REPORT ON THE EADIOLARIA. 1445 



1. Stichopterium pterocanium, n. sp. 



Shell campanulate, with three distinct strictures. Length of the four joints = 2:3:4:3. 

 Cephalis subspherical, with a conical horn of twice the length. Pores regular, hexagonal, with thin 

 bars. From the collar stricture arise three divergent ribs, which in the fourth joint become 

 latticed and prolonged over its mouth into three slender, pyramidal, latticed, divergent feet, nearly as 

 long as the shell. (Similar to Pterocanium bicorne, PL 73, fig. 5, but with four distinct strictures.) 



Dimensions. Length of the shell (with four joints) O12, breadth O'l. Length of the single 

 joints, a 0'02, b 0'03, c 0'04, d 0'03. 



Habitat. South Pacific (off Patagonia), Station 304, surface. 



2. Stichopterium virgineum, n. sp. 



Shell three-sided, pyramidal, with four sharp strictures. Length of the five joints = 

 1:4:3:2:1. Cephalis hemispherical, with a pyramidal horn three times the length. Pores 

 subregular, circular, in the second campanulate joint twice or three times as broad as in the four 

 other joints. From the base of the cephalic horn arise three divergent ribs, which descend over the 

 whole shell, and in the fourth joint become latticed and prolonged over the wide mouth of the fifth 

 joint into three latticed, pyramidal feet, as long as the second joint. (Similar in general form to 

 Pterocanium virgineum, PI. 73, fig. 6.) 



Dimensions. Length of the shell (with five joints) 0'22, breadth 016. Length of the single 

 joints, a 0'02, b 0'08, c 0'06, d 0'04, e 0'02. 



Habitat. Central Pacific, Station 281, surface. 



3. Stichopterium dictyopodium, n. sp. 



Shell subovate, with five internal annular septa. The third and the fourth joints are about 

 twice as long as the two first and the two last joints. The fifth joint is the broadest. Pores 

 small and numerous, regular, circular. The three first joints are without ribs. From the third 

 stricture arise three divergent, triangular, latticed wings, which descend along the three last joints, 

 and are prolonged over the wide mouth as three slender, fenestrated, divergent feet, two-thirds as 

 long as the shell. 



Dimensions. Length of the shell (with six joints) 0'18, breadth 0'12. Length of the two 

 middle joints 0'04, of the four others 0'02 to 0'03. 



Habitat. South Pacific, Station 288, surface. 



Genus 631. Podocampe, 1 Haeckel, 1881, Prodromus, p. 439. 



Definition. S t i c h o p i 1 i d a (vel Stichocyrtida triradiata aperta), without lateral 

 ribs or wings, but with three free, solid, terminal feet. Cephalis with a horn. 



1 Podocampe = Caterpillar with feet ; 



