding this species associated with the two preceding before, 

 but there is no cause for astonishment at the fact. 



38. Ophiomastix annulosa. 



Ophiura annulosa, Lamk., An. s. Vert. ii. (1816), p. 543. 

 Ophiomastix annulosa, SI. Tr. Syst. Ast. (1842), p. 107. 

 Loc. Loyalty Islands. 



39. Ophiomastix mixta. 



Ophiomastix mixta, Lutken, Vid. Selsk. (5), viii. (1869), p. 99. 

 Loc. Sandal Bay, Lifu. 



20—2 



