GEODIA AMPHISTRONGYLA. 



247 



Northwestern and western Pacific. Coast of China; Lingin: Coast of 

 Cochin China, 11° 5' N., 108° 50' E. Tcrnate. 



Geodia kiikenthali Thiele. 

 Abhandl. Senckenb. gesellsch., 1900, 25, p. 43, plate 2, fig. 15. Lendenfeld, Tierreich, 190.3, 19, p. 112. 



Irregularly ellipsoidal. Whitish, in the interior yellowish. 



La7-ge amphioxes: 2.8 mm. by 50 /i. Small amphioxes: in the choanosome 

 among the large ones; 300 by 9 /<. Orthoplagiotriaenes: rhabdome over 3 nun. 

 long, about 50 /x thick; clades either concave to the rhabdome throughout or 

 curved in the opposite direction distally, 300 /x long. Mesoprotriaenes: rhabd- 

 ome 3.7 mm. by 10 /<; clades over 150 /x long. Afiatriaenes: rhabdome 20 /x 

 thick and about as long as the mesoprotriaene-rhabdome; clades strongly re- 

 curved, 80 n long. 



Large subcortical asters: rare; rays numerous, rather stout, rough, cylin- 

 droconical and blunt; total diameter 30 /t. Small choanosomal asters: rays 

 pointed or blunt; total diameter 17 /x. Small dermal sphaerasters: total diame- 

 ter 12 //. Sterrasters: 70 by 55 /_(. Sterroids; with distant rays. 



Western Pacific. Ternate. 



Geodia amphistrongyla Lendenfeld. 

 Ante, p. 175. 



Irregular, flattened. In spirit: brown. 



Large am^phistrongyles : 0.5-2.3 mm. by 18-32 /(. Large styles: rare; 

 dimensions as in the amphistrongyles. Plagioclades: mostly triaene; rhabdome 

 1.8-2.2 mm. by 22-32 /x, sometimes much reduced in length, usually rounded at 

 the acladomal end; clades concave to the rhabdome, 155-190 /« long; clade- 

 angles usually 103-120°. Mesoproclades: mostly triaene, occasionally mon- 

 aene; rhabdome 3-5 thick, clades 40 60 /t long; clade-angles 36-41°; epirhabd 

 16-2'3 fx long. Anatriaenes: rhabdome 1.5-4 fx thick; clades 26-50 /x long; 

 clade-angles 25-41°. 



Oxyasters: from five to nine usually simple, rarely bifurcate, distally spined 

 rays, 0.8-2.1 p. thick; total diameter 20-30 [x. Oxy sphaerasters: from fourteen 

 to eighteen conical, distally spined rays, 2-2.8 p. thick ; centrum 6-7 fx, whole aster 

 19-28 n, in diameter. Smcdl strongylosphaerasters: from seven to twelve cylin- 

 drical or distally slightly thickened rays, 0.8-1.8 fx thick; centrum spherical or 

 irregular, 2.2-4 p in diameter; total diameter 4.8-8 }x; a few have more rays, 

 these perhaps foreign. Sterrasters: 100-110 by 87-94 by 72-78 



Southeastern Pacific. Easter Island. 



