CIDARIS METULARIA. 5 



In October and November of 1904, this species was collected by the 

 " Albatross " at the following localities : 



Perico Island Panama, one fathom ; three specimens. 

 Toboquilla Island, Panama, shore; one specimen. 

 Chatham Island, Galapagos, shore ; eight specimens. 



Cidaris metularia Bl. 



Ciaarites metularia Lamarck, 1816, Anim. s. Vert. Ill, p, 56. 



Cidaris metularia Blainville, 1830, Zoophytes : Diet. Sci. Nat., LX, p. 212. 



Plate 1, figs. 5-7. 



All three kinds of pedicellariae are present, usually in considerable 

 numbers. 



The large globiferous pedicellarice (PL 1, fig. 6) are like those of C. 

 tribuloides, but are a trifle smaller. The stalks are one or two times as long 

 as the valves and are provided with a conspicuous limb (PL 1, fig. 5), which 

 seems to be always present. They occur on the interambulacra, chiefly 

 abactinally. 



The tridentate pedicellariae (PL 1, fig. 7) are similar to those of tribu- 

 loides. The valves are about .80 mm. in length and the stalks are about 

 equal to them. These pedicellariae are common everywhere except on the 

 abactinal system. 



The small globiferous pedicellarite (PL 1, figs. 4--5) are like those of 

 tribuloides, but a little smaller, the valves usually about .35 mm. long. ; the 

 stalks are one to three times as long as the valves. They occur every- 

 where on the test and are very common. 



None of the two hundred and ninety-six specimens of this widely dis- 

 tributed Indo-Pacific species show any notable peculiarities, and they differ 

 from Zanzibar examples only in their brighter color. They were taken by 

 the "Albatross" at the following stations. 



Station 3838. Off S. coast of Molokai. Bott temp. 67'. 92-212 

 fathoms. Fne. gy. br. s. 



Station 3847. Off S. coast of Molokai. 23-24 fathoms. S. st. 



Station 3849. Off S. coast of Molokai. Bott. temp. 67.6^ 43-73 

 fathoms. Crs. s. brk. sh. co. 



Station 3861. Pailolo Channel, and N. E. approach. 30-52 fathoms. 

 Fne. s. sm. p. co. 



