REPORT ON THE RADIOLARIA. 1675 



long as the six alternate ascending, nearly straight, covered with numerous elegant pencils. Each 

 pencil is richly branched, with fifty to one hundred or more thread-like raimiles, and each terminal 

 ramule has two cruciate spathillse, a larger proximal and a smaller distal (figs. 3, 4) ; the four 

 recurved anchor-teeth of the proximal spathilla are twice as large as those of the distal. The 

 distal end of each descending foot bears three or four very stout terminal branches, each of which 

 is about as long as the shell and again trifurcate at the distal end. 



Dimensions. Length of the shell 0'2 to 0'3, breadth 0'4 to 0'5. 



Habitat. Tropical Atlantic, Stations 346 to 348, surface. 



2. Gorgonetta geryonia, n. sp. 



Shell hemispherical, twice as broad as long, with short scattered thorns on the surface. Twelve 

 feet of similar shape to those in the preceding species, but differing in the following characters : the 

 six ascending feet are much smaller, about as long as the breadth of the shell, and each bears only 

 six to twelve short branches ; the six descending feet are about three times as long as the shell, 

 more or less curved ; their pencils much smaller, and the two spathillae of each pencil-thread bear 

 five anchor-teeth. The distal ends are more richly and irregularly branched. 



Dimensions. Length of the shell 0'4, breadth 0'7. 



Habitat. Indian Ocean (Cocos Islands), Rabbe, surface. 



3. Gorgonetta carmarina, n. sp. 



Shell flat, cap-shaped, three times as broad as long. Twelve feet similar in shape to those of 

 the two preceding species, but more irregular in form and arrangement, and differing in the following 

 characters : the six ascending feet are nearly horizontally expanded, one and a half times as long 

 as the breadth of the shell, with few short branches, each of which bears a spathilla with six 

 recurved anchor-teeth. The six descending feet are about five times as long as the shell, irregularly 

 curved, studded with numerous small pencils, each thread of which bears a double spathilla with 

 six teeth. The distal ends are irregularly branched. 



Dimensions. Length of the shell O2, breadth 07. 



Habitat. South Pacific, Station 318, depth 2040 fathoms. 



4. Gorgonetta bisenaria, n. sp. 



Shell campanulate, similar to that of Gfazelletta melusina (PI. 118, fig. 1), with smooth surface. 

 Six ascending feet about as long as the shell, nearly straight, similar to those of Gorgonetta mirdbilis 

 (PI. 119, fig. 1). Six descending feet also similar to those of the latter, but shorter, about twice as 

 long as the shell, strongly curved, studded with numerous small pencils, each thread of which has 

 a double spathilla with three teeth. The distal end of each foot bears a whorl of six to eight 

 irregular forked branches. 



Dimensions. Length of the shell 0'5, breadth 0'4. 



Habitat. Central Pacific, Station 263, surface. 



