318 



ERYLUS SOLLASII. 



Erylus oxyaster Lkndenfeld. 

 Ante, p. L'GS. 



Massive with lobose or digitate protuberances. In spirit : brown, part of 

 the surface hghter than the rest. 



Amphioxes: pointed, rarely bhint: 1.8-2.9 mm. by 60-85 fi. Styles: rare; 

 1.9-2.3 mm. by 60-105 /«. Angularly bent and branched rhabd-derivates : in 

 dimensions similar to the amphioxes, rare. Plagiotriaenes: rare; rhabdome 0.9 

 mm. by 75-90 /«; clades 0.7 mm. long; clade-angles 109-112°. Dichotriaenes: 

 rhabdome 0.6-1.6 mm. by 70-105 ft; main clades 250-400, end clades 40-450 /i 

 long; clade-angles 109-120°. Irregular dichotriaene-derivates : with the clades 

 reduced in number or the rhabdome reduced in length; rare. 



Microrhabds: more or less curved, centrotyle, generally isoactine amphi- 

 strongyles; 31-47, rarely up to 93 /t long, 3.5 4.5 /x thick. Oxyasters: usually 

 with a slight central thickening; one to twenty or more perfectly smooth, coni- 

 cal rays; total diameter 10-90 Aspidasters: oval, rarely roundish or irregu- 

 lar; the ordinary oval ones 208-243 by 125-150 by 30-40 /i. 



Eastern Pacific. Galapagos Islands: 0° 50' S., 89° 36' W. "Albatross" 

 Station 2809. 



Erylus nobilis Thiele. 



Abhandl. .Seiiekcnb. gescllsch., 1900, 25, p. IS, plate 2, fig. 17. Lendenfeld, Tierreicli, 1903, 19, 

 p. S5. 



Irregularly cylindrical. White; in the interior brownish. 



Amphioxes : rather abruptly pointed ; nearly 1 mm. by 30 fi. Orthotriaenes : 

 rhabdome 600 by 40 ft; clades 250 /x long, slightly curved. 



Microrhabds: centrotyle amphistrongyles ; about 48 by 6 /l Acanthtylas- 

 ters: most frequently seven rays ; each ray 20 /i long. Aspidasters: oval, outline 

 sometimes irregular; 190 by 90-100 by 40 /j.. 



Western Pacific. Ternate. 



Erylus sollasii IjEndenfeld. 

 Ante, p. 272. 



Irregularly massive, with lobose, gyriform, or short digitate processes. In 

 spirit: whitish to chestnut-brown or purplish brown; one part of the surface 

 sometimes darker than the rest. 



Blunt amphioxes: 425-980 by 8-24 /i. Sharp-pointed amphioxes, amphi- 

 strongyles, and styles of similar dimension; rare. Orthoplagiotriaenes: rhabdome 



