ECHINODERMATA CLARK, 541 



-and Algeria, and those from North America, are to be distin- 

 guished from each other, and I believe they should all be united 

 under the specific name squamata, Delle Chiaje. - " The specimens 

 from Cape Frio, Brazil, are labelled tenera, Ltk., but I cannot 

 see that they are essentially different from squamata, and I am 

 inclined to agree with Koehler,^^ that tenera is not entitled to 

 I'ecognition even as a variety. The specimen from Talcahuano, 

 on the other hand, is easily distinguishable, and T think is 

 entitled to specific rank. It is labelled squamata, but I propose 

 to call it L.EViDiscA, sp.nov., because of the smooth, rather 

 indistinct scaling of the disc. The other characters are given in 

 the following key, by which the three species here recognised may 

 be distinguished : — 



Disc severed by numerous (150-300) scales ; upper arm- spine 

 more or less flattened ; arm- joints short, about equal to or 

 shorter than spines. 



Disc-scales distinct (when dry) ; outer margins of 

 radial shields decidedly convex ; upper arm-spine 

 narrow, moderately flattened; white spot at outer 



ends of radial shields squamata. 



Disc scales indistinct (even when dry), appearing as 

 though a smooth, delicate skin covered the whole 

 disc ; outer margins of narrow radial shields nearly 

 straight ; upper arm-spine wide and very flat, others 



similar; no white spot on radial shields hevidisca. 



Disc covered by 100-150 scales; upper arm-spine slender, 



terete; arm-joints long, commonly exceeding the spines. ... uustraliana. 



Both Lyman-" and Koehler^'^ report squamata from Australia. 

 I find it hard to believe that such eminent authorities on Ophi- 

 urans as are these savants should be mistaken, but it is certainly 

 very remarkable if Amjjhipholis squamata occurs, as well as 

 australiana, in Australian waters. 



OPHIOCNIDA PILOSA. 



Ophiocnida pilosa, Lvman, Bull. Mus. Comp. ZooL, vi., 2, 1879, 

 p. 32. 



1 specimen from Station 13. Off Cape Three Points, 41-50 

 fathoms ; sticky mud and shell. 



1 specimen from Station 55. Off Crookhaven River, 11-15 

 fathoms ; sand to rock. 



2 specimens from Station 57. Off Wata Mooli, 54-59 fathoms; 

 all mud. 



2 Leach's Ophiura elegans is absolutely unrecognizable. 

 21 Koehler— Bull. Sci. France et Belg., xli., 1907, p. 305. 

 2 2 Lyman—" Chall." Report, Zool., v., 14, 1881, p. 1.36. 

 23 Koehler— Ophiuroidea : Fauna Sudwest Australiens, i.,3-5, 1907, p. 244. 



